XWiki Platform PT via ssx/jsx URLs < 18.1.0-rc-1, 17.10.3, 17.4.9, 16.10.17
CVE-2026-23734 Published on May 20, 2026
XWiki Platform: Path traversal via resources parameter in ssx and jsx endpoints when using leading slash
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.
Vulnerability Analysis
CVE-2026-23734 is exploitable with network access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have no impact on confidentiality and integrity and availability.
Weakness Type
Relative Path Traversal
The software uses external input to construct a pathname that should be within a restricted directory, but it does not properly neutralize sequences such as ".." that can resolve to a location that is outside of that directory. This allows attackers to traverse the file system to access files or directories that are outside of the restricted directory.
Products Associated with CVE-2026-23734
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Affected Versions
xwiki-commons:- Version >= 4.2-milestone-2, < 16.10.17 is affected.
- Version >= 17.0.0-rc-1, < 17.4.9 is affected.
- Version >= 17.5.0, < 17.10.3 is affected.
- Version >= 18.0.0-rc-1, < 18.1.0-rc-1 is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.