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    73 vulnerabilities by freescout-help-desk

    CVE-2026-53596 (GCVE-0-2026-53596)

    Vulnerability from cvelistv5 – Published: 2026-07-20 20:17 – Updated: 2026-07-21 16:27
    VLAI
    Title
    FreeScout has unrestricted file upload without rate limiting that leads to resource exhaustion (DoS)
    Summary
    FreeScout is a free help desk and shared inbox built with PHP's Laravel framework. Prior to version 1.8.224, the FreeScout helpdesk application does not enforce rate limiting on the file upload endpoint. Any user can flood the server with upload requests, leading to database overload and potential denial of service for all users. Version 1.8.224 contains a fix.
    SSVC
    Exploitation: poc Automatable: yes Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-07-21 16:23 UTC
    CWE
    • CWE-400 - Uncontrolled Resource Consumption
    • CWE-770 - Allocation of Resources Without Limits or Throttling
    References
    Impacted products
    Show details on NVD website

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    CVE-2026-53595 (GCVE-0-2026-53595)

    Vulnerability from cvelistv5 – Published: 2026-07-20 20:14 – Updated: 2026-07-21 14:56
    VLAI
    Title
    FreeScout vulnerable to anonymous account takeover via /user-setup empty invite_hash on MySQL
    Summary
    FreeScout is a free help desk and shared inbox built with PHP's Laravel framework. Prior to version 1.8.224, the public endpoint `POST /user-setup/{hash}/{invite_sent_at}` (`OpenController@userSetupSave`) selects the target account solely by its `invite_hash` column, then overwrites that account's email and password and logs in as it. No authentication, cookie, or prior session is required. After a user activates, FreeScout sets `invite_hash` to the empty string. On MySQL and MariaDB, `VARCHAR` equality ignores trailing spaces, so a single URL-encoded space (`%20`) matches the stored empty string and selects the lowest-id activated user. The expiry guard decrypts `invite_sent_at` with the target's password hash, but `Helper::decrypt` returns its raw input unchanged when decryption fails. A plaintext numeric value such as `9999999999` therefore passes the time-to-live check without any secret. The result is that an anonymous attacker sets the email and password of the lowest-id activated FreeScout account (a support agent, or an administrator if one was added by invitation) and authenticates as that account. Version 1.8.224 contains a fix.
    SSVC
    Exploitation: poc Automatable: yes Technical Impact: total
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-07-21 13:20 UTC
    CWE
    • CWE-178 - Improper Handling of Case Sensitivity
    • CWE-287 - Improper Authentication
    • CWE-640 - Weak Password Recovery Mechanism for Forgotten Password
    References
    Impacted products
    Show details on NVD website

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    CVE-2026-53594 (GCVE-0-2026-53594)

    Vulnerability from cvelistv5 – Published: 2026-07-20 20:12 – Updated: 2026-07-21 13:55
    VLAI
    Title
    FreeScout has Arbitrary File Read in App Logs Viewer via Forged Encrypted Path
    Summary
    FreeScout is a free help desk and shared inbox built with PHP's Laravel framework. FreeScout's `Manage -> Logs -> App Logs` feature uses the bundled `rap2hpoutre/laravel-log-viewer` override to decrypt a user-supplied file identifier and then pass the resolved path to Laravel's download response. Prior to version 1.8.224, the path resolution logic accepts any existing absolute path before applying the intended `storage/logs` restriction. As a result, an attacker who can access the App Logs route and forge a valid Laravel-encrypted `dl` parameter can download arbitrary server-local files readable by the PHP process, not just log files. Version 1.8.224 contains a fix.
    SSVC
    Exploitation: poc Automatable: no Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-07-21 13:54 UTC
    CWE
    • CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
    References
    Impacted products
    Show details on NVD website

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    CVE-2026-53593 (GCVE-0-2026-53593)

