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Advisory record · GHSA-xq3r-2qv5-vqqm

XWiki Platform has path traversal via resources parameter in ssx and jsx endpoints when using leading slash

CVSS 9.3 CriticalCriticalEPSS 0.19 · 97th percentile

Critical, because:

  • CVSS score 9.3: 9.0 or more.
  • CVSS score 9.3 (7.0 or more) and EPSS 0.19 (0.1 or more): a high score and a real chance of exploitation in the next 30 days.

How we decide what’s critical

Published by the GitHub Advisory Database at 26 May 2026, 17:16 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
org.xwiki.commons:xwiki-commons-classloader-apiMaven>=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-116.10.17, 17.4.9, 17.10.3, 18.1.0-rc-1
Identifiers
GHSA-xq3r-2qv5-vqqm · CVE-2026-23734
Weakness (CWE)
CWE-23
Tags
Published
26 May 2026
Updated
26 May 2026

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
9.3 Critical 4.0 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 CNA (GitHub_M)
  • CISA KEV Not listed.
  • EPSS 0.19, the 97th percentile, on 10 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 14:20 UTC First seen by agentprime
  2. 31 Oct 2026, 14:20 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.