Search criteria
1055 vulnerabilities found for mattermost_server by mattermost
CVE-2025-14435 (GCVE-0-2025-14435)
Vulnerability from nvd – Published: 2026-01-16 11:25 – Updated: 2026-01-16 14:09
VLAI?
Title
Application-Level DoS via infinite re-render loop in user profile handling
Summary
Mattermost versions 10.11.x <= 10.11.8, 11.1.x <= 11.1.1, 11.0.x <= 11.0.6 fail to prevent infinite re-renders on API errors which allows authenticated users to cause application-level DoS via triggering unbounded component re-render loops.
Severity ?
6.8 (Medium)
CWE
- CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Mattermost | Mattermost |
Affected:
10.11.0 , ≤ 10.11.8
(semver)
Affected: 11.1.0 , ≤ 11.1.1 (semver) Affected: 11.0.0 , ≤ 11.0.6 (semver) Unaffected: 11.2.0 Unaffected: 10.11.9 Unaffected: 11.1.2 Unaffected: 11.0.7 |
Credits
daw10
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CVE-2025-14822 (GCVE-0-2025-14822)
Vulnerability from nvd – Published: 2026-01-16 08:52 – Updated: 2026-01-16 13:00
VLAI?
Title
DoS from quadratic complexity in model.ParseHashtags
Summary
Mattermost versions 10.11.x <= 10.11.8 fail to validate input size before processing hashtags which allows an authenticated attacker to exhaust CPU resources via a single HTTP request containing a post with thousands space-separated tokens
Severity ?
CWE
- CWE-407 - Inefficient Algorithmic Complexity
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Mattermost | Mattermost |
Affected:
10.11.0 , ≤ 10.11.8
(semver)
Unaffected: 11.2.0 Unaffected: 10.11.9 |
Credits
CatenaCyber
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CVE-2025-64641 (GCVE-0-2025-64641)
Vulnerability from nvd – Published: 2025-12-24 08:02 – Updated: 2025-12-24 16:35
VLAI?
Title
Mattermost Jira plugin crafted action leaks Jira issue details
Summary
Mattermost versions 11.1.x <= 11.1.0, 11.0.x <= 11.0.5, 10.12.x <= 10.12.3, 10.11.x <= 10.11.7 fail to verify that post actions invoking /share-issue-publicly were created by the Jira plugin which allowed a malicious Mattermost user to exfiltrate Jira tickets when victim users interacted with affected posts
Severity ?
4.1 (Medium)
CWE
- CWE-863 - Incorrect Authorization
Assigner
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Mattermost | Mattermost |
Affected:
11.1.0 , ≤ 11.1.0
(semver)
Affected: 11.0.0 , ≤ 11.0.5 (semver) Affected: 10.12.0 , ≤ 10.12.3 (semver) Affected: 10.11.0 , ≤ 10.11.7 (semver) Unaffected: 11.2.0 Unaffected: 11.1.1 Unaffected: 11.0.6 Unaffected: 10.12.4 Unaffected: 10.11.8 |
Credits
Juho Forsén
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CVE-2025-13767 (GCVE-0-2025-13767)
Vulnerability from nvd – Published: 2025-12-24 08:01 – Updated: 2025-12-24 16:36
VLAI?
Title
Unauthorized Read Access to Private Channel Posts via Mattermost Jira Plugin
Summary
Mattermost versions 11.1.x <= 11.1.0, 11.0.x <= 11.0.5, 10.12.x <= 10.12.3, 10.11.x <= 10.11.7 fails to validate user channel membership when attaching Mattermost posts as comments to Jira issues, which allows an authenticated attacker with access to the Jira plugin to read post content and attachments from channels they do not have access to.
Severity ?
4.3 (Medium)
CWE
- CWE-863 - Incorrect Authorization
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Mattermost | Mattermost |
Affected:
11.1.0 , ≤ 11.1.0
(semver)
Affected: 11.0.0 , ≤ 11.0.5 (semver) Affected: 10.12.0 , ≤ 10.12.3 (semver) Affected: 10.11.0 , ≤ 10.11.7 (semver) Unaffected: 11.2.0 Unaffected: 11.1.1 Unaffected: 11.0.6 Unaffected: 10.12.4 Unaffected: 10.11.8 |
Credits
Juho Forsén
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CVE-2025-14273 (GCVE-0-2025-14273)
Vulnerability from nvd – Published: 2025-12-22 11:24 – Updated: 2025-12-22 12:59
VLAI?
