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…
Published: 2026-10-03 · CVSS: 8.7 · CVSS 4.0
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 to write outside the media directory, and delete arbitrary files via DELETE /api/v0/media/[*:path].
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7