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Permalink CVE-2025-13821
5.7 MEDIUM
  • CVSS version: 3.1
  • Attack vector (AV): NETWORK
  • Attack complexity (AC): LOW
  • Privileges required (PR): LOW
  • User interaction (UI): REQUIRED
  • Scope (S): UNCHANGED
  • Confidentiality impact (C): HIGH
  • Integrity impact (I): NONE
  • Availability impact (A): NONE
created 2 months ago
User profile update exposes password hash and MFA secrets

Mattermost versions 11.1.x <= 11.1.2, 10.11.x <= 10.11.9, 11.2.x <= 11.2.1 fail to sanitize sensitive data in WebSocket messages which allows authenticated users to exfiltrate password hashes and MFA secrets via profile nickname updates or email verification events. Mattermost Advisory ID: MMSA-2025-00560

References

Affected products

Mattermost
  • =<11.2.1
  • ==11.3.0
  • =<11.1.2
  • ==11.1.3
  • ==11.2.2
  • ==10.11.10
  • =<10.11.9

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