{"id":"CVE-2020-16266","aliases":["GHSA-4rrc-5vp6-m3f6"],"url":"https://o3.security/vulnerability/CVE-2020-16266","summary":"MantisBT XSS issue on the view_all_bug_page.php ","details":"An XSS issue was discovered in MantisBT before 2.24.2. Improper escaping on view_all_bug_page.php allows a remote attacker to inject arbitrary HTML into the page by saving it into a text Custom Field, leading to possible code execution in the browser of any user subsequently viewing the issue (if CSP settings allow it).","published":"2020-08-12T13:15:10.613Z","modified":"2026-08-07T15:11:52.361230Z","cvss":{"score":5.4,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N"},"epss":{"score":0.01276,"percentile":0.67272,"asOf":"2026-08-23"},"cisaKev":null,"exploitsKnown":1,"affectedPackages":[{"ecosystem":"Packagist","name":"mantisbt/mantisbt","fixedVersion":"2.24.2"}],"fix":{"url":"https://github.com/mantisbt/mantisbt/commit/9ef8f23a8119221d010251112b1255630a46d903","label":"mantisbt/mantisbt@9ef8f23"},"references":[{"type":"ADVISORY","url":"https://mantisbt.org/blog/archives/mantisbt/665"},{"type":"FIX","url":"https://mantisbt.org/bugs/view.php?id=27056"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2020-16266"},{"type":"WEB","url":"https://github.com/mantisbt/mantisbt/commit/9ef8f23a8119221d010251112b1255630a46d903"},{"type":"PACKAGE","url":"https://github.com/mantisbt/mantisbt"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-07T15:11:52.361230Z"}}