CVE-2026-40598

Description

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. ### Impact Cross-site scripting (XSS). ### Patches - b1ebc57763f104eb5f541b7b4d1ce6948168abd9 ### Workarounds None ### Credits Thanks to siunam (Tang Cheuk Hei) for discovering and responsibly reporting the issue.

Affected packages (1)

• Packagist/mantisbt/mantisbtfrom 0, < 2.28.2

CVSS scores

References (4)

• PATCHhttps://github.com/mantisbt/mantisbt
• WEBhttps://github.com/mantisbt/mantisbt/commit/b1ebc57763f104eb5f541b7b4d1ce6948168abd9
• WEBhttps://github.com/mantisbt/mantisbt/security/advisories/GHSA-6jh4-47v2-4g37
• WEBhttps://mantisbt.org/bugs/view.php?id=37017