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Fencer Intel
critical 9.1

CVE-2023-40573 json

XWiki Platform's Groovy jobs check the wrong author, allowing remote code execution

published 3y ago modified 4mo ago also GHSA-8xhr-x3v8-rghj , EUVD-2023-2250

cvss
9.1
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
1.1%
EPSS 1.1% chance of exploitation in 30 days, percentile 65%
public exploits
0
none known

Summary

XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. XWiki supports scheduled jobs that contain Groovy scripts. Currently, the job checks the content author of the job for programming right. However, modifying or adding a job script to a document doesn't modify the content author. Together with a CSRF vulnerability in the job scheduler, this can be exploited for remote code execution by an attacker with edit right on the wiki. If the attack is successful, an error log entry with "Job content executed" will be produced. This vulnerability has been patched in XWiki 14.10.9 and 15.4RC1.

Patch / fix

  • maven org.xwiki.platform:xwiki-platform-scheduler-api 14.10.9, 15.4-rc-1
  • xwiki xwiki-platform 14.10.9, 15.4-rc-1

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CISA SSVC

Exploitation
Proof of concept is public
Automatable
no
Technical impact
total
Assessed
2y ago

Exploit prediction

1.08% chance of exploitation in the next 30 days, higher than 65% of all scored CVEs (FIRST EPSS, 2026-11-15).

Exploits and checks

  • jira.xwiki.org https://jira.xwiki.org/browse/XWIKI-20852 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.1 9.1 CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
NVD 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
GitHub 3.1 9.0 CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H

Affected packages

ecosystem package affected fixed in
maven org.xwiki.platform:xwiki-platform-scheduler-api
<14.10.9
>=15.0-rc-1, <15.4-rc-1
14.10.9
15.4-rc-1
maven com.xpn.xwiki.platform.plugins:xwiki-plugin-scheduler
>=1.3
 no fix listed

Affected products

  • xwiki xwiki-platform

Classification

Weakness

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.