{"action":"Upgrade mantisbt/mantisbt to 2.28.2 or later.","affected":[{"fixed":"2.28.2","introduced":"2.11.0"}],"component":"mantisbt/mantisbt","cve_ids":["CVE-2026-40596"],"ecosystem":"Packagist","epss":0.00424,"exploited":false,"fixed_versions":["2.28.2"],"ghsa_id":"GHSA-j3v9-553h-x28j","id":"tcs_01M5KF45BZ2J4NR3PDHHC792M7","modified_at":"2026-09-10T03:51:05.993474329Z","published_at":"2026-05-11T19:34:38Z","references":["https://osv.dev/vulnerability/GHSA-j3v9-553h-x28j","https://github.com/mantisbt/mantisbt/security/advisories/GHSA-9c3j-xm6v-j7j3","https://github.com/mantisbt/mantisbt/security/advisories/GHSA-j3v9-553h-x28j","https://nvd.nist.gov/vuln/detail/CVE-2026-40596","https://github.com/mantisbt/mantisbt/commit/9e8409cdd979eba86ef532756fc47c1d8112d22d","https://github.com/mantisbt/mantisbt","https://mantisbt.org/bugs/view.php?id=37011","https://mantisbt.org/bugs/view.php?id=37016"],"severity":{"label":"high"},"sources":[{"source":"osv","source_id":"GHSA-j3v9-553h-x28j","url":"https://osv.dev/vulnerability/GHSA-j3v9-553h-x28j"}],"summary":"MantisBT is Vulnerable to XSS leading to account takeover via updating a user's font family preference"}