Title
Mattermost Jira plugin user spoofing enables Jira request forgery.
Summary
Mattermost versions 11.1.x <= 11.1.0, 11.0.x <= 11.0.5, 10.12.x <= 10.12.3, 10.11.x <= 10.11.7 with the Jira plugin enabled and Mattermost Jira plugin versions <=4.4.0 fail to enforce authentication and issue-key path restrictions in the Jira plugin, which allows an unauthenticated attacker who knows a valid user ID to issue authenticated GET and POST requests to the Jira server via crafted plugin payloads that spoof the user ID and inject arbitrary issue key paths. Mattermost Advisory ID: MMSA-2025-00555
Severity ?
7.2 (High)
CWE
- CWE-303 - Incorrect Implementation of Authentication Algorithm
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Mattermost | Mattermost |
Affected:
11.1.0 , ≤ 11.1.0
(semver)
Affected: 11.0.0 , ≤ 11.0.5 (semver) Affected: 10.12.0 , ≤ 10.12.3 (semver) Affected: 10.11.0 , ≤ 10.11.7 (semver) Unaffected: 11.2.0 Unaffected: 11.1.1 Unaffected: 11.0.6 Unaffected: 10.12.4 Unaffected: 10.11.8 |
Credits
Juho Forsén
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CVE-2025-13324 (GCVE-0-2025-13324)
Vulnerability from nvd – Published: 2025-12-17 18:14 – Updated: 2025-12-24 10:16
VLAI?
Title
Lack of Invalidation of Legacy Remote Cluster Invite Tokens After Confirmation
Summary
Mattermost versions 10.11.x <= 10.11.5, 11.0.x <= 11.0.4, 10.12.x <= 10.12.2 fail to invalidate remote cluster invite tokens when using the legacy (version 1) protocol or when the confirming party does not provide a refreshed token, which allows an attacker who has obtained an invite token to authenticate as the remote cluster and perform limited actions on shared channels even after the invitation has been legitimately confirmed.
Severity ?
CWE
- CWE-863 - Incorrect Authorization
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Mattermost | Mattermost |
Affected:
10.11.0 , ≤ 10.11.5
(semver)
Affected: 11.0.0 , ≤ 11.0.4 (semver) Affected: 10.12.0 , ≤ 10.12.2 (semver) Unaffected: 11.1.0 Unaffected: 10.11.6 Unaffected: 11.0.5 Unaffected: 10.12.3 |
Credits
daw10
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CVE-2025-12689 (GCVE-0-2025-12689)
Vulnerability from nvd – Published: 2025-12-17 18:14 – Updated: 2025-12-17 19:29
VLAI?
Title
DoS in Calls plugin via malformed UTF-8 in WebSocket request
Summary
Mattermost versions 11.0.x <= 11.0.4, 10.12.x <= 10.12.2, 10.11.x <= 10.11.6 fail to check WebSocket request field for proper UTF-8 format, which allows attacker to crash Calls plug-in via sending malformed request.
Severity ?
6.5 (Medium)
CWE
- CWE-1287 - Improper Validation of Specified Type of Input
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Mattermost | Mattermost |
Affected:
11.0.0 , ≤ 11.0.4
(semver)
Affected: 10.12.0 , ≤ 10.12.2 (semver) Affected: 10.11.0 , ≤ 10.11.6 (semver) Unaffected: 11.1.0 Unaffected: 11.0.5 Unaffected: 10.12.3 Unaffected: 10.11.7 |
Credits
National Security Agency
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CVE-2025-62690 (GCVE-0-2025-62690)
Vulnerability from nvd – Published: 2025-12-17 12:19 – Updated: 2025-12-17 14:45
VLAI?
Title
Open redirect in error page when link opened in new tab
Summary
Mattermost versions 10.11.x <= 10.11.4 fail to validate redirect URLs on the /error page, which allows an attacker to redirect a victim to a malicious site via a crafted link opened in a new tab.
Severity ?