    Vulnerability from cvelistv5 – Published: 2026-07-20 19:52 – Updated: 2026-07-21 14:56
    VLAI
    Title
    FreeScout Vulnerable to Authenticated Remote Code Execution via incomplete upload extension denylist (.pht) — bypass of CVE-2025-48471
    Summary
    FreeScout is a free help desk and shared inbox built with PHP's Laravel framework. Prior to version 1.8.224, the denylist that neutralizes dangerous file uploads (`Helper::$restricted_extensions`) is incomplete: it does not cover the `.pht` extension. The authenticated upload endpoint `POST /uploads/upload` (`SecureController@upload`) stores files with their original extension into the web-accessible directory `storage/app/public/uploads/` (served at `/storage/uploads/`). On the standard Apache + `libapache2-mod-php` deployment, the default handler `<FilesMatch ".+\.ph(ar|p[3457]?|t|tml)$">` executes `.pht`, so **any authenticated agent can upload a `.pht` web shell and run arbitrary commands as the web-server user** (`www-data`). This is a direct bypass of the fix for CVE-2025-48471, which added `phtml`/`phar` but not `pht` (nor `phtm`, `phps`). Version 1.8.224 contains an updated fix.
    SSVC
    Exploitation: poc Automatable: no Technical Impact: total
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-07-21 13:21 UTC
    CWE
    • CWE-434 - Unrestricted Upload of File with Dangerous Type
    References
    Impacted products
    Show details on NVD website

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    CVE-2026-53592 (GCVE-0-2026-53592)

    Vulnerability from cvelistv5 – Published: 2026-07-20 19:49 – Updated: 2026-07-21 14:42
    VLAI
    Title
    FreeScout vulnerable to prototype pollution in getQueryParam
    Summary
    FreeScout is a free help desk and shared inbox built with PHP's Laravel framework. A Prototype Pollution condition in the `getQueryParam` function `/public/js/main.js` and was addressed in version 1.8.139 by blocking URL query keys matching the pattern `__proto__`. However, this mitigation is incomplete: it only filters top-level `__proto__` keys and fails to sanitize nested forms such as `b[__proto__][polluted]=PWNED`. As a result, an attacker-controlled URL query string can still write into `Object.prototype` on any page that loads `main.js`. Version 1.8.223 contains a updated fix.
    SSVC
    Exploitation: poc Automatable: no Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-07-21 14:42 UTC
    CWE
    • CWE-1321 - Improperly Controlled Modification of Object Prototype Attributes ('Prototype Pollution')
    References
    Impacted products
    Show details on NVD website

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    CVE-2026-53591 (GCVE-0-2026-53591)

    Vulnerability from cvelistv5 – Published: 2026-07-20 19:47 – Updated: 2026-07-20 20:15
    VLAI
    Title
    FreeScout Vulnerable to Unauthenticated Conversation Thread Injection via HMAC Length Bypass in FetchEmails
    Summary
    FreeScout is a free help desk and shared inbox built with PHP's Laravel framework. Prior to version 1.8.223, an unauthenticated attacker can inject messages into any existing support conversation by sending a single email to the helpdesk's public address with a crafted `In-Reply-To` header. No credentials, tokens, or prior access are required. The injected message is rendered in the agent UI as a legitimate customer reply, the conversation is automatically reopened, and the `last_reply_from` field is set to the attacker's identity. Version 1.8.223 contains a fix.
    SSVC
    Exploitation: poc Automatable: yes Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-07-20 20:15 UTC
    CWE
    • CWE-287 - Improper Authentication
    References
    Impacted products
    Show details on NVD website

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    CVE-2026-48812 (GCVE-0-2026-48812)

    Vulnerability from cvelistv5 – Published: 2026-07-20 17:32 – Updated: 2026-07-20 18:25
    VLAI
    Title
    FreeScout Allows Unauthenticated Access to Legacy Attachment Files
    Summary
    FreeScout is a free help desk and shared inbox built with PHP's Laravel framework. Prior to version 1.8.221, FreeScout's attachment download route skips token authentication for any attachment whose `token_type` is set to `1` (`TOKEN_TYPE_LEGACY`). Because this route is unauthenticated and the file path is deterministic, an unauthenticated remote attacker can download any attachment that was created by an older version of FreeScout without possessing a valid token or session. Version 1.8.221 contains a fix.
    SSVC
    Exploitation: poc Automatable: yes Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-07-20 18:25 UTC
    CWE
    • CWE-287 - Improper Authentication
    References
    Impacted products
    Show details on NVD website

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    CVE-2026-45295 (GCVE-0-2026-45295)

    Vulnerability from cvelistv5 – Published: 2026-07-20 17:21 – Updated: 2026-07-20 21:42
    VLAI
    Title
    FreeScout Vulnerable to Unauthenticated Thread Read-Status Manipulation and Conversation Enumeration via Open Tracking Endpoint
    Summary
    FreeScout is a free help desk and shared inbox built with PHP's Laravel framework. Prior to version 1.8.219, the open tracking endpoint `GET /thread/read/{conversation_id}/{thread_id}` allows unauthenticated attackers to enumerate valid conversation and thread IDs, and modify thread state (`opened_at` timestamp) without any authentication. Version 1.8.219 patches the issue.
    SSVC
    Exploitation: poc Automatable: yes Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-07-20 21:42 UTC
    CWE
    • CWE-639 - Authorization Bypass Through User-Controlled Key
    • CWE-862 - Missing Authorization
    References
    Impacted products
    Show details on NVD website

