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Untriaged
Permalink CVE-2026-27659
4.6 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): LOW
  • Integrity impact (I): LOW
  • Availability impact (A): NONE
created 2 weeks, 6 days ago
CSRF vulnerability in UpdateAccessControlPolicyActiveStatus endpoint

Mattermost versions 11.2.x <= 11.2.2, 10.11.x <= 10.11.10, 11.4.x <= 11.4.0, 11.3.x <= 11.3.1 fail to properly validate CSRF tokens in the /api/v4/access_control_policies/{policy_id}/activate endpoint, which allows an attacker to trick an admin into changing access control policy active status via a crafted request.. Mattermost Advisory ID: MMSA-2026-00578

References

Affected products

Mattermost
  • =<11.2.2
  • =<10.11.10
  • =<11.3.1
  • ==11.5.0
  • =<11.4.0
  • ==10.11.11
  • ==11.4.1
  • ==11.2.3
  • ==11.3.2

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