MantisBT <=2.28.1: filter_target HTML injection via return_dynamic_filters.php
CVE-2026-41897 Published on May 28, 2026
MantisBT: Reflected XSS in Rendering Dynamic Custom Textarea Field
Mantis Bug Tracker (MantisBT) is an open source issue tracker. From 1.0.0 to 2.28.1, lack of validation of filter_target parameter on return_dynamic_filters.php (normally used as an AJAX in View Issues Page) allows an attacker to inject arbitrary HTML if the target is a TEXTAREA custom field. This vulnerability is fixed in 2.28.2.
Weakness Type
What is a XSS Vulnerability?
The software does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.
CVE-2026-41897 has been classified to as a XSS vulnerability or weakness.
Products Associated with CVE-2026-41897
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Affected Versions
mantisbt Version >= 1.0.0, < 2.28.2 is affected by CVE-2026-41897Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.