MantisBT is Vulnerable to Stored XSS in Saved-Filter Owner Column
Incorrect escaping of a saved filter's owner allows an attacker to inject arbitrary HTML on systems where $g_show_user_realname = ON. ### Impact Cross-site scripting (XSS). Note that By default, only users with *Manager* access level or above can save their filters publicly ### Patches - 44f490bcf20fd491c1b8f3fc9dd041d8c2a30010 ### Workarounds - Prevent display of users' real name (set `$g_ show_user_realname = OFF;` in configuration) - Restrict ability to store filters (set $`g_stored_query_create_threshold` / $`g_stored_query_create_shared_threshold` to `NOBODY` ### Credits Thanks to siunam (Tang Cheuk Hei) for discovering and responsibly reporting the issue.
describes (1)
Related CVEs.
| ID | severity | exploitable | ||
|---|---|---|---|---|
| CVE-2026-40607US | — | — | ||
Mantis Bug Tracker (MantisBT) is an open source issue tracker. In versions 2.11.0 through 2.28.1, a Stored XSS vulnerability is caused by incorrect escaping of a saved filter's own… | ||||
references
External citations — patches, advisories, analysis.
- https://github.com/mantisbt/mantisbtPACKAGE
- https://github.com/mantisbt/mantisbt/commit/44f490bcf20fd491c1b8f3fc9dd041d8c2a30010WEB
- https://github.com/mantisbt/mantisbt/security/advisories/GHSA-f633-865q-2mhhWEB
- https://mantisbt.org/bugs/view.php?id=37015WEB
- https://nvd.nist.gov/vuln/detail/CVE-2026-40607ADVISORY
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