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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
updated 1 month, 1 week ago by @LeSuisse Activity log
  • Created automatic suggestion 1 month, 1 week ago
  • @LeSuisse removed
    6 packages
    • mattermost
    • mattermostLatest
    • mattermost-desktop
    • python312Packages.mattermostdriver
    • python313Packages.mattermostdriver
    • python314Packages.mattermostdriver
    1 month, 1 week ago
  • @LeSuisse dismissed 1 month, 1 week 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
  • =<10.11.9
  • ==11.3.0
  • ==11.1.3
  • =<11.1.2
  • ==11.2.2
  • =<11.2.1
  • ==10.11.10 
Mattermost Jira plugin is not packaged in nixpkgs.

https://github.com/mattermost/mattermost-plugin-jira