Critical 9.3Published May 20, 2026

CVE-2026-23734XWiki Platform: Path traversal via resources parameter in ssx and jsx endpoints when using leading slash

Updated under an hour ago (Oct 26, 2026, 1:23 PM ET)

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It affects xwiki-commons. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for xwiki-commons

Exploited in the last 30 days

XWiki Platform is a generic wiki platform. Versions prior to 18.1.0-rc-1, 17.10.3, 17.4.9, and 16.10.17 allow access to read configuration files by using URLs such as http://localhost:8080/bin/ssx/Main/WebHome?resource=/../../WEB-INF/xwiki.cfg&minify=false, leading to Path Traversal. The vulnerability is can be exploited via resources parameter the ssx and jsx endpoints by using leading slashes. This issue has been patched in 18.1.0-rc-1, 17.10.3, 17.4.9, 16.10.17.

CVSS: 9.3 CRITICAL (v4.0, CNA)CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Weakness (CWE): CWE-23
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Deferred
Record last updated: May 26, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

xwiki xwiki-commons xwiki:commons (from the name)	from 4.2-milestone-2, < 16.10.17; from 17.0.0-rc-1, < 17.4.9; from 17.5.0, < 17.10.3; from 18.0.0-rc-1, < 18.1.0-rc-1	CNA record

References

References

https://github.com/xwiki/xwiki-commons/security/advisories/GHSA-xq3r-2qv5-vqqm	x-refsource-confirm
https://github.com/xwiki/xwiki-commons/commit/a979cafd89f6a9c9c0b9ab19744d672df64429bf	x-refsource-misc
https://jira.xwiki.org/browse/XCOMMONS-3547	x-refsource-misc

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.