CWE
- CWE-601 - CWE‑601: URL Redirection to Untrusted Site (“Open Redirect”)
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Mattermost | Mattermost |
Affected:
10.11.0 , ≤ 10.11.4
(semver)
Unaffected: 11.1.0 Unaffected: 10.11.5 |
Credits
Mario Puente
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CVE-2025-13352 (GCVE-0-2025-13352)
Vulnerability from nvd – Published: 2025-12-17 12:11 – Updated: 2025-12-17 16:48
VLAI?
Title
Mattermost GitHub Plugin allows unauthorized GitHub reactions via reaction forwarding hijacking
Summary
Mattermost versions 10.11.x <= 10.11.6 and Mattermost GitHub plugin versions <=2.4.0 fail to validate plugin bot identity in reaction forwarding which allows attackers to hijack the GitHub reaction feature to make users add reactions to arbitrary GitHub objects via crafted notification posts.
Severity ?
CWE
- CWE-1287 - Improper Validation of Specified Type of Input
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Mattermost | Mattermost |
Affected:
10.11.0 , ≤ 10.11.6
(semver)
Unaffected: 11.1.0 Unaffected: 10.11.7 |
Credits
Juho Forsén
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CVE-2025-62190 (GCVE-0-2025-62190)
Vulnerability from nvd – Published: 2025-12-17 12:07 – Updated: 2025-12-17 15:47
VLAI?
Title
CSRF Allows Call Initiation and Message Delivery
Summary
Mattermost versions 11.0.x <= 11.0.4, 10.12.x <= 10.12.2, 10.11.x <= 10.11.6 and Mattermost Calls versions <=1.10.0 fail to implement CSRF protection on the Calls widget page which allows an authenticated attacker to initiate calls and inject messages into channels or direct messages via a malicious webpage or crafted link
Severity ?
4.3 (Medium)
CWE
- CWE-352 - Cross-Site Request Forgery (CSRF)
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Mattermost | Mattermost |
Affected:
11.0.0 , ≤ 11.0.4
(semver)
Affected: 10.12.0 , ≤ 10.12.2 (semver) Affected: 10.11.0 , ≤ 10.11.6 (semver) Unaffected: 11.1.0 Unaffected: 11.0.5 Unaffected: 10.12.3 Unaffected: 10.11.7 |
Credits
DoyenSec
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CVE-2025-14435 (GCVE-0-2025-14435)
Vulnerability from cvelistv5 – Published: 2026-01-16 11:25 – Updated: 2026-01-16 14:09
VLAI?
Title
Application-Level DoS via infinite re-render loop in user profile handling
Summary
Mattermost versions 10.11.x <= 10.11.8, 11.1.x <= 11.1.1, 11.0.x <= 11.0.6 fail to prevent infinite re-renders on API errors which allows authenticated users to cause application-level DoS via triggering unbounded component re-render loops.
Severity ?
6.8 (Medium)
CWE
- CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Mattermost | Mattermost |
Affected:
10.11.0 , ≤ 10.11.8
(semver)
Affected: 11.1.0 , ≤ 11.1.1 (semver) Affected: 11.0.0 , ≤ 11.0.6 (semver) Unaffected: 11.2.0 Unaffected: 10.11.9 Unaffected: 11.1.2 Unaffected: 11.0.7 |
Credits
daw10
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CVE-2025-14822 (GCVE-0-2025-14822)
Vulnerability from cvelistv5 – Published: 2026-01-16 08:52 – Updated: 2026-01-16 13:00
VLAI?
Title
DoS from quadratic complexity in model.ParseHashtags
Summary
Mattermost versions 10.11.x <= 10.11.8 fail to validate input size before processing hashtags which allows an authenticated attacker to exhaust CPU resources via a single HTTP request containing a post with thousands space-separated tokens
Severity ?
CWE
- CWE-407 - Inefficient Algorithmic Complexity
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Mattermost | Mattermost |
Affected:
10.11.0 , ≤ 10.11.8
(semver)
Unaffected: 11.2.0 Unaffected: 10.11.9 |
Credits
CatenaCyber
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CVE-2025-64641 (GCVE-0-2025-64641)
Vulnerability from cvelistv5 – Published: 2025-12-24 08:02 – Updated: 2025-12-24 16:35
VLAI?
Title
Mattermost Jira plugin crafted action leaks Jira issue details
Summary
Mattermost versions 11.1.x <= 11.1.0, 11.0.x <= 11.0.5, 10.12.x <= 10.12.3, 10.11.x <= 10.11.7 fail to verify that post actions invoking /share-issue-publicly were created by the Jira plugin which allowed a malicious Mattermost user to exfiltrate Jira tickets when victim users interacted with affected posts
Severity ?
