CVE-2020-25288: Mantisbt

Medium severity, CVSS 4.8. EPSS: 1.5% chance of exploitation in the next 30 days.

An issue was discovered in MantisBT before 2.24.3. When editing an Issue in a Project where a Custom Field with a crafted Regular Expression property is used, improper escaping of the corresponding form input's pattern attribute allows HTML injection and, if CSP settings permit, execution of arbitrary JavaScript.

Affected products

• Mantisbt Mantisbt: before 2.24.3 (fixed in 2.24.3)

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