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Fencer Intel
critical 9.3

CVE-2026-23734 in the critical feed json

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

published 5mo ago modified 3mo ago also EUVD-2026-31152 , GHSA-xq3r-2qv5-vqqm

cvss
9.3
version 4.0, CNA
cisa kev
Not listed
not in CISA's catalog
epss
18.5%
EPSS 18.5% chance of exploitation in 30 days, percentile 97%
public exploits
0
none known

Summary

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.

Patch / fix

  • maven org.xwiki.commons:xwiki-commons-classloader-api 16.10.17, 17.4.9, 17.10.3, 18.1.0-rc-1
  • xwiki commons 16.10.17, 17.4.9, 17.10.3, 18.1.0-rc-1
  • xwiki xwiki 16.10.17, 17.4.9, 17.10.3, 18.1.0-rc-1
  • org.xwiki.commons xwiki-commons-classloader-api 16.10.17, 17.4.9, 17.10.3, 18.1.0-rc-1

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CISA SSVC

Exploitation
none
Automatable
yes
Technical impact
partial
Assessed
5mo ago

Exploit prediction

18.53% chance of exploitation in the next 30 days, higher than 97% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
CNA 4.0 9.3 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 4.0 9.3 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

Affected packages

ecosystem package affected fixed in
maven org.xwiki.commons:xwiki-commons-classloader-api
>=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
16.10.17
17.4.9
17.10.3
18.1.0-rc-1

Affected products

  • xwiki xwiki-commons

Classification

Weakness
  • CWE-23 Relative Path Traversal

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.