CVE-2021-33557: MantisBT allows XSS in manage_custom_field_edit_page.php

May 24, 2022 (updated May 29, 2025)

An XSS issue was discovered in manage_custom_field_edit_page.php in MantisBT before 2.25.2. Unescaped output of the return parameter allows an attacker to inject code into a hidden input field.

References

github.com/advisories/GHSA-52cx-vphc-jmjm
github.com/mantisbt/mantisbt
github.com/mantisbt/mantisbt/commit/03dd37221e636f8959b8cb9fbad84f38f9582356
mantisbt.org/blog/archives/mantisbt/699
mantisbt.org/bugs/view.php?id=28552
nvd.nist.gov/vuln/detail/CVE-2021-33557

Code Behaviors & Features

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