CVE-2025-36530 — Import Path Traversal Enables Unauthorized Unsigned Plugin Installation
Mattermost versions 10.9.x <= 10.9.1, 10.8.x <= 10.8.3, 10.5.x <= 10.5.8, 9.11.x <= 9.11.17 fail to properly validate file paths during plugin import operations which allows res…
Published: 2025-08-21 · CVSS: 6.8 · CVSS 3.1
Mattermost versions 10.9.x <= 10.9.1, 10.8.x <= 10.8.3, 10.5.x <= 10.5.8, 9.11.x <= 9.11.17 fail to properly validate file paths during plugin import operations which allows restricted admin users to install unauthorized custom plugins via path traversal in the import functionality, bypassing plugin signature enforcement and marketplace restrictions.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7