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MEDIUM severity

CVE-2022-33910 — mantisbt

MEDIUMFix: mantisbt/mantisbt@2667621

CVE-2022-33910 is a medium-severity (CVSS 5.4) Cross-site Scripting (XSS) vulnerability in mantisbt/mantisbt. 2 public exploit or proof-of-concept references are indexed, so weaponization risk is real. A fix is available for mantisbt/mantisbt — see the affected versions and patch details below.

MantisBT XSS through crafted SVG documents in file_download.php

Also known asGHSA-qghg-v7xv-q98q
Published
Updated
Affected
1 pkg
Patched
1 / 1
Exploits
2 known
Exploitation data as of Nov 3, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗
0.9%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs61th percentile — riskier than 61% of all scored CVEsHighest risk
0.00%0.48%0.97%1.45%0.3%0.9%May 26Sep 26Nov 26

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

Where this sits among everything scored

Real-World Exposure

1 pkg affected
🐘mantisbt/mantisbt

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Packagist packages — download data is not available via public APIs for these ecosystems.

Description

An XSS vulnerability in MantisBT before 2.25.5 allows remote attackers to attach crafted SVG documents to issue reports or bugnotes. When a user or an admin clicks on the attachment, file_download.php opens the SVG document in a browser tab instead of downloading it as a file, causing the JavaScript code to execute.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
🐘Packagistmantisbt/mantisbtall versions2.25.5composer require mantisbt/mantisbt:^2.25.5

Affected Products

1 product · 1 configurations
Application
mantisbtmantisbt
< 2.25.5
range
Exploits & PoCs
2

Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.

An XSS vulnerability in MantisBT before 2.25.5 allows remote attackers t…

mantisbt.orgNVDJul 2022

Report on mantisbt.org

mantisbt.orgNVDJul 2022

Detection & mitigation playbook

Open-source dependency

  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for mantisbt/mantisbt, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update mantisbt/mantisbt to 2.25.5 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2022-33910 is resolved across your whole dependency graph.

  3. Workarounds

    Escape or sanitise the affected output on the server side rather than relying on client-side filtering, and add a Content-Security-Policy that blocks inline script execution so injected markup cannot run even if it reaches the page.

Frequently Asked Questions

An XSS vulnerability in MantisBT before 2.25.5 allows remote attackers to attach crafted SVG documents to issue reports or bugnotes. When a user or an admin clicks on the attachment, file_download.php opens the SVG document in a browser tab instead of downloading it as a file, causing the JavaScript code to execute.
O3 Security · Impact-Aware SCA

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CVE-2022-33910: mantisbt XSS — Fixed in 2.25.5