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    CVE-2026-45294 (GCVE-0-2026-45294)

    Vulnerability from cvelistv5 – Published: 2026-05-29 19:52 – Updated: 2026-06-02 01:56
    VLAI
    Title
    FreeScout: User Account Enumeration via Password Reset Response Differentiation
    Summary
    FreeScout is a free help desk and shared inbox built with PHP's Laravel framework. Prior to 1.8.219, the password reset endpoint returns visually distinct responses depending on whether the submitted email address belongs to an existing user account, allowing unauthenticated attackers to enumerate valid helpdesk agent email addresses. This vulnerability is fixed in 1.8.219.
    SSVC
    Exploitation: poc Automatable: yes Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-06-02 01:55 UTC
    CWE
    • CWE-203 - Observable Discrepancy
    • CWE-204 - Observable Response Discrepancy
    References
    Impacted products
    Show details on NVD website

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    CVE-2026-47123 (GCVE-0-2026-47123)

    Vulnerability from cvelistv5 – Published: 2026-05-29 19:51 – Updated: 2026-06-02 01:54
    VLAI
    Title
    FreeScout: Agent Impersonation via Missing HMAC Verification on Notification Reply Message-ID Path
    Summary
    FreeScout is a free help desk and shared inbox built with PHP's Laravel framework. Prior to 1.8.220, the email processing pipeline in FreeScout's FetchEmails command has two code paths for identifying agent (user) replies based on In-Reply-To / References headers. The notification reply path (notify-{thread_id}-{user_id}-...) extracts thread_id and user_id directly from the Message-ID without HMAC verification. An external attacker who can spoof the From address of a helpdesk agent can inject messages that FreeScout processes as legitimate agent replies — which are then automatically forwarded to customers via the legitimate SMTP server. This vulnerability is fixed in 1.8.220.
    SSVC
    Exploitation: poc Automatable: no Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-06-02 01:54 UTC
    CWE
    • CWE-290 - Authentication Bypass by Spoofing
    • CWE-345 - Insufficient Verification of Data Authenticity
    Impacted products
    Show details on NVD website

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    CVE-2026-48810 (GCVE-0-2026-48810)

    Vulnerability from cvelistv5 – Published: 2026-05-29 19:48 – Updated: 2026-06-01 18:02
    VLAI
    Title
    FreeScout: Thread Edit Authorization Bypass via Missing Mailbox Check
    Summary
    FreeScout is a free help desk and shared inbox built with PHP's Laravel framework. Prior to 1.8.221, while investigating the ThreadPolicy::delete issue reported previously, the same missing mailbox membership check was found in the sibling ThreadPolicy::edit method. A user with the PERM_EDIT_CONVERSATIONS permission who created a message or internal note in Mailbox A can rewrite that thread's body after an administrator removes them from Mailbox A, because the policy checks only authorship and a global permission flag — not current mailbox membership. This vulnerability is fixed in 1.8.221.
    SSVC
    Exploitation: poc Automatable: no Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-06-01 18:00 UTC
    CWE
    References
    Impacted products
    Show details on NVD website

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    CVE-2026-48811 (GCVE-0-2026-48811)

    Vulnerability from cvelistv5 – Published: 2026-05-29 19:47 – Updated: 2026-06-01 15:15
    VLAI
    Title
    FreeScout: Thread Deletion Bypasses Mailbox Access Revocation
    Summary
    FreeScout is a free help desk and shared inbox built with PHP's Laravel framework. Prior to 1.8.221, FreeScout allows a non-admin user to permanently delete an internal note (private thread) from any conversation, even after that user's access to the mailbox containing the conversation has been revoked. The ThreadPolicy::delete authorization policy does not verify mailbox membership, so a former team member retains destructive write access to notes they created. This vulnerability is fixed in 1.8.221.
    SSVC
    Exploitation: poc Automatable: no Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-06-01 15:15 UTC
    CWE
    References
    Impacted products
    Show details on NVD website

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    CVE-2026-41906 (GCVE-0-2026-41906)

