In short
- CVE-2026-41897 is a MEDIUM (CVSS 5.3) vulnerability affecting mantisbt/mantisbt.
- Chance of exploitation in the next 30 days (EPSS): 0.28%, higher than 20.7% of all vulnerabilities.
- Fix: update to 2.28.2 or later.
| Package | Affected versions | Patched versions |
|---|
| mantisbt/mantisbt Packagist | ≥ 1.0.0, < 2.28.2
| 2.28.2
|
Description
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.
Impact
Cross-site scripting (XSS)
Patches
- c885af13f0b8596714ffe11df757c09f35fbd8f4
Workarounds
None
Credits
Thanks to siunam (Tang Cheuk Hei) for discovering and responsibly reporting the issue.
NVD description
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.
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