GHSA-9jq9-c2cv-pcrj
MEDIUMCross-site Scripting by SVG upload in xwiki-platform
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
org.xwiki.platform:xwiki-platform-oldcore☕org.xwiki.platform:xwiki-platform-oldcore☕org.xwiki.platform:xwiki-platform-tool-configuration-resources☕org.xwiki.platform:xwiki-platform-tool-configuration-resourcesReal-time download stats are indexed for npm and PyPI packages. This vulnerability affects Maven packages — download data is not available via public APIs for these ecosystems.
Description
Impact
When using default XWiki configuration, it's possible for an attacker to upload an SVG containing a script executed when executing the download action on the file.
Patches
This problem has been patched so that the default configuration doesn't allow to display the SVG files in the browser.
Workarounds
This issue can be fixed without the patch by setting properly the configuration to download or display files, see: https://www.xwiki.org/xwiki/bin/view/Documentation/AdminGuide/Attachments#HAttachmentdisplayordownload
References
https://jira.xwiki.org/browse/XWIKI-18368
For more information
If you have any questions or comments about this advisory:
- Open an issue in Jira
- Email us at security ML
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| ☕Maven | org.xwiki.platform:xwiki-platform-oldcore | all versions | 12.10.6 |
| ☕Maven | org.xwiki.platform:xwiki-platform-oldcore | ≥ 13.0&&< 13.3RC1 | 13.3RC1 |
| ☕Maven | org.xwiki.platform:xwiki-platform-tool-configuration-resources | ≥ 13.0&&< 13.3RC1 | 13.3RC1 |
| ☕Maven | org.xwiki.platform:xwiki-platform-tool-configuration-resources | all versions | 12.10.6 |
Research use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for org.xwiki.platform:xwiki-platform-oldcore. 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 org.xwiki.platform:xwiki-platform-oldcore to 12.10.6 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-9jq9-c2cv-pcrj 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-9jq9-c2cv-pcrj 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-9jq9-c2cv-pcrj. 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-9jq9-c2cv-pcrj in your dependencies?
O3 detects GHSA-9jq9-c2cv-pcrj across Maven dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.