    Vulnerability from cvelistv5 – Published: 2026-05-07 18:09 – Updated: 2026-05-08 14:19
    VLAI
    Title
    FreeScout: Conversation Change-Customer Cross-Mailbox Authorization Bypass
    Summary
    FreeScout is a free help desk and shared inbox built with PHP's Laravel framework. Prior to version 1.8.214, the Change Customer modal correctly hides out-of-scope customers through the mailbox-filtered search endpoint, but the backend conversation_change_customer action accepts any supplied customer_email. A low-privileged agent can forge a request and bind a visible conversation to a hidden customer in another mailbox. This issue has been patched in version 1.8.214.
    SSVC
    Exploitation: poc Automatable: no Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-05-08 14:19 UTC
    CWE
    • CWE-639 - Authorization Bypass Through User-Controlled Key
    References
    Impacted products
    Show details on NVD website

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    CVE-2026-41905 (GCVE-0-2026-41905)

    Vulnerability from cvelistv5 – Published: 2026-05-07 18:08 – Updated: 2026-05-07 20:15
    VLAI
    Title
    FreeScout vulnerable to SSRF via Helper::sanitizeRemoteUrl: redirect destination not re-validated, allowing internal HTTP / cloud-metadata access
    Summary
    FreeScout is a free help desk and shared inbox built with PHP's Laravel framework. Prior to version 1.8.217, Helper::sanitizeRemoteUrl() in app/Misc/Helper.php follows HTTP redirects via curlGetLastRedirectedUrl() but then re-validates the original URL instead of the final redirect destination. An attacker who can supply any URL that passes the initial host check can redirect FreeScout to internal HTTP services (cloud metadata, internal APIs, RFC1918 ranges) that would normally be blocked. This issue has been patched in version 1.8.217.
    SSVC
    Exploitation: poc Automatable: no Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-05-07 20:13 UTC
    CWE
    • CWE-918 - Server-Side Request Forgery (SSRF)
    References
    Impacted products
    Show details on NVD website

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    CVE-2026-41904 (GCVE-0-2026-41904)

    Vulnerability from cvelistv5 – Published: 2026-05-07 18:05 – Updated: 2026-05-07 19:16
    VLAI
    Title
    FreeScout Stored XSS vulnerability in mailbox auto-reply: payload reaches every customer's email client (no CSP), bypassing strip_tags validator with mixed text+HTML content
    Summary
    FreeScout is a free help desk and shared inbox built with PHP's Laravel framework. Prior to version 1.8.217, a user with updateAutoReply permission can store an XSS payload in the mailbox auto-reply message. The payload is rendered unescaped in the auto-reply email sent to every customer who contacts the mailbox. Email clients do not enforce CSP, so the payload executes in the customer's webmail / mail-client context. This issue has been patched in version 1.8.217.
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-05-07 19:16 UTC
    CWE
    • CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
    References
    Impacted products
    Show details on NVD website

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    CVE-2026-41902 (GCVE-0-2026-41902)

    Vulnerability from cvelistv5 – Published: 2026-05-07 18:03 – Updated: 2026-05-08 21:30
    VLAI
    Title
    FreeScout's user invitation hash never expires: permanent unauthenticated account takeover if invite link leaks
    Summary
    FreeScout is a free help desk and shared inbox built with PHP's Laravel framework. Prior to version 1.8.217, the /user-setup/{hash} endpoint accepts a 60-character random invite_hash to set a new user's password. The endpoint performs no expiration check — the hash remains valid indefinitely until consumed. Combined with realistic hash-leakage scenarios (forwarded invite emails, HTTP referrer to external CDNs on the setup page, server-side log exposure, abandoned invite emails in shared inboxes), this enables unauthenticated permanent account takeover months or years after invite issuance. If the leaked invite was sent to an admin, the takeover yields admin access. This issue has been patched in version 1.8.217.
    SSVC
    Exploitation: poc Automatable: yes Technical Impact: total
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-05-08 14:40 UTC
    CWE
    • CWE-613 - Insufficient Session Expiration
    References
    Impacted products
    Show details on NVD website

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    CVE-2026-41903 (GCVE-0-2026-41903)

    Vulnerability from cvelistv5 – Published: 2026-05-07 18:02 – Updated: 2026-05-08 22:49
    VLAI
    Title
    FreeScout IDOR Vulnerability: PERM_EDIT_USERS allows modifying any user's notification subscriptions (incomplete fix of CVE-2025-48472)
    Summary
    FreeScout is a free help desk and shared inbox built with PHP's Laravel framework. Prior to version 1.8.217, a user holding the PERM_EDIT_USERS permission (intended for general user-profile editing) can read and modify the notification subscriptions of any other user, including admins, by sending a single POST request. This is a sibling of CVE-2025-48472's notification authorization bypass — the prior fix did not cover this code path. A non-admin attacker can silently disable an admin's email/browser/mobile notifications, suppressing security alerts and conversation-assignment notices. This issue has been patched in version 1.8.217.
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-05-08 22:49 UTC
    CWE
    • CWE-863 - Incorrect Authorization
    References
    Impacted products
    Show details on NVD website

