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Fencer Vulns
critical 10.0

CVE-2023-29525 in the critical feed json

Privilege escalation from view right on XWiki.Notifications.Code.LegacyNotificationAdministration in xwiki-platform

published 2023-04-18 3 y ago modified 2026-10-24 16 d ago also GHSA-jgg7-w2rj-58cj , EUVD-2023-1337

cvss
10.0
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
77.8%
EPSS 77.8% chance of exploitation in 30 days, percentile 99.5%
public exploits
0
none known

Summary

XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. Affected versions of xwiki are subject to code injection in the `since` parameter of the `/xwiki/bin/view/XWiki/Notifications/Code/LegacyNotificationAdministration` endpoint. This provides an XWiki syntax injection attack via the since-parameter, allowing privilege escalation from view to programming rights and subsequent code execution privilege. The vulnerability has been patched in XWiki 15.0-rc-1, 14.10.3, 14.4.8 and 14.10.3. Users are advised to upgrade. Users unable to upgrade may modify the page `XWiki.Notifications.Code.LegacyNotificationAdministration` to add the missing escaping. For versions < 14.6-rc-1 a workaround is to modify the file `<xwikiwebapp>/templates/distribution/eventmigration.wiki` to add the missing escaping.

Patch / fix

  • maven org.xwiki.platform:xwiki-platform-distribution-war 13.10.11, 14.4.8, 14.6-rc-1
  • maven org.xwiki.platform:xwiki-platform-legacy-events-hibernate-ui 14.10.3
  • xwiki xwiki 14.4.8, 14.10.3

CISA SSVC

Exploitation
Proof of concept is public
