CVE-2026-33548

MEDIUM

6.1

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().

CVE Details

CVSS v3.1 Score6.1

SeverityMEDIUM

CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Attack VectorNETWORK

ComplexityLOW

Privileges RequiredNONE

User InteractionREQUIRED

Published3/23/2026

Last Modified3/25/2026

Sourcenvd

Honeypot Sightings0

Affected Products

mantisbt:mantisbt

Weaknesses (CWE)

CWE-79

References

https://github.com/mantisbt/mantisbt/commit/f32787c14d4518476fe7f05f992dbfe6eaccd815(security-advisories@github.com)

https://github.com/mantisbt/mantisbt/security/advisories/GHSA-73vx-49mv-v8w5(security-advisories@github.com)

IOC Correlations

No correlations recorded

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