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CVE-2025-62425

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CVE-2025-62425

Published: Oct 16, 2025

Modified: Oct 16, 2025

PUBLISHED

CVSS v3.1

8.3

HIGH

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.

VendorProductVersions

element-hq

matrix-authentication-service

affected
>= 0.20.0, <= 1.4.0

Weaknesses (CWE)

CWE-620

CVSS v3.1 Details

CVSS v3.1 Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

High

Availability

High

References

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