GHSA-mg4c-884j-pcq9 — leantime/leantime
Fix: Leantime/leantime@d8b1099GHSA-mg4c-884j-pcq9 is a security vulnerability in leantime/leantime. A fix is available for leantime/leantime — see the affected versions and patch details below.
Leantime allows Stored Cross-Site Scripting (XSS)
Real-World Exposure
leantime/leantimeReal-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
STORED XSS +OPEN REDIRECTION in SVG uploads Vulnerable url:https://hack.leantime.io/projects/showProject/3
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🐘Packagist | leantime/leantime | all versions | 3.3composer require leantime/leantime:^3.3 |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for leantime/leantime, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update leantime/leantime to 3.3 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-mg4c-884j-pcq9 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 Security's impact-aware SCA analyses which vulnerable code paths your application actually calls, so a match like GHSA-mg4c-884j-pcq9 can be triaged on real exposure rather than presence alone.
Tailored to GHSA-mg4c-884j-pcq9. 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-mg4c-884j-pcq9 in your dependencies?
O3 Security finds GHSA-mg4c-884j-pcq9 across Packagist dependencies, including transitive ones, and its impact-aware SCA ranks findings by whether your code actually calls the vulnerable path.