Common Weakness Enumeration

CWE-639

Allowed

Authorization Bypass Through User-Controlled Key

Abstraction: Base · Status: Incomplete

The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data.

3196 vulnerabilities reference this CWE, most recent first.

CVE-2026-58410 (GCVE-0-2026-58410)

Vulnerability from cvelistv5 – Published: 2026-07-13 20:26 – Updated: 2026-07-14 13:07
VLAI
Title
ChurchCRM: Improper object-level authorization allows low-privileged users to read and modify other families’ records
Summary
ChurchCRM is an open-source church management system. Prior to version 7.4.0, there was an authorization flaw in the family-scoped endpoints which allowed low-privileged users to read and modify other families’ records. An authenticated non-admin user with EditSelf access can supply another family’s `familyId` and access records outside their own family scope. The backend trusts the attacker-controlled `familyId` and loads the corresponding family entity by ID without verifying that the requested family belongs to the current user. If the same user also has Notes permission, they can create notes on another family’s record. This breaks the intended EditSelf scope and allows access to unrelated congregation records. This issue has been fixed in version 7.4.0.
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-639 - Authorization Bypass Through User-Controlled Key
  • CWE-862 - Missing Authorization
Assigner
References
Impacted products
Vendor Product Version
ChurchCRM CRM Affected: < 7.4.0
Create a notification for this product.
Show details on NVD website

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CVE-2026-57956 (GCVE-0-2026-57956)

Vulnerability from cvelistv5 – Published: 2026-06-29 17:22 – Updated: 2026-07-14 21:34 X_Open Source
VLAI
Title
SigNoz 0.130.1 - Cross-Organization Insecure Direct Object Reference in Alert Rules
Summary
SigNoz through 0.130.1 contains a broken access control vulnerability that allows authenticated users to access other organizations' alert rules by supplying a target rule UUID, as the alert rule store predicates fail to filter by organization ID. Attackers can read, edit, and delete alert rules belonging to other organizations by exploiting the missing tenant isolation check, bypassing multi-tenant access controls.
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
Impacted products
Vendor Product Version
SigNoz signoz Affected: 0 , ≤ 0.130.1 (semver)
Create a notification for this product.
Date Public
2026-06-23 00:00
Credits
George Chen
Show details on NVD website

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CVE-2026-57945 (GCVE-0-2026-57945)

Vulnerability from cvelistv5 – Published: 2026-06-29 17:18 – Updated: 2026-07-14 21:34 X_Open Source
VLAI
Title
PhotoPrism - Unauthorized User Profile Modification via PUT /api/v1/users/{uid} Endpoint
Summary
PhotoPrism before 260601-a7d098548 contains a broken access control vulnerability that allows authenticated non-admin users to modify other users' profile information by sending requests to arbitrary user endpoints. Attackers can exploit the missing session-to-user identifier validation in the PUT users API endpoint to overwrite another user's profile details without authorization.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
Impacted products
Vendor Product Version
photoprism photoprism Affected: 0 , < 260601-a7d098548 (custom)
Create a notification for this product.
Date Public
2026-05-26 00:00
Credits
George Chen
Show details on NVD website

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CVE-2026-57943 (GCVE-0-2026-57943)

Vulnerability from cvelistv5 – Published: 2026-06-29 17:17 – Updated: 2026-07-14 21:34 X_Open Source
VLAI
Title
LibrePhotos < 1.0.0 - Insecure Direct Object Reference in SetPhotosShared Endpoint
Summary
LibrePhotos before 1.0.0 contains a broken object level authorization vulnerability in the SetPhotosShared endpoint that allows authenticated users to grant themselves access to other users' private photos by bypassing ownership validation. Attackers can manipulate shared_to relations without proper owner checks to read arbitrary private photos belonging to other users.
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
Impacted products
Vendor Product Version
LibrePhotos librephotos Affected: 0 , < 1.0.0 (semver)
Create a notification for this product.
Date Public
2026-06-13 00:00
Credits
George Chen
Show details on NVD website

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CVE-2026-57870 (GCVE-0-2026-57870)

Vulnerability from cvelistv5 – Published: 2026-07-07 05:28 – Updated: 2026-07-07 13:33
VLAI
Summary
Broken object-level access control on the Template API in MicroRealEstate allows attackers to retrieve document templates used by other organizations without authorization. This issue affects MicroRealEstate: through 1.0.0-alpha3.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-639 - Authorization bypass through User-Controlled key
Assigner
TML
Impacted products
Vendor Product Version
MicroRealEstate MicroRealEstate Affected: 0 , ≤ 1.0.0-alpha3 (custom)
Create a notification for this product.
Credits
Jake Cleland
Show details on NVD website

