GHSA-fwwj-wg89-7h4c
HIGHGHSA-fwwj-wg89-7h4c is a high-severity (CVSS 8.8) Cross-site Scripting (XSS) vulnerability in org.xwiki.platform:xwiki-platform-sharepage-api. 1 public exploit reference exists, so weaponization risk is real. O3 Security confirms whether GHSA-fwwj-wg89-7h4c is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.
XWiki Platform vulnerable to cross-site scripting in target parameter via share page by email
Blast Radius
org.xwiki.platform:xwiki-platform-sharepage-api☕org.xwiki.platform:xwiki-platform-sharepage-apiReal-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
Users are able to forge an URL with a payload allowing to inject Javascript in the page (XSS).
For instance, the following URL execute an alter on the browser: <xwiki-host>/xwiki/bin/view/Main/?viewer=share&send=1&target=&target=%3Cimg+src+onerror%3Dalert%28document.domain%29%3E+%3Cimg+src+onerror%3Dalert%28document.domain%29%3E+%3Crenniepak%40intigriti.me%3E&includeDocument=inline&message=I+wanted+to+share+this+page+with+you., where <xwiki-host> is the URL of your XWiki installation.
See https://jira.xwiki.org/browse/XWIKI-20370 for me details.
Patches
The vulnerability has been patched in XWiki 15.0-rc-1, 14.10.4, and 14.4.8.
Workarounds
The fix is only impacting Velocity templates and page contents, so applying this patch is enough to fix the issue.
References
https://jira.xwiki.org/browse/XWIKI-20370
For more information
If you have any questions or comments about this advisory:
- Open an issue in Jira XWiki.org
- Email us at Security Mailing List
Attribution
This vulnerability has been reported on Intigriti by René de Sain @renniepak.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| ☕Maven | org.xwiki.platform:xwiki-platform-sharepage-api | ≥ 2.6-rc-2&&< 14.4.8 | 14.4.8 |
| ☕Maven | org.xwiki.platform:xwiki-platform-sharepage-api | ≥ 14.5&&< 14.10.4 | 14.10.4 |
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-sharepage-api. 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-sharepage-api to 14.4.8 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-fwwj-wg89-7h4c 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-fwwj-wg89-7h4c 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-fwwj-wg89-7h4c. 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-fwwj-wg89-7h4c in your dependencies?
O3 detects GHSA-fwwj-wg89-7h4c across Maven dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.