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Maven

GHSA-xq3r-2qv5-vqqm

XWiki Platform has path traversal via resources parameter in ssx and jsx endpoints when using leading slash

Also known asCVE-2026-23734
Published
May 26, 2026
Updated
May 26, 2026
Affected
4 pkgs
Patched
4 / 4
Exploits
None indexed

Blast Radius

4 pkgs affected
org.xwiki.commons:xwiki-commons-classloader-apiorg.xwiki.commons:xwiki-commons-classloader-apiorg.xwiki.commons:xwiki-commons-classloader-apiorg.xwiki.commons:xwiki-commons-classloader-api

Real-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

It's possible to get access and read configuration files by using URLs such as http://localhost:8080/bin/ssx/Main/WebHome?resource=/../../WEB-INF/xwiki.cfg&minify=false.

This can apparently be reproduced on Tomcat instances.

Patches

This has been patched in 18.0.0-rc-1, 17.10.3, 17.4.9, 16.10.17.

Workarounds

There is no known workaround, other than upgrading XWiki.

References

For more information

If you have any questions or comments about this advisory:

Attribution

The vulnerability was reported by Michał Kołek.

Affected Packages

4 total 4 fixed
EcosystemPackageVulnerable rangeFix
Mavenorg.xwiki.commons:xwiki-commons-classloader-api4.2-milestone-2&&< 16.10.1716.10.17
Mavenorg.xwiki.commons:xwiki-commons-classloader-api17.0.0-rc-1&&< 17.4.917.4.9
Mavenorg.xwiki.commons:xwiki-commons-classloader-api17.5.0&&< 17.10.317.10.3
Mavenorg.xwiki.commons:xwiki-commons-classloader-api18.0.0-rc-1&&< 18.1.0-rc-118.1.0-rc-1

Detection & mitigation playbook

Open-source dependency
  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for org.xwiki.commons:xwiki-commons-classloader-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.

  2. Fix

    Update org.xwiki.commons:xwiki-commons-classloader-api to 16.10.17 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-xq3r-2qv5-vqqm is resolved across your whole dependency graph.

  3. 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.

  4. How O3 protects you

    O3 pinpoints whether GHSA-xq3r-2qv5-vqqm 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-xq3r-2qv5-vqqm. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

### Impact It's possible to get access and read configuration files by using URLs such as `http://localhost:8080/bin/ssx/Main/WebHome?resource=/../../WEB-INF/xwiki.cfg&minify=false`. This can apparently be reproduced on Tomcat instances. ### Patches This has been patched in 18.0.0-rc-1, 17.10.3, 17.4.9, 16.10.17. ### Workarounds There is no known workaround, other than upgrading XWiki. ### References * https://jira.xwiki.org/browse/XCOMMONS-3547 * https://github.com/xwiki/xwiki-commons/commit/a979cafd89f6a9c9c0b9ab19744d672df64429bf ### For more information If you have any questions
O3 Security · Impact-Aware SCA

Is GHSA-xq3r-2qv5-vqqm in your dependencies?

O3 detects GHSA-xq3r-2qv5-vqqm across Maven dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.