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    CVE-2026-41194 (GCVE-0-2026-41194)

    Vulnerability from cvelistv5 – Published: 2026-04-21 17:16 – Updated: 2026-04-22 13:24
    VLAI
    Title
    FreeScout's Mailbox OAuth disconnect uses a state-changing GET and is CSRFable
    Summary
    FreeScout is a free self-hosted help desk and shared mailbox. Prior to version 1.8.215, the mailbox OAuth disconnect action is implemented as `GET /mailbox/oauth-disconnect/{id}/{in_out}/{provider}`. It removes stored OAuth metadata from the mailbox and then redirects. Because it is a GET route, no CSRF token is required and the action can be triggered cross-site against a logged-in mailbox admin. Version 1.8.215 fixes the vulnerability.
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-04-22 13:24 UTC
    CWE
    • CWE-352 - Cross-Site Request Forgery (CSRF)
    Impacted products
    Show details on NVD website

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    CVE-2026-41193 (GCVE-0-2026-41193)

    Vulnerability from cvelistv5 – Published: 2026-04-21 17:15 – Updated: 2026-04-21 20:36
    VLAI
    Title
    FreeScout has Zip Slip path traversal in module installation that allows arbitrary file write leading to RCE
    Summary
    FreeScout is a free self-hosted help desk and shared mailbox. Prior to version 1.8.215, FreeScout's module installation feature extracts ZIP archives without validating file paths, allowing an authenticated admin to write files arbitrarily on the server filesystem via a specially crafted ZIP. Version 1.8.215 fixes the vulnerability.
    SSVC
    Exploitation: poc Automatable: no Technical Impact: total
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-04-21 19:55 UTC
    CWE
    • CWE-22 - Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
    Impacted products
    Show details on NVD website

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    CVE-2026-41192 (GCVE-0-2026-41192)

    Vulnerability from cvelistv5 – Published: 2026-04-21 17:12 – Updated: 2026-04-21 19:01
    VLAI
    Title
    FreeScout's client-controlled attachment IDs allow deletion of existing conversation attachments
    Summary
    FreeScout is a free self-hosted help desk and shared mailbox. Prior to version 1.8.215, the reply and draft flows trust client-supplied encrypted attachment IDs. Any IDs present in `attachments_all[]` but omitted from retained lists are decrypted and passed directly to `Attachment::deleteByIds()`. Because `load_attachments` returns encrypted IDs for attachments on a visible conversation, a mailbox peer can replay those IDs through `save_draft` and delete the original attachment row and file. Version 1.8.215 fixes the vulnerability.
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-04-21 19:01 UTC
    CWE
    Impacted products
    Show details on NVD website

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    CVE-2026-41191 (GCVE-0-2026-41191)

    Vulnerability from cvelistv5 – Published: 2026-04-21 17:09 – Updated: 2026-04-21 19:07
    VLAI
    Title
    FreeScout's signature only mailbox permission allows unauthorized mailbox chat setting changes
    Summary
    FreeScout is a free self-hosted help desk and shared mailbox. Prior to version 1.8.215, `MailboxesController::updateSave()` persists `chat_start_new` outside the allowed-field filter. A user with only the mailbox `sig` permission sees only the signature field in the UI, but can still change the hidden mailbox-wide chat setting via direct POST. Version 1.8.215 fixes the vulnerability.
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-04-21 19:07 UTC
    CWE
    • CWE-863 - Incorrect Authorization
    Impacted products
    Show details on NVD website

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    CVE-2026-41190 (GCVE-0-2026-41190)

    Vulnerability from cvelistv5 – Published: 2026-04-21 17:06 – Updated: 2026-04-21 17:48
    VLAI
    Title
    FreeScout has assigned-only visibility bypass via save_draft that allows hidden conversation draft injection
    Summary
    FreeScout is a free self-hosted help desk and shared mailbox. Prior to version 1.8.215, when `APP_SHOW_ONLY_ASSIGNED_CONVERSATIONS` is enabled, direct conversation view correctly blocks users who are neither the assignee nor the creator. The `save_draft` AJAX path is weaker. A direct POST can create a draft inside a conversation that is hidden in the UI. Version 1.8.215 fixes the vulnerability.
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-04-21 17:47 UTC
    CWE
    • CWE-863 - Incorrect Authorization
    Impacted products
    Show details on NVD website

