CVE-2026-105123

The W (vincent-peugnet/wcms) content management system, version through 3.18.0 , is vulnerable to Remote Code Execution (RCE) and Arbitrary File Write via the Media Upload API. The root cause is an unvalidated path in the POST /api/v0/media/upload/[*:path] endpoint. Authenticated editors can expl...

CVE-2026-105123 W (wcms) through 3.18.0 RCE and Arbitrary File Write via Media Upload API

W vincent-peugnet/wcms through 3.18.0 contains a remote code execution vulnerability that allows authenticated editors to write arbitrary files by abusing the unvalidated path in POST /api/v0/media/upload/:path. Attackers can upload .php files executed by the web server, use encoded ../ sequences...