Medium severity6.1NVD Advisory· Published Jun 17, 2021· Updated Jun 17, 2026
CVE-2021-33557
CVE-2021-33557
Description
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
mantisbt/mantisbtPackagist | < 2.25.2 | 2.25.2 |
Affected products
3- MantisBT/MantisBTdescription
Patches
Vulnerability mechanics
References
5- mantisbt.org/bugs/view.phpnvdExploitVendor AdvisoryWEB
- github.com/advisories/GHSA-52cx-vphc-jmjmghsaADVISORY
- mantisbt.org/blog/archives/mantisbt/699nvdRelease NotesVendor AdvisoryWEB
- nvd.nist.gov/vuln/detail/CVE-2021-33557ghsaADVISORY
- github.com/mantisbt/mantisbt/commit/03dd37221e636f8959b8cb9fbad84f38f9582356ghsaWEB
News mentions
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