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XWiki Platform EUVD-2026-31152

| CVE-2026-23734 CRITICAL
Relative Path Traversal (CWE-23)
2026-05-20 GitHub_M GHSA-xq3r-2qv5-vqqm
Path Traversal
9.3
CVSS 4.0
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CVSS VectorNVD

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
X

Lifecycle Timeline

3
Source Code Evidence Fetched
May 20, 2026 - 20:04 vuln.today
Analysis Generated
May 20, 2026 - 20:04 vuln.today
Patch available
May 20, 2026 - 20:02 EUVD

Blast Radius

ecosystem impact
† from your stack dependencies † transitive graph · vuln.today resolves 4-path depth
  • 2 maven packages depend on org.xwiki.commons:xwiki-commons-classloader-api (2 direct, 0 indirect)

Ecosystem-wide dependent count for version 4.2-milestone-2.

DescriptionNVD

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.

AnalysisAI

Path traversal in XWiki Platform allows unauthenticated remote attackers to read arbitrary files on the server, including sensitive configuration like WEB-INF/xwiki.cfg, by abusing the resource parameter of the ssx and jsx endpoints with leading-slash prefixes. The CVSS 4.0 base score of 9.3 reflects network-reachable, no-privilege exploitation with high impact to confidentiality, integrity, and availability of the vulnerable component. …

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RemediationAI

Within 24 hours: Inventory all XWiki Platform installations and determine which are internet-accessible. Within 7 days: Apply available vendor patches to all instances, with priority given to internet-facing systems. …

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EUVD-2026-31152 vulnerability details – vuln.today
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