CVE-2026-33548

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().

CVSS v3 6.1 MEDIUM

6.1^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://github.com/mantisbt/mantisbt/commit/f32787c14d4518476fe7f05f992dbfe6eaccd815	Patch
https://github.com/mantisbt/mantisbt/security/advisories/GHSA-73vx-49mv-v8w5	Patch Vendor Advisory

Configurations

Configuration 1 (hide)

cpe:2.3:a:mantisbt:mantisbt:2.28.0:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-03-23 20:16

Updated : 2026-03-25 13:55

NVD link : CVE-2026-33548

Mitre link : CVE-2026-33548

CVE.ORG link : CVE-2026-33548

JSON object : View

Products Affected

mantisbt

mantisbt

CWE

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

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