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    CVE-2026-41189 (GCVE-0-2026-41189)

    Vulnerability from cvelistv5 – Published: 2026-04-21 17:04 – Updated: 2026-04-21 17:37
    VLAI
    Title
    FreeScout has assigned-only visibility bypass that allows editing hidden customer-authored threads
    Summary
    FreeScout is a free self-hosted help desk and shared mailbox. Prior to version 1.8.215, customer-thread editing is authorized through `ThreadPolicy::edit()`, which checks mailbox access but does not apply the assigned-only restriction from `ConversationPolicy`. A user who cannot view a conversation can still load and edit customer-authored threads inside it. Version 1.8.215 fixes the vulnerability.
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-04-21 17:36 UTC
    CWE
    • CWE-863 - Incorrect Authorization
    Impacted products
    Show details on NVD website

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    CVE-2026-41183 (GCVE-0-2026-41183)

    Vulnerability from cvelistv5 – Published: 2026-04-21 17:00 – Updated: 2026-04-21 20:37
    VLAI
    Title
    FreeScout allows non-folder conversation queries to disclose assigned-only hidden conversations
    Summary
    FreeScout is a free self-hosted help desk and shared mailbox. Prior to version 1.8.215, the assigned-only restriction is applied to direct conversation view and folder queries, but not to non-folder query builders. Global search and the AJAX filter path still reveal conversations that should be hidden. Version 1.8.215 fixes the vulnerability.
    SSVC
    Exploitation: poc Automatable: no Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-04-21 20:00 UTC
    CWE
    • CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
    Impacted products
    Show details on NVD website

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    CVE-2026-40592 (GCVE-0-2026-40592)

    Vulnerability from cvelistv5 – Published: 2026-04-21 16:57 – Updated: 2026-04-21 19:10
    VLAI
    Title
    FreeScout's cross-user undo reply allows mailbox peers to recall another agent's outbound reply
    Summary
    FreeScout is a free self-hosted help desk and shared mailbox. Prior to version 1.8.214, the undo-send route `GET /conversation/undo-reply/{thread_id}` checks only whether the current user can view the parent conversation. It does not verify that the current user created the reply being undone. In a shared mailbox, one agent can therefore recall another agent's just-sent reply during the 15-second undo window. Version 1.8.214 fixes the vulnerability.
    SSVC
    Exploitation: none Automatable: no Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-04-21 19:10 UTC
    CWE
    Impacted products
    Show details on NVD website

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    CVE-2026-40591 (GCVE-0-2026-40591)

    Vulnerability from cvelistv5 – Published: 2026-04-21 16:54 – Updated: 2026-04-21 17:46
    VLAI
    Title
    FreeScout: Improper Authorization in Phone Conversation Creation Enables Cross-Mailbox Hidden Customer Modification
    Summary
    FreeScout is a free self-hosted help desk and shared mailbox. Prior to version 1.8.214, the phone-conversation creation flow accepts attacker-controlled `customer_id`, `name`, `to_email`, and `phone` values and resolves the target customer in the backend without enforcing mailbox-scoped customer visibility. As a result, a low-privileged agent who can create a phone conversation in Mailbox A can bind the new Mailbox A phone conversation to a hidden customer from Mailbox B and add a new alias email to that hidden customer record by supplying `to_email`. Version 1.8.214 fixes the vulnerability.
    SSVC
    Exploitation: poc Automatable: no Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-04-21 17:46 UTC
    CWE
    • CWE-639 - Authorization Bypass Through User-Controlled Key
    Impacted products
    Show details on NVD website

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    CVE-2026-40590 (GCVE-0-2026-40590)

    Vulnerability from cvelistv5 – Published: 2026-04-21 16:52 – Updated: 2026-04-21 17:39
    VLAI
    Title
    FreeScout's Customer AJAX Create Modifies Hidden Existing Customer
    Summary
    FreeScout is a free self-hosted help desk and shared mailbox. Prior to version 1.8.214, the Change Customer modal exposes a “Create a new customer” flow via POST /customers/ajax with action=create. Under limited visibility, the endpoint drops unique-email validation. If the supplied email already belongs to a hidden customer, Customer::create() reuses that hidden customer object and fills empty profile fields from attacker-controlled input. Version 1.8.214 fixes the vulnerability.
    SSVC
    Exploitation: poc Automatable: no Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-04-21 17:39 UTC
    CWE
    • CWE-639 - Authorization Bypass Through User-Controlled Key
    Impacted products
    Show details on NVD website

