CVE-2026-40598 — MantisBT has Potential Referer-Based Reflected HTML Injection / XSS in Tag Update Page
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 head…
Published: 2026-05-22 · CVSS: 6.9 · CVSS 4.0
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7