GHSA-73vx-49mv-v8w5 is a medium-severity (CVSS 6.1) Cross-site Scripting (XSS) vulnerability in mantisbt/mantisbt. O3 Security confirms whether GHSA-73vx-49mv-v8w5 is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.
MantisBT has Stored HTML Injection/XSS when displaying Tags in Timeline
Real-World Exposure
mantisbt/mantisbtReal-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 names retrieved from History in Timeline (my_view_page.php) allows an attacker to inject HTML and, if CSP settings permit, achieve execution of arbitrary JavaScript, when displaying a tag that has been renamed or deleted.
Impact
Cross-site scripting (XSS).
Patches
f32787c14d4518476fe7f05f992dbfe6eaccd815
Workarounds
- Edit offending History entries (using SQL)
- Wrap
$this->tag_namein a string_html_specialchars() call in IssueTagTimelineEvent::html()
Credits
MantisBT thanks Vishal Shukla for discovering and responsibly reporting the issue.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🐘Packagist | mantisbt/mantisbt | ≥ 2.28.0&&< 2.28.2 | 2.28.2 |
Detection & mitigation playbook
Open-source dependencyDetect
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.
Fix
Update mantisbt/mantisbt to 2.28.2 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-73vx-49mv-v8w5 is resolved across your whole dependency graph.
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.
How O3 protects you
O3 pinpoints whether GHSA-73vx-49mv-v8w5 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-73vx-49mv-v8w5. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.
Frequently Asked Questions
Is GHSA-73vx-49mv-v8w5 in your dependencies?
O3 detects GHSA-73vx-49mv-v8w5 across Packagist dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.