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CVE-2026-57869 (GCVE-0-2026-57869)

Vulnerability from cvelistv5 – Published: 2026-07-07 05:24 – Updated: 2026-07-07 13:32
VLAI
Summary
Broken object-level access controls and the use of a deterministic pattern during random ID generation in MicroRealEstate allows attackers to access documents uploaded by landlords or tenants without authorization. This issue affects MicroRealEstate: through 1.0.0-alpha3.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-639 - Authorization bypass through User-Controlled key
  • CWE-1241 - Use of predictable algorithm in random number generator
Assigner
TML
Impacted products
Vendor Product Version
MicroRealEstate MicroRealEstate Affected: 0 , ≤ 1.0.0-alpha3 (custom)
Create a notification for this product.
Credits
Jake Cleland
Show details on NVD website

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CVE-2026-57868 (GCVE-0-2026-57868)

Vulnerability from cvelistv5 – Published: 2026-07-07 05:18 – Updated: 2026-07-07 13:31
VLAI
Summary
MicroRealEstate is affected by broken object-level access controls in PDF generator functionality. This issue affects MicroRealEstate: through 1.0.0-alpha3.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-639 - Authorization bypass through User-Controlled key
Assigner
TML
Impacted products
Vendor Product Version
MicroRealEstate MicroRealEstate Affected: 0 , ≤ 1.0.0-alpha3 (custom)
Create a notification for this product.
Credits
Jake Cleland
Show details on NVD website

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CVE-2026-57694 (GCVE-0-2026-57694)

Vulnerability from cvelistv5 – Published: 2026-07-13 08:41 – Updated: 2026-07-13 13:41
VLAI
Title
WordPress Tutor LMS plugin <= 3.9.13 - Insecure Direct Object References (IDOR) vulnerability
Summary
Authorization Bypass Through User-Controlled Key vulnerability in Themeum Tutor LMS tutor allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Tutor LMS: from n/a through <= 3.9.13.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
Impacted products
Vendor Product Version
Themeum Tutor LMS Affected: 0 , ≤ 3.9.13 (custom)
Create a notification for this product.
Date Public
2026-07-13 10:37
Credits
TristanInSec | Patchstack Bug Bounty Program
Show details on NVD website

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CVE-2026-57680 (GCVE-0-2026-57680)

Vulnerability from cvelistv5 – Published: 2026-07-02 11:15 – Updated: 2026-07-02 13:46
VLAI
Title
WordPress Kirki plugin <= 6.0.11 - Insecure Direct Object References (IDOR) vulnerability
Summary
Unauthenticated Insecure Direct Object References (IDOR) in Kirki <= 6.0.11 versions.
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
Impacted products
Vendor Product Version
Themeum Kirki Affected: n/a , ≤ 6.0.11 (custom)
Create a notification for this product.
Credits
VanTastic | Patchstack Bug Bounty Program
Show details on NVD website

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CVE-2026-57676 (GCVE-0-2026-57676)

Vulnerability from cvelistv5 – Published: 2026-06-29 08:19 – Updated: 2026-07-08 19:42 X_Open Source
VLAI
Title
WordPress Simple User Avatar plugin <= 4.9 - Insecure Direct Object References (IDOR) vulnerability
Summary
Authorization Bypass Through User-Controlled Key vulnerability in Matteo Manna Simple User Avatar allows Exploiting Incorrectly Configured Access Control Security Levels. This issue affects Simple User Avatar: from n/a through 4.9.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
Impacted products
Vendor Product Version
Matteo Manna Simple User Avatar Affected: n/a , ≤ 4.9 (custom)
Create a notification for this product.
Credits
Ananda Dhakal | Patchstack
Show details on NVD website

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Mitigation
Architecture and Design

For each and every data access, ensure that the user has sufficient privilege to access the record that is being requested.

Mitigation
Architecture and Design Implementation

Make sure that the key that is used in the lookup of a specific user's record is not controllable externally by the user or that any tampering can be detected.

Mitigation
Architecture and Design

Use encryption in order to make it more difficult to guess other legitimate values of the key or associate a digital signature with the key so that the server can verify that there has been no tampering.

No CAPEC attack patterns related to this CWE.