4.1 (Medium)
CWE
- CWE-863 - Incorrect Authorization
Assigner
References
| URL | Tags | ||||
|---|---|---|---|---|---|
|
|||||
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Mattermost | Mattermost |
Affected:
11.1.0 , ≤ 11.1.0
(semver)
Affected: 11.0.0 , ≤ 11.0.5 (semver) Affected: 10.12.0 , ≤ 10.12.3 (semver) Affected: 10.11.0 , ≤ 10.11.7 (semver) Unaffected: 11.2.0 Unaffected: 11.1.1 Unaffected: 11.0.6 Unaffected: 10.12.4 Unaffected: 10.11.8 |
Credits
Juho Forsén
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CVE-2025-13767 (GCVE-0-2025-13767)
Vulnerability from cvelistv5 – Published: 2025-12-24 08:01 – Updated: 2025-12-24 16:36
VLAI?
Title
Unauthorized Read Access to Private Channel Posts via Mattermost Jira Plugin
Summary
Mattermost versions 11.1.x <= 11.1.0, 11.0.x <= 11.0.5, 10.12.x <= 10.12.3, 10.11.x <= 10.11.7 fails to validate user channel membership when attaching Mattermost posts as comments to Jira issues, which allows an authenticated attacker with access to the Jira plugin to read post content and attachments from channels they do not have access to.
Severity ?
4.3 (Medium)
CWE
- CWE-863 - Incorrect Authorization
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Mattermost | Mattermost |
Affected:
11.1.0 , ≤ 11.1.0
(semver)
Affected: 11.0.0 , ≤ 11.0.5 (semver) Affected: 10.12.0 , ≤ 10.12.3 (semver) Affected: 10.11.0 , ≤ 10.11.7 (semver) Unaffected: 11.2.0 Unaffected: 11.1.1 Unaffected: 11.0.6 Unaffected: 10.12.4 Unaffected: 10.11.8 |
Credits
Juho Forsén
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CVE-2025-14273 (GCVE-0-2025-14273)
Vulnerability from cvelistv5 – Published: 2025-12-22 11:24 – Updated: 2025-12-22 12:59
VLAI?
Title
Mattermost Jira plugin user spoofing enables Jira request forgery.
Summary
Mattermost versions 11.1.x <= 11.1.0, 11.0.x <= 11.0.5, 10.12.x <= 10.12.3, 10.11.x <= 10.11.7 with the Jira plugin enabled and Mattermost Jira plugin versions <=4.4.0 fail to enforce authentication and issue-key path restrictions in the Jira plugin, which allows an unauthenticated attacker who knows a valid user ID to issue authenticated GET and POST requests to the Jira server via crafted plugin payloads that spoof the user ID and inject arbitrary issue key paths. Mattermost Advisory ID: MMSA-2025-00555
Severity ?
7.2 (High)
CWE
- CWE-303 - Incorrect Implementation of Authentication Algorithm
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Mattermost | Mattermost |
Affected:
11.1.0 , ≤ 11.1.0
(semver)
Affected: 11.0.0 , ≤ 11.0.5 (semver) Affected: 10.12.0 , ≤ 10.12.3 (semver) Affected: 10.11.0 , ≤ 10.11.7 (semver) Unaffected: 11.2.0 Unaffected: 11.1.1 Unaffected: 11.0.6 Unaffected: 10.12.4 Unaffected: 10.11.8 |
Credits
Juho Forsén
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CVE-2025-13324 (GCVE-0-2025-13324)
Vulnerability from cvelistv5 – Published: 2025-12-17 18:14 – Updated: 2025-12-24 10:16
VLAI?
Title
Lack of Invalidation of Legacy Remote Cluster Invite Tokens After Confirmation
Summary
Mattermost versions 10.11.x <= 10.11.5, 11.0.x <= 11.0.4, 10.12.x <= 10.12.2 fail to invalidate remote cluster invite tokens when using the legacy (version 1) protocol or when the confirming party does not provide a refreshed token, which allows an attacker who has obtained an invite token to authenticate as the remote cluster and perform limited actions on shared channels even after the invitation has been legitimately confirmed.
Severity ?
