VULNERABILITY INTELLIGENCE
CVE-2023-5331
CVSS score4.3 MEDIUM
EPSS probability0.38%
CISA KEVNot currently listed
Published2023-10-09
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Description
Mattermost fails to properly check the creator of an attached file when adding the file to a draft post, potentially exposing unauthorized file information.
Weakness classification
- CWE-862: Missing Authorization
Primary references
- responsibledisclosure@mattermost.com — Vendor Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Vendor Advisory