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GHSA-fh48-f69w-7vmp

Fix: mantisbt/mantisbt@80990f4

GHSA-fh48-f69w-7vmp is a Cross-site Scripting (XSS) vulnerability in mantisbt/mantisbt. O3 Security confirms whether GHSA-fh48-f69w-7vmp is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.

MantisBT Vulnerable to Stored HTML Injection in Tag Delete Confirmation

Also known asCVE-2026-33517
Published
Mar 25, 2026
Updated
Mar 25, 2026
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed
Exploitation data as of Mar 25, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

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

Improper escaping of Tag name when deleting it in tag_delete.php allows an attacker to inject HTML and, if CSP settings permit, achieve execution of arbitrary JavaScript.

Impact

Cross-site scripting (XSS).

Patches

80990f43153167c73f11eb4b2bc7108d0c3d6b46

Workarounds

  • Revert commit d6890320752ecf37bd74d11fe14fe7dc12335be9
  • Manually edit language files to remove the sprintf placeholder %1$s from $s_tag_delete_message string, for example with sed -r -i '/tag_delete_message/s/.%1\$s.//' -- lang/

Credits

MantisBT hanks Vishal Shukla for discovering and responsibly reporting the issue.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
🐘Packagistmantisbt/mantisbt2.28.0&&< 2.28.12.28.1

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. O3's reachability analysis confirms whether the vulnerable code path is actually invoked in your application, so you act on real exposure instead of every transitive match.

  2. Fix

    Update mantisbt/mantisbt to 2.28.1 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-fh48-f69w-7vmp is resolved across your whole dependency graph.

  3. Workarounds

    If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

  4. How O3 protects you

    O3 pinpoints whether GHSA-fh48-f69w-7vmp is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.

Tailored to GHSA-fh48-f69w-7vmp. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

Improper escaping of Tag name when deleting it in tag_delete.php allows an attacker to inject HTML and, if CSP settings permit, achieve execution of arbitrary JavaScript. ### Impact Cross-site scripting (XSS). ### Patches 80990f43153167c73f11eb4b2bc7108d0c3d6b46 ### Workarounds * Revert commit d6890320752ecf37bd74d11fe14fe7dc12335be9 * Manually edit language files to remove the sprintf placeholder `%1$s` from *$s_tag_delete_message* string, for example with `sed -r -i '/tag_delete_message/s/.%1\$s.//' -- lang/` ### Credits MantisBT hanks Vishal Shukla for discovering and responsibly repor
O3 Security · Impact-Aware SCA

Is GHSA-fh48-f69w-7vmp in your dependencies?

O3 detects GHSA-fh48-f69w-7vmp across Packagist dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.

GHSA-fh48-f69w-7vmp: mantisbt/mantisbt… | O3 Security