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Untriaged
Permalink CVE-2026-22892
4.3 MEDIUM
  • CVSS version: 3.1
  • Attack vector (AV): NETWORK
  • Attack complexity (AC): LOW
  • Privileges required (PR): LOW
  • User interaction (UI): NONE
  • Scope (S): UNCHANGED
  • Confidentiality impact (C): LOW
  • Integrity impact (I): NONE
  • Availability impact (A): NONE
created 2 months ago
Insufficient Authorization in Mattermost Jira Plugin Allows Unauthorized Access to Post Attachments

Mattermost versions 11.1.x <= 11.1.2, 10.11.x <= 10.11.9, 11.2.x <= 11.2.1 fail to validate user permissions when creating Jira issues from Mattermost posts, which allows an authenticated attacker with access to the Jira plugin to read post content and attachments from channels they do not have access to via the /create-issue API endpoint by providing the post ID of an inaccessible post.. Mattermost Advisory ID: MMSA-2025-00550

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

Matching in nixpkgs

pkgs.mattermost

Mattermost is an open source platform for secure collaboration across the entire software development lifecycle

pkgs.mattermostLatest

Mattermost is an open source platform for secure collaboration across the entire software development lifecycle

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