CVE-2020-35571: Mantisbt

Medium severity, CVSS 6.1. EPSS: 0.7% chance of exploitation in the next 30 days.

An issue was discovered in MantisBT through 2.24.3. In the helper_ensure_confirmed call in manage_custom_field_update.php, the custom field name is not sanitized. This may be problematic depending on CSP settings.

Affected products

• Mantisbt Mantisbt: up to and including 2.24.3

Published 2021-02-22. Last modified 2026-06-17.