GHSA-mg4c-884j-pcq9 Leantime allows Stored Cross-Site Scripting (XSS)
Not scored
Published
Check this codebase for GHSA-mg4c-884j-pcq9 and fix it if it is affected.
What it is: GHSA-mg4c-884j-pcq9 is a cross-site scripting vulnerability in leantime/leantime, published on 21 Feb 2025. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of GHSA-mg4c-884j-pcq9 in the wild and no public exploit code.
Affected packages and fixed versions:
- leantime/leantime (Packagist): affected all versions; fixed in 3.3
- leantime/leantime (Packagist): affected all versions; fixed in 3.3
Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.
Reference: https://insights.sbomify.com/GHSA-mg4c-884j-pcq9/ (Markdown: https://insights.sbomify.com/GHSA-mg4c-884j-pcq9/index.md)
Attackers can inject malicious scripts via SVG uploads, leading to stored XSS and open redirection in Leantime.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is GHSA-mg4c-884j-pcq9?
GHSA-mg4c-884j-pcq9 is a cross-site scripting vulnerability in leantime/leantime, published on 21 Feb 2025. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Official description
STORED XSS +OPEN REDIRECTION in SVG uploads
Vulnerable url:https://hack.leantime.io/projects/showProject/3
Which versions are affected by GHSA-mg4c-884j-pcq9?
2 open source packages ship an affected version, including leantime/leantime.
| Package | Affected | Fixed in |
|---|---|---|
leantime/leantime Packagist | All versions | 3.3 |
leantime/leantime Packagist | All versions | 3.3 |
How do I fix GHSA-mg4c-884j-pcq9?
Upgrade leantime/leantime to 3.3 or later.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is GHSA-mg4c-884j-pcq9 being exploited?
There is no known exploitation of GHSA-mg4c-884j-pcq9 in the wild and no public exploit code.