CVE-2026-23734CWE-23

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

Critical · published May 20, 2026

CVSS v4.0

9.3

EPSS

19%

Percentile

97.2

In the wild

Unconfirmed

What it is

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.

The record

Technical detail

CVSS v4.0: 9.3 · CRITICAL
Vector: 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
EPSS: 0.18528 · 97.2th percentile
Weakness: CWE-23 · Relative Path Traversal
Published: 2026-05-20T18:39Z

EPSS history

Timeline

20 MAY 18:39Z
XWiki Platform: Path traversal via resources parameter in ssx and jsx endpoints when using leading slash
cvelistv5