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

Critical severity · published May 20, 2026

CVE-2026-23734

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

9.3

CVSS

18.5%

EPSS

On KEV

Description

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.

Exploitation

Is it being used?

Exploit prediction (EPSS)18.5% · higher than 97% of CVEs

Exploited in the wildNo evidence yet

CISA KEVNot listed

Ransomware campaign useNot known

Affected products

Which versions

xwiki-commons · xwiki

>= 4.2-milestone-2, < 16.10.17; >= 17.0.0-rc-1, < 17.4.9; >= 17.5.0, < 17.10.3; >= 18.0.0-rc-1, < 18.1.0-rc-1 · source: vendor

Affected product

xwiki-commons