{"id":"CVE-2025-56236","details":"FormCms v0.5.5 contains a stored cross-site scripting (XSS) vulnerability in the avatar upload feature. Authenticated users can upload .html files containing malicious JavaScript, which are accessible via a public URL. When a privileged user accesses the file, the script executes in their browser context.","aliases":["GHSA-4fxf-xgrm-8fcj"],"modified":"2026-04-10T05:30:10.159387Z","published":"2025-08-28T15:16:02.953Z","references":[{"type":"ADVISORY","url":"https://github.com/KKC73/me/blob/main/CVE-2025-56236/README.md"},{"type":"REPORT","url":"https://github.com/FormCms/FormCms/issues/27"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/formcms/formcms","events":[{"introduced":"760e4bc81af37eb54700aa3cd73749d87116ef72"},{"fixed":"9f197feb0002e192fb04c4712f8422464861e3c6"}],"database_specific":{"versions":[{"introduced":"0.5.5"},{"fixed":"0.5.7"}]}}],"versions":["v0.5.5","v0.5.6"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-56236.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"}]}