CVE-2026-41897
MantisBT is Vulnerable to Reflected XSS in Rendering Dynamic Custom Textarea Field
EPSS 0.05%
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.
How to fix CVE-2026-41897
To remediate CVE-2026-41897, upgrade the affected package to a fixed version below.
- —upgrade to 2.28.2 or later
Is CVE-2026-41897 being exploited?
Low — EPSS is 0.0%, meaning exploitation activity has not been observed at scale.
Affected packages (1)
- >= 1.0.0, < 2.28.2
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 4.0 | — | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N |