{"id":"CVE-2020-25830","aliases":["GHSA-2pm7-q8pc-xhvq"],"url":"https://o3.security/vulnerability/CVE-2020-25830","summary":"MantisBT HTML Injection vulnerability","details":"An issue was discovered in MantisBT before 2.24.3. Improper escaping of a custom field's name allows an attacker to inject HTML and, if CSP settings permit, achieve execution of arbitrary JavaScript when attempting to update said custom field via bug_actiongroup_page.php.","published":"2020-09-30T21:15:13.293Z","modified":"2026-08-07T15:12:15.609466Z","cvss":{"score":4.8,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:L/A:N"},"epss":{"score":0.01682,"percentile":0.74861,"asOf":"2026-08-13"},"cisaKev":null,"exploitsKnown":1,"affectedPackages":[{"ecosystem":"Packagist","name":"mantisbt/mantisbt","fixedVersion":"2.24.3"}],"fix":{"url":"http://github.com/mantisbt/mantisbt/commit/8c6f4d8859785b67fb80ac65100ac5259ed9237d","label":"mantisbt/mantisbt@8c6f4d8"},"references":[{"type":"FIX","url":"http://github.com/mantisbt/mantisbt/commit/8c6f4d8859785b67fb80ac65100ac5259ed9237d"},{"type":"FIX","url":"https://mantisbt.org/bugs/view.php?id=27304"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2020-25830"},{"type":"PACKAGE","url":"https://github.com/mantisbt/mantisbt"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-07T15:12:15.609466Z"}}