CWE
- CWE-863 - Incorrect Authorization
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Mattermost | Mattermost |
Affected:
10.11.0 , ≤ 10.11.5
(semver)
Affected: 11.0.0 , ≤ 11.0.4 (semver) Affected: 10.12.0 , ≤ 10.12.2 (semver) Unaffected: 11.1.0 Unaffected: 10.11.6 Unaffected: 11.0.5 Unaffected: 10.12.3 |
Credits
daw10
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CVE-2025-12689 (GCVE-0-2025-12689)
Vulnerability from cvelistv5 – Published: 2025-12-17 18:14 – Updated: 2025-12-17 19:29
VLAI?
Title
DoS in Calls plugin via malformed UTF-8 in WebSocket request
Summary
Mattermost versions 11.0.x <= 11.0.4, 10.12.x <= 10.12.2, 10.11.x <= 10.11.6 fail to check WebSocket request field for proper UTF-8 format, which allows attacker to crash Calls plug-in via sending malformed request.
Severity ?
6.5 (Medium)
CWE
- CWE-1287 - Improper Validation of Specified Type of Input
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Mattermost | Mattermost |
Affected:
11.0.0 , ≤ 11.0.4
(semver)
Affected: 10.12.0 , ≤ 10.12.2 (semver) Affected: 10.11.0 , ≤ 10.11.6 (semver) Unaffected: 11.1.0 Unaffected: 11.0.5 Unaffected: 10.12.3 Unaffected: 10.11.7 |
Credits
National Security Agency
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CVE-2025-62690 (GCVE-0-2025-62690)
Vulnerability from cvelistv5 – Published: 2025-12-17 12:19 – Updated: 2025-12-17 14:45
VLAI?
Title
Open redirect in error page when link opened in new tab
Summary
Mattermost versions 10.11.x <= 10.11.4 fail to validate redirect URLs on the /error page, which allows an attacker to redirect a victim to a malicious site via a crafted link opened in a new tab.
Severity ?
CWE
- CWE-601 - CWE‑601: URL Redirection to Untrusted Site (“Open Redirect”)
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Mattermost | Mattermost |
Affected:
10.11.0 , ≤ 10.11.4
(semver)
Unaffected: 11.1.0 Unaffected: 10.11.5 |
Credits
Mario Puente
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CVE-2025-13352 (GCVE-0-2025-13352)
Vulnerability from cvelistv5 – Published: 2025-12-17 12:11 – Updated: 2025-12-17 16:48
VLAI?
Title
Mattermost GitHub Plugin allows unauthorized GitHub reactions via reaction forwarding hijacking
Summary
Mattermost versions 10.11.x <= 10.11.6 and Mattermost GitHub plugin versions <=2.4.0 fail to validate plugin bot identity in reaction forwarding which allows attackers to hijack the GitHub reaction feature to make users add reactions to arbitrary GitHub objects via crafted notification posts.
Severity ?
CWE
- CWE-1287 - Improper Validation of Specified Type of Input
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Mattermost | Mattermost |
Affected:
10.11.0 , ≤ 10.11.6
(semver)
Unaffected: 11.1.0 Unaffected: 10.11.7 |
Credits
Juho Forsén
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CVE-2025-62190 (GCVE-0-2025-62190)
Vulnerability from cvelistv5 – Published: 2025-12-17 12:07 – Updated: 2025-12-17 15:47
VLAI?
Title
CSRF Allows Call Initiation and Message Delivery
Summary
Mattermost versions 11.0.x <= 11.0.4, 10.12.x <= 10.12.2, 10.11.x <= 10.11.6 and Mattermost Calls versions <=1.10.0 fail to implement CSRF protection on the Calls widget page which allows an authenticated attacker to initiate calls and inject messages into channels or direct messages via a malicious webpage or crafted link
Severity ?
4.3 (Medium)
CWE
- CWE-352 - Cross-Site Request Forgery (CSRF)
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Mattermost | Mattermost |
Affected:
11.0.0 , ≤ 11.0.4
(semver)
Affected: 10.12.0 , ≤ 10.12.2 (semver) Affected: 10.11.0 , ≤ 10.11.6 (semver) Unaffected: 11.1.0 Unaffected: 11.0.5 Unaffected: 10.12.3 Unaffected: 10.11.7 |
Credits
DoyenSec
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CVE-2025-13870 (GCVE-0-2025-13870)
Vulnerability from cvelistv5 – Published: 2025-12-02 09:28 – Updated: 2025-12-02 14:38
VLAI?
