CVE-2026-73292: CWE-352: Cross-Site Request Forgery (CSRF) in semaphoreui semaphore
Semaphore UI is a web interface for managing DevOps tools. Prior to 2.18.21, the /api/users/{id}/password endpoint accepts a cross-site request using the authenticated user's semaphore session cookie without CSRF protection or current-password confirmation, allowing an unauthenticated attacker to change an administrator's or another user's password after user interaction. This issue is fixed in version 2.18.21.
AI Analysis
Technical Summary
Semaphore UI is a web interface for managing DevOps tools. Versions before 2.18.21 have a CSRF vulnerability in the /api/users/{id}/password endpoint. This endpoint accepts requests using the authenticated user's session cookie without implementing CSRF protection or requiring the current password. Consequently, an attacker can craft a cross-site request that, after user interaction, changes the password of an administrator or another user. This vulnerability is addressed in Semaphore UI version 2.18.21.
Potential Impact
An attacker can exploit this vulnerability to change the password of an administrator or any user by leveraging the victim's authenticated session, potentially leading to account takeover and unauthorized access. The CVSS score of 8.3 indicates high severity with high confidentiality and integrity impact and low attack complexity. Availability impact is low.
Mitigation Recommendations
Upgrade Semaphore UI to version 2.18.21 or later, where this CSRF vulnerability is fixed. No other mitigations are specified. Patch status is not explicitly stated in vendor advisories but the description confirms the issue is fixed in 2.18.21.
CVE-2026-73292: CWE-352: Cross-Site Request Forgery (CSRF) in semaphoreui semaphore
Description
Semaphore UI is a web interface for managing DevOps tools. Prior to 2.18.21, the /api/users/{id}/password endpoint accepts a cross-site request using the authenticated user's semaphore session cookie without CSRF protection or current-password confirmation, allowing an unauthenticated attacker to change an administrator's or another user's password after user interaction. This issue is fixed in version 2.18.21.
CVSS v3.1
Score 8.3high
Affected software
pkg:github/semaphoreui/semaphoreRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
Semaphore UI is a web interface for managing DevOps tools. Versions before 2.18.21 have a CSRF vulnerability in the /api/users/{id}/password endpoint. This endpoint accepts requests using the authenticated user's session cookie without implementing CSRF protection or requiring the current password. Consequently, an attacker can craft a cross-site request that, after user interaction, changes the password of an administrator or another user. This vulnerability is addressed in Semaphore UI version 2.18.21.
Potential Impact
An attacker can exploit this vulnerability to change the password of an administrator or any user by leveraging the victim's authenticated session, potentially leading to account takeover and unauthorized access. The CVSS score of 8.3 indicates high severity with high confidentiality and integrity impact and low attack complexity. Availability impact is low.
Mitigation Recommendations
Upgrade Semaphore UI to version 2.18.21 or later, where this CSRF vulnerability is fixed. No other mitigations are specified. Patch status is not explicitly stated in vendor advisories but the description confirms the issue is fixed in 2.18.21.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-08-11T19:42:11.450Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a7c97cebf8831d539c533d7
Added to database: 08/12/2026, 15:57:02 UTC
Last enriched: 08/12/2026, 16:11:44 UTC
Last updated: 08/12/2026, 17:11:52 UTC
Views: 4
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