{"id":"GHSA-j7v9-f46r-2rp4","aliases":["CVE-2026-41897"],"title":"MantisBT is Vulnerable to Reflected XSS in Rendering Dynamic Custom Textarea Field","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.\n\n### Impact\nCross-site scripting (XSS)\n\n### Patches\n- c885af13f0b8596714ffe11df757c09f35fbd8f4\n\n### Workarounds\nNone\n\n### Credits\n\nThanks to siunam (Tang Cheuk Hei) for discovering and responsibly reporting the issue.","severity":"medium","score":5.3,"published":"2026-05-11T19:39:22.000Z","modified":"2026-09-10T03:50:47.202Z","withdrawn":false,"knownExploited":false,"affected":[{"ecosystem":"Packagist","name":"mantisbt/mantisbt","ranges":[{"events":[{"introduced":"1.0.0"},{"fixed":"2.28.2"}],"type":"ECOSYSTEM"}],"versions":["2.10.0","2.10.1","2.11.0","2.11.1","2.12.0","2.12.1","2.12.2","2.13.0","2.13.1","2.13.2","2.14.0","2.15.0","2.15.1","2.16.0","2.16.1","2.17.0","2.17.1","2.17.2","2.18.0","2.18.1","2.19.0","2.19.1","2.20.0","2.20.1","2.21.0","2.21.1","2.21.2","2.21.3","2.22.0","2.22.1","2.22.2","2.23.0","2.23.1","2.24.0","2.24.1","2.24.2","2.24.3","2.24.4","2.24.5","2.25.0","2.25.1","2.25.2","2.25.3","2.25.4","2.25.5","2.25.6","2.25.7","2.25.8","2.26.0","2.26.1","2.26.2","2.26.3","2.26.4","2.27.0","2.27.1","2.27.2","2.27.3","2.28.0","2.28.1","2.3.0","2.3.1","2.3.2","2.3.3","2.4.0","2.4.1","2.4.2","2.5.0","2.5.1","2.5.2","2.6.0","2.7.0","2.7.1","2.8.0","2.8.1","2.9.0","2.9.1"],"fixed":["2.28.2"]}],"references":["https://github.com/mantisbt/mantisbt/security/advisories/GHSA-j7v9-f46r-2rp4","https://nvd.nist.gov/vuln/detail/CVE-2026-41897","https://github.com/mantisbt/mantisbt/commit/c885af13f0b8596714ffe11df757c09f35fbd8f4","https://github.com/mantisbt/mantisbt","https://mantisbt.org/bugs/view.php?id=37013"],"sources":[{"name":"OSV","id":"GHSA-j7v9-f46r-2rp4","modified":"2026-09-10T03:50:47.202389672Z","url":"https://osv.dev/vulnerability/GHSA-j7v9-f46r-2rp4"}],"assessments":[{"source":"OSV","vector":"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","score":5.3}]}