CVE-2020-25830: Mantisbt

Medium severity, CVSS 4.8. EPSS: 1.7% chance of exploitation in the next 30 days.

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.

Affected products

• Mantisbt Mantisbt: before 2.24.3 (fixed in 2.24.3)

Published 2020-09-30. Last modified 2026-06-17.