Title
Unauthorized access and subscription vulnerability in Boards
Summary
Mattermost versions 10.11.x <= 10.11.4, 10.5.x <= 10.5.12 fail to validate the user permission when accessing the files and subscribing to the block in Boards, which allows an authenticated user to access other board files and was able to subscribe to the block from other boards that the user does not have access to
Severity ?
CWE
- CWE-306 - Missing Authentication for Critical Function
Assigner
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Mattermost | Mattermost |
Affected:
10.11.0 , ≤ 10.11.4
(semver)
Affected: 10.5.0 , ≤ 10.5.12 (semver) Unaffected: 11.1.0 Unaffected: 10.11.5 Unaffected: 10.5.13 |
Credits
Doyensec
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FKIE_CVE-2025-64641
Vulnerability from fkie_nvd - Published: 2025-12-24 08:15 - Updated: 2025-12-31 18:55
Severity ?
4.1 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:N/A:N
4.1 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:N/A:N
4.1 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:N/A:N
Summary
Mattermost versions 11.1.x <= 11.1.0, 11.0.x <= 11.0.5, 10.12.x <= 10.12.3, 10.11.x <= 10.11.7 fail to verify that post actions invoking /share-issue-publicly were created by the Jira plugin which allowed a malicious Mattermost user to exfiltrate Jira tickets when victim users interacted with affected posts
References
| URL | Tags | ||
|---|---|---|---|
| responsibledisclosure@mattermost.com | https://mattermost.com/security-updates | Vendor Advisory |
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| mattermost | mattermost_server | * | |
| mattermost | mattermost_server | * | |
| mattermost | mattermost_server | * | |
| mattermost | mattermost_server | * |
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FKIE_CVE-2025-13767
Vulnerability from fkie_nvd - Published: 2025-12-24 08:15 - Updated: 2025-12-31 18:56
Severity ?
Summary
Mattermost versions 11.1.x <= 11.1.0, 11.0.x <= 11.0.5, 10.12.x <= 10.12.3, 10.11.x <= 10.11.7 fails to validate user channel membership when attaching Mattermost posts as comments to Jira issues, which allows an authenticated attacker with access to the Jira plugin to read post content and attachments from channels they do not have access to.
References
| URL | Tags | ||
|---|---|---|---|
| responsibledisclosure@mattermost.com | https://mattermost.com/security-updates | Vendor Advisory |
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| mattermost | mattermost_server | * | |
| mattermost | mattermost_server | * | |
| mattermost | mattermost_server | * | |
| mattermost | mattermost_server | * |
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FKIE_CVE-2025-14273
Vulnerability from fkie_nvd - Published: 2025-12-22 12:16 - Updated: 2025-12-29 18:47
Severity ?
7.2 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:L
8.3 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L
8.3 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L
Summary
Mattermost versions 11.1.x <= 11.1.0, 11.0.x <= 11.0.5, 10.12.x <= 10.12.3, 10.11.x <= 10.11.7 with the Jira plugin enabled and Mattermost Jira plugin versions <=4.4.0 fail to enforce authentication and issue-key path restrictions in the Jira plugin, which allows an unauthenticated attacker who knows a valid user ID to issue authenticated GET and POST requests to the Jira server via crafted plugin payloads that spoof the user ID and inject arbitrary issue key paths. Mattermost Advisory ID: MMSA-2025-00555
References
| URL | Tags | ||
|---|---|---|---|
| responsibledisclosure@mattermost.com | https://mattermost.com/security-updates | Vendor Advisory |
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| mattermost | mattermost_server | * | |
| mattermost | mattermost_server | * | |
| mattermost | mattermost_server | * | |
| mattermost | mattermost_server | * |
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FKIE_CVE-2025-13324
Vulnerability from fkie_nvd - Published: 2025-12-17 19:16 - Updated: 2025-12-29 18:46
Severity ?
Summary
Mattermost versions 10.11.x <= 10.11.5, 11.0.x <= 11.0.4, 10.12.x <= 10.12.2 fail to invalidate remote cluster invite tokens when using the legacy (version 1) protocol or when the confirming party does not provide a refreshed token, which allows an attacker who has obtained an invite token to authenticate as the remote cluster and perform limited actions on shared channels even after the invitation has been legitimately confirmed.
