Vulnerability Description
MAS (Matrix Authentication Service) is a user management and authentication service for Matrix homeservers, written and maintained by Element. A logic flaw in matrix-authentication-service 0.20.0 through 1.4.0 allows an attacker with access to an authenticated MAS session to perform sensitive operations without entering the current password. These include changing the current password, adding or removing an e-mail address and deactivating the account. The vulnerability only affects instances which have the local password database feature enabled (passwords section in the config). Patched in matrix-authentication-service 1.4.1.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- https://github.com/element-hq/matrix-authentication-service/commit/bce99edb6177b
- https://github.com/element-hq/matrix-authentication-service/security/advisories/
FAQ
What is CVE-2025-62425?
CVE-2025-62425 is a vulnerability with a CVSS score of 8.3 (HIGH). MAS (Matrix Authentication Service) is a user management and authentication service for Matrix homeservers, written and maintained by Element. A logic flaw in matrix-authentication-service 0.20.0 thro...
How severe is CVE-2025-62425?
CVE-2025-62425 has been rated HIGH with a CVSS base score of 8.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2025-62425?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.