CVE-2026-40598

MantisBT has Potential Referer-Based Reflected HTML Injection / XSS in Tag Update Page

Published: May 22, 2026Updated: Jul 23, 2026 Sources: CVE List NVDCWE-79

N/ACVSS

NVD MITRE

Description

Mantis Bug Tracker (MantisBT) is an open source issue tracker. In versions 2.28.1 and below, improper escaping of the redirection page (retrieved from the request's Referer header) allows an attacker to inject HTML. While this is generally not directly actionable as modern browsers will URL-encode special characters, on some specific server configurations this could poison the cache, leading to cross-site scripting. This issue has been fixed in version 2.28.2.

No summary for this CVE yet.

Weaknesses

CWE-79

Affected Products

mantisbt

oss-projectaka mantis bt

mantisbtOn-premWeb App

Enterprise Software / itsm-monitoring

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

2 techniques

Execution

Initial Access

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References

https://github.com/mantisbt/mantisbt/security/advisories/GHSA-6jh4-47v2-4g37

github.com

https://github.com/mantisbt/mantisbt/commit/b1ebc57763f104eb5f541b7b4d1ce6948168abd9

github.com

https://mantisbt.org/bugs/view.php?id=37017

mantisbt.org

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