VULNERABILITY INTELLIGENCE
CVE-2025-0503
CVSS score3.1 LOW
EPSS probability0.25%
CISA KEVNot currently listed
Published2025-02-14
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
Description
Mattermost versions 9.11.x <= 9.11.6 fail to filter out DMs from the deleted channels endpoint which allows an attacker to infer user IDs and other metadata from deleted DMs if someone had manually marked DMs as deleted in the database.
Weakness classification
- responsibledisclosure@mattermost.com: CWE-754
Primary references
- responsibledisclosure@mattermost.com — Vendor Advisory