{"id":"CVE-2019-15539","aliases":["GHSA-p495-jrpq-p66g"],"url":"https://o3.security/vulnerability/CVE-2019-15539","summary":"MantisBT XSS when uploading an attachment","details":"The proj_doc_edit_page.php Project Documentation feature in MantisBT before 2.21.3 has a stored cross-site scripting (XSS) vulnerability, allowing execution of arbitrary code (if CSP settings permit it) after uploading an attachment with a crafted filename. The code is executed when editing the document's page.","published":"2020-03-19T19:15:11.693Z","modified":"2026-08-07T15:18:02.848642Z","cvss":{"score":6.1,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Packagist","name":"mantisbt/mantisbt","fixedVersion":"2.21.3"}],"fix":{"url":"https://github.com/mantisbt/mantisbt/commit/bd094dede74ff6e313e286e949e2387233a96eea","label":"mantisbt/mantisbt@bd094de"},"references":[{"type":"REPORT","url":"https://mantisbt.org/bugs/view.php?id=26078"},{"type":"FIX","url":"https://github.com/mantisbt/mantisbt/commit/bd094dede74ff6e313e286e949e2387233a96eea"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-07T15:18:02.848642Z"}}