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CVE PROGRAM SOURCE RECORD4.3 Medium

CVE-2025-20033

DoS via custom post type for sysconsole plugin readers

Description

Mattermost versions 10.2.0, 9.11.x <= 9.11.5, 10.0.x <= 10.0.3, 10.1.x <= 10.1.3 fail to properly validate post types, which allows attackers to deny service to users with the sysconsole_read_plugins permission via creating a post with the custom_pl_notification type and specific props.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Mattermost Mattermost

Default version status: unaffected

  • 10.2.0affected
  • 9.11.0 to ≤ 9.11.5affected
  • 10.0.0 to ≤ 10.0.3affected
  • 10.1.0 to ≤ 10.1.3affected
  • 10.3.0unaffected
  • 10.2.1unaffected
  • 9.11.6unaffected
  • 10.0.4unaffected
  • 10.1.4unaffected

References