CVE-2019-15539: MantisBT XSS when uploading an attachment

May 24, 2022 (updated May 29, 2025)

The proj_doc_edit_page.php Project Documentation feature in MantisBT before 2.21.3 has a stored cross-site scripting (XSS) vulnerability, allowing execution of arbitrary code (if CSP settings permit it) after uploading an attachment with a crafted filename. The code is executed when editing the document’s page.

References

github.com/advisories/GHSA-p495-jrpq-p66g
github.com/mantisbt/mantisbt
github.com/mantisbt/mantisbt/commit/bd094dede74ff6e313e286e949e2387233a96eea
mantisbt.org/bugs/view.php?id=26078
nvd.nist.gov/vuln/detail/CVE-2019-15539

Code Behaviors & Features

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