Kurz gesagt
- CVE-2026-33548 ist eine Schwachstelle (MITTEL (CVSS 6.1)) in mantisbt/mantisbt, mantisbt (mantisbt).
- Wahrscheinlichkeit einer Ausnutzung in den nächsten 30 Tagen (EPSS): 0.20%, höher als bei 9.8% aller Schwachstellen.
- Abhilfe: auf 2.28.2 oder neuer aktualisieren.
Description
Improper escaping of tag names retrieved from History in Timeline (my_view_page.php) allows an attacker to inject HTML and, if CSP settings permit, achieve execution of arbitrary JavaScript, when displaying a tag that has been renamed or deleted.
Impact
Cross-site scripting (XSS).
Patches
f32787c14d4518476fe7f05f992dbfe6eaccd815
Workarounds
- Edit offending History entries (using SQL)
- Wrap
$this->tag_name in a string_html_specialchars() call in IssueTagTimelineEvent::html()
Credits
MantisBT thanks Vishal Shukla for discovering and responsibly reporting the issue.
NVD description
Mantis Bug Tracker (MantisBT) is an open source issue tracker. In version 2.28.0, improper escaping of tag names retrieved from History in Timeline (my_view_page.php) allows an attacker to inject HTML and, if CSP settings permit, achieve execution of arbitrary JavaScript, when displaying a tag that has been renamed or deleted. Version 2.28.1 contains a patch. Workarounds include editing offending History entries (using SQL) and wrapping `$this->tag_name` in a string_html_specialchars() call in IssueTagTimelineEvent::html().
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