VULNERABILITY INTELLIGENCE

CVE-2026-3524

CVSS score8.3 HIGH
EPSS probability0.38%
CISA KEVNot currently listed
Published2026-04-06
Last modified2026-08-06
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Description

Mattermost Plugin Legal Hold versions <=1.1.4 fail to halt request processing after a failed authorization check in ServeHTTP which allows an authenticated attacker to access, create, download, and delete legal hold data via crafted API requests to the plugin's endpoints. Mattermost Advisory ID: MMSA-2026-00621

Weakness classification

  • CWE-862: Missing Authorization

Primary references