References
| URL | Tags | ||
|---|---|---|---|
| responsibledisclosure@mattermost.com | https://mattermost.com/security-updates | Vendor Advisory |
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| mattermost | mattermost_server | * | |
| mattermost | mattermost_server | * | |
| mattermost | mattermost_server | * |
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"id": "CVE-2025-13324",
"lastModified": "2025-12-29T18:46:13.530",
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FKIE_CVE-2025-12689
Vulnerability from fkie_nvd - Published: 2025-12-17 19:16 - Updated: 2025-12-29 18:44
Severity ?
Summary
Mattermost versions 11.0.x <= 11.0.4, 10.12.x <= 10.12.2, 10.11.x <= 10.11.6 fail to check WebSocket request field for proper UTF-8 format, which allows attacker to crash Calls plug-in via sending malformed request.
References
| URL | Tags | ||
|---|---|---|---|
| responsibledisclosure@mattermost.com | https://mattermost.com/security-updates | Vendor Advisory |
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| mattermost | mattermost_server | * | |
| mattermost | mattermost_server | * | |
| mattermost | mattermost_server | * |
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"id": "CVE-2025-12689",
"lastModified": "2025-12-29T18:44:33.540",
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FKIE_CVE-2025-62190
Vulnerability from fkie_nvd - Published: 2025-12-17 13:15 - Updated: 2025-12-29 18:51
Severity ?
Summary
Mattermost versions 11.0.x <= 11.0.4, 10.12.x <= 10.12.2, 10.11.x <= 10.11.6 and Mattermost Calls versions <=1.10.0 fail to implement CSRF protection on the Calls widget page which allows an authenticated attacker to initiate calls and inject messages into channels or direct messages via a malicious webpage or crafted link
References
| URL | Tags | ||
|---|---|---|---|
| responsibledisclosure@mattermost.com | https://mattermost.com/security-updates | Vendor Advisory |
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| mattermost | mattermost_server | * | |
| mattermost | mattermost_server | * | |
| mattermost | mattermost_server | * |
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FKIE_CVE-2025-62690
Vulnerability from fkie_nvd - Published: 2025-12-17 13:15 - Updated: 2025-12-29 18:55
Severity ?
3.1 (Low) - CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:L/A:N
6.1 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
6.1 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Summary
Mattermost versions 10.11.x <= 10.11.4 fail to validate redirect URLs on the /error page, which allows an attacker to redirect a victim to a malicious site via a crafted link opened in a new tab.
References
| URL | Tags | ||
|---|---|---|---|
| responsibledisclosure@mattermost.com | https://mattermost.com/security-updates | Vendor Advisory |
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| mattermost | mattermost_server | * |
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FKIE_CVE-2025-13352
Vulnerability from fkie_nvd - Published: 2025-12-17 13:15 - Updated: 2025-12-29 18:50
Severity ?
Summary
Mattermost versions 10.11.x <= 10.11.6 and Mattermost GitHub plugin versions <=2.4.0 fail to validate plugin bot identity in reaction forwarding which allows attackers to hijack the GitHub reaction feature to make users add reactions to arbitrary GitHub objects via crafted notification posts.
References
| URL | Tags | ||
|---|---|---|---|
| responsibledisclosure@mattermost.com | https://mattermost.com/security-updates | Vendor Advisory |
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| mattermost | mattermost_server | * |
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FKIE_CVE-2025-13870
Vulnerability from fkie_nvd - Published: 2025-12-02 10:16 - Updated: 2025-12-03 20:57
Severity ?
3.1 (Low) - CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
4.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
4.3 (Medium) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Summary
Mattermost versions 10.11.x <= 10.11.4, 10.5.x <= 10.5.12 fail to validate the user permission when accessing the files and subscribing to the block in Boards, which allows an authenticated user to access other board files and was able to subscribe to the block from other boards that the user does not have access to
References
| URL | Tags | ||
|---|---|---|---|
| responsibledisclosure@mattermost.com | https://mattermost.com/security-updates | Vendor Advisory |
Impacted products
| Vendor | Product | Version | |
|---|---|---|---|
| mattermost | mattermost_server | * | |
| mattermost | mattermost_server | * |
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