CVE-2026-33517

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.

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/80990f43153167c73f11eb4b2bc7108d0c3d6b46	Patch
https://github.com/mantisbt/mantisbt/commit/d6890320752ecf37bd74d11fe14fe7dc12335be9	Patch
https://github.com/mantisbt/mantisbt/security/advisories/GHSA-fh48-f69w-7vmp	Patch Vendor Advisory Mitigation

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 13:58

NVD link : CVE-2026-33517

Mitre link : CVE-2026-33517

CVE.ORG link : CVE-2026-33517

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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