GHSA-xh32-cx6c-cp4v
MEDIUMGogs XSS allowed by stored call in PDF renderer
EPSS Exploitation Probability
EPSS (Exploit Prediction Scoring System) is a daily probability model maintained by FIRST.org. It estimates the likelihood a CVE will be exploited in production environments within the next 30 days, derived from real-world threat intelligence signals.
Blast Radius
github.com/gogs/gogs🐹gogs.io/gogsReal-time download stats are indexed for npm and PyPI packages. This vulnerability affects Go packages — download data is not available via public APIs for these ecosystems.
Description
Summary
A stored XSS is present in Gogs which allows client-side Javascript code execution.
Details
Gogs Version:
docker images
REPOSITORY TAG IMAGE ID CREATED SIZE
gogs/gogs latest fe92583bc4fe 10 hours ago 99.3MB
Application version: 0.14.0+dev
Local setup using:
# Pull image from Docker Hub.
docker pull gogs/gogs
# Create local directory for volume.
sudo mkdir -p /var/gogs
# Use `docker run` for the first time.
docker run --name=gogs -p 10022:22 -p 10880:3000 -v /var/gogs:/data gogs/gogs
The vulnerability is caused by the usage of a vulnerable and outdated component: pdfjs-1.4.20 under public/plugins/.
Read more about this vulnerability at codeanlabs - CVE-2024-4367.
PoC
- Upload the Proof of Concept file hosted at https://codeanlabs.com/wp-content/uploads/2024/05/poc_generalized_CVE-2024-4367.pdf in a repository.
- Click on the file to be previewed.
Credits
Edoardo Ottavianelli
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 🐹Go | github.com/gogs/gogs | all versions | 0.13.3-0.20250608224432-110117b2e5e5 |
| 🐹Go | gogs.io/gogs | all versions | 0.13.3-0.20250608224432-110117b2e5e5 |
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for github.com/gogs/gogs. 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 github.com/gogs/gogs to 0.13.3-0.20250608224432-110117b2e5e5 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-xh32-cx6c-cp4v 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-xh32-cx6c-cp4v 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-xh32-cx6c-cp4v. 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-xh32-cx6c-cp4v in your dependencies?
O3 detects GHSA-xh32-cx6c-cp4v across Go dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.