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    CVE-2026-40589 (GCVE-0-2026-40589)

    Vulnerability from cvelistv5 – Published: 2026-04-21 16:50 – Updated: 2026-04-21 20:37
    VLAI
    Title
    FreeScout has Customer Edit Cross-Mailbox Email Takeover
    Summary
    FreeScout is a free self-hosted help desk and shared mailbox. Prior to version 1.8.214, a low-privileged agent can edit a visible customer and add an email address already owned by a hidden customer in another mailbox. The server discloses the hidden customer’s name and profile URL in the success flash, reassigns the hidden email to the visible customer, and rebinds hidden-mailbox conversations for that email to the visible customer. Version 1.8.214 fixes the issue.
    SSVC
    Exploitation: poc Automatable: no Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-04-21 20:17 UTC
    CWE
    • CWE-639 - Authorization Bypass Through User-Controlled Key
    Impacted products
    Show details on NVD website

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    CVE-2026-40570 (GCVE-0-2026-40570)

    Vulnerability from cvelistv5 – Published: 2026-04-21 16:48 – Updated: 2026-04-21 19:11
    VLAI
    Title
    FreeScout's Missing Authorization in load_customer_info Allows Any Authenticated User to Access Full Customer PII
    Summary
    FreeScout is a free self-hosted help desk and shared mailbox. Prior to version 1.8.213, the `load_customer_info` action in `POST /conversation/ajax` returns complete customer profile data to any authenticated user without verifying mailbox access. An attacker only needs a valid email address to retrieve all customer PII. Version 1.8.213 fixes the issue.
    SSVC
    Exploitation: poc Automatable: no Technical Impact: partial
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-04-21 19:11 UTC
    CWE
    • CWE-639 - Authorization Bypass Through User-Controlled Key
    • CWE-862 - Missing Authorization
    Impacted products
    Show details on NVD website

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    CVE-2026-40569 (GCVE-0-2026-40569)

    Vulnerability from cvelistv5 – Published: 2026-04-21 16:46 – Updated: 2026-04-21 17:45
    VLAI
    Title
    FreeScout's Mass Assignment in Mailbox Connection Settings Enables Silent Email Exfiltration
    Summary
    FreeScout is a free self-hosted help desk and shared mailbox. Versions prior to 1.8.213 have a mass assignment vulnerability in the mailbox connection settings endpoints of FreeScout (`connectionIncomingSave()` at `app/Http/Controllers/MailboxesController.php:468` and `connectionOutgoingSave()` at line 398). Both methods pass `$request->all()` directly to `$mailbox->fill()` without any field allowlisting, allowing an authenticated admin to overwrite any of the 32 fields in the Mailbox model's `$fillable` array -- including security-critical fields that do not belong to the connection settings form, such as `auto_bcc`, `out_server`, `out_password`, `signature`, `auto_reply_enabled`, and `auto_reply_message`. Validation in `connectionIncomingSave()` is entirely commented out, and the validator in `connectionOutgoingSave()` only checks value formats for SMTP fields without stripping extra parameters. An authenticated admin user can exploit this by appending hidden parameters (e.g., `auto_bcc=attacker@evil.com`) to a legitimate connection settings save request. Because the `auto_bcc` field is not displayed on the connection settings form (it only appears on the general mailbox settings page), the injection is invisible to other administrators reviewing connection settings. Once set, every outgoing email from the affected mailbox is silently BCC'd to the attacker via the `SendReplyToCustomer` job. The same mechanism allows redirecting outgoing SMTP through an attacker-controlled server, injecting tracking pixels or phishing links into email signatures, and enabling attacker-crafted auto-replies -- all from a single HTTP request. This is particularly dangerous in multi-admin environments where one admin can silently surveil mailboxes managed by others, and when an admin session is compromised via a separate vulnerability (e.g., XSS), the attacker gains persistent email exfiltration that survives session expiry. Version 1.8.213 fixes the issue.
    SSVC
    Exploitation: poc Automatable: no Technical Impact: total
    CISA Coordinator · CISA-ADP (v2.0.3)
    Decision recorded 2026-04-21 17:45 UTC
    CWE
    • CWE-284 - Improper Access Control
    • CWE-915 - Improperly Controlled Modification of Dynamically-Determined Object Attributes
    Impacted products
    Show details on NVD website

