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Fencer Vulns
critical 10.0

CVE-2023-26055 json

XWiki Commons may allow privilege escalation to programming rights via user's first name

published 2023-03-02 3 y ago modified 2026-06-17 4 mo ago also GHSA-8cw6-4r32-6r3h , EUVD-2023-0944

cvss
10.0
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
1.2%
EPSS 1.2% chance of exploitation in 30 days, percentile 67%
public exploits
0
none known

Summary

XWiki Commons are technical libraries common to several other top level XWiki projects. Starting in version 3.1-milestone-1, any user can edit their own profile and inject code, which is going to be executed with programming right. The same vulnerability can also be exploited in all other places where short text properties are displayed, e.g., in apps created using Apps Within Minutes that use a short text field. The problem has been patched on versions 13.10.9, 14.4.4, 14.7RC1.

Patch / fix

  • maven org.xwiki.commons:xwiki-commons-xml 13.10.9, 14.4.4, 14.7-rc-1
  • xwiki commons 13.10.9, 14.4.4, 14.7

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
20 mo ago

Exploit prediction

1.16% chance of exploitation in the next 30 days, higher than 67% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • jira.xwiki.org https://jira.xwiki.org/browse/XWIKI-19793 referenced PoC, tagged "exploit" by a source, unverified
  • jira.xwiki.org https://jira.xwiki.org/browse/XWIKI-19794 referenced PoC, tagged "exploit" by a source, unverified
  • github.com https://github.com/xwiki/xwiki-commons/security/advisories/GHSA-8cw6-4r32-6r3h referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.1 10.0 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
NVD 3.1 9.9 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
GitHub 3.1 9.9 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Affected packages

ecosystem package affected fixed in
maven org.xwiki.commons:xwiki-commons-xml
>=3.1-milestone-1, <13.10.9
>=14.0-rc-1, <14.4.4
>=14.5, <14.7-rc-1
13.10.9
14.4.4
14.7-rc-1

Affected products

  • xwiki xwiki-commons

Classification

Weakness
  • CWE-150 Improper Neutralization of Escape, Meta, or Control Sequences

References

Sources

Fencer Vulns 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.