CVE-2023-49802: Mantisbt Linked Custom Fields

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

The LinkedCustomFields plugin for MantisBT allows users to link values between two custom fields, creating linked drop-downs. Prior to version 2.0.1, cross-site scripting in the MantisBT LinkedCustomFields plugin allows Javascript execution, when a crafted Custom Field is linked via the plugin and displayed when reporting a new Issue or editing an existing one. This issue is fixed in version 2.0.1. As a workaround, one may utilize MantisBT's default Content Security Policy, which blocks script execution.

Affected products

• Mantisbt Linked Custom Fields: before 2.0.1 (fixed in 2.0.1)

Published 2023-12-11. Last modified 2026-06-17.