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              "value": "FreeScout is a free self-hosted help desk and shared mailbox. Versions prior to 1.8.213 have a mass assignment vulnerability in the mailbox connection settings endpoints of FreeScout (`connectionIncomingSave()` at `app/Http/Controllers/MailboxesController.php:468` and `connectionOutgoingSave()` at line 398). Both methods pass `$request-\u003eall()` directly to `$mailbox-\u003efill()` without any field allowlisting, allowing an authenticated admin to overwrite any of the 32 fields in the Mailbox model\u0027s `$fillable` array -- including security-critical fields that do not belong to the connection settings form, such as `auto_bcc`, `out_server`, `out_password`, `signature`, `auto_reply_enabled`, and `auto_reply_message`. Validation in `connectionIncomingSave()` is entirely commented out, and the validator in `connectionOutgoingSave()` only checks value formats for SMTP fields without stripping extra parameters. An authenticated admin user can exploit this by appending hidden parameters (e.g., `auto_bcc=attacker@evil.com`) to a legitimate connection settings save request. Because the `auto_bcc` field is not displayed on the connection settings form (it only appears on the general mailbox settings page), the injection is invisible to other administrators reviewing connection settings. Once set, every outgoing email from the affected mailbox is silently BCC\u0027d to the attacker via the `SendReplyToCustomer` job. The same mechanism allows redirecting outgoing SMTP through an attacker-controlled server, injecting tracking pixels or phishing links into email signatures, and enabling attacker-crafted auto-replies -- all from a single HTTP request. This is particularly dangerous in multi-admin environments where one admin can silently surveil mailboxes managed by others, and when an admin session is compromised via a separate vulnerability (e.g., XSS), the attacker gains persistent email exfiltration that survives session expiry. Version 1.8.213 fixes the issue."
            }
          ],
          "metrics": [
            {
              "cvssV3_1": {
                "attackComplexity": "LOW",
                "attackVector": "NETWORK",
                "availabilityImpact": "LOW",
                "baseScore": 9,
                "baseSeverity": "CRITICAL",
                "confidentialityImpact": "HIGH",
                "integrityImpact": "HIGH",
                "privilegesRequired": "HIGH",
                "scope": "CHANGED",
                "userInteraction": "NONE",
                "vectorString": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:L",
                "version": "3.1"
              }
            }
          ],
          "problemTypes": [
            {
              "descriptions": [
                {
                  "cweId": "CWE-284",
                  "description": "CWE-284: Improper Access Control",
                  "lang": "en",
                  "type": "CWE"
                }
              ]
            },
            {
              "descriptions": [
                {
                  "cweId": "CWE-915",
                  "description": "CWE-915: Improperly Controlled Modification of Dynamically-Determined Object Attributes",
                  "lang": "en",
                  "type": "CWE"
                }
              ]
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2026-04-21T16:46:15.796Z",
            "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
            "shortName": "GitHub_M"
          },
          "references": [
            {
              "name": "https://github.com/freescout-help-desk/freescout/security/advisories/GHSA-hmqm-33wp-858j",
              "tags": [
                "x_refsource_CONFIRM"
              ],
              "url": "https://github.com/freescout-help-desk/freescout/security/advisories/GHSA-hmqm-33wp-858j"
            },
            {
              "name": "https://github.com/freescout-help-desk/freescout/commit/f45b9105d43b0352c08fcca154e8ae6177c3d860",
              "tags": [
                "x_refsource_MISC"
              ],
              "url": "https://github.com/freescout-help-desk/freescout/commit/f45b9105d43b0352c08fcca154e8ae6177c3d860"
            },
            {
              "name": "https://github.com/freescout-help-desk/freescout/releases/tag/1.8.213",
              "tags": [
                "x_refsource_MISC"
              ],
              "url": "https://github.com/freescout-help-desk/freescout/releases/tag/1.8.213"
            }
          ],
          "source": {
            "advisory": "GHSA-hmqm-33wp-858j",
            "discovery": "UNKNOWN"
          },
          "title": "FreeScout\u0027s Mass Assignment in Mailbox Connection Settings Enables Silent Email Exfiltration"
        }
      },
      "cveMetadata": {
        "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "assignerShortName": "GitHub_M",
        "cveId": "CVE-2026-40569",
        "datePublished": "2026-04-21T16:46:15.796Z",
        "dateReserved": "2026-04-14T13:24:29.474Z",
        "dateUpdated": "2026-04-21T17:45:31.659Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }