Kurz gesagt
- CVE-2026-33517 ist eine Schwachstelle (MITTEL (CVSS 6.1)) in mantisbt/mantisbt, mantisbt (mantisbt).
- Wahrscheinlichkeit einer Ausnutzung in den nächsten 30 Tagen (EPSS): 0.25%, höher als bei 16.1% aller Schwachstellen.
- Abhilfe: auf 2.28.1 oder neuer aktualisieren.
Description
Improper escaping of Tag name when deleting it in tag_delete.php allows an attacker to inject HTML and, if CSP settings permit, achieve execution of arbitrary JavaScript.
Impact
Cross-site scripting (XSS).
Patches
80990f43153167c73f11eb4b2bc7108d0c3d6b46
Workarounds
- Revert commit d6890320752ecf37bd74d11fe14fe7dc12335be9
- Manually edit language files to remove the sprintf placeholder
%1$s from $s_tag_delete_message string, for example with sed -r -i '/tag_delete_message/s/.%1\$s.//' -- lang/
Credits
MantisBT hanks Vishal Shukla for discovering and responsibly reporting the issue.
NVD description
Mantis Bug Tracker (MantisBT) is an open source issue tracker. In version 2.28.0, when deleting a Tag (tag_delete.php), improper escaping of its name when displaying the confirmation message allows an attacker to inject HTML and, if CSP settings permit, achieve execution of arbitrary JavaScript. Version 2.28.1 fixes the issue. Workarounds include reverting commit d6890320752ecf37bd74d11fe14fe7dc12335be9 and/or manually editing language files to remove the sprintf placeholder `%1$s` from `$s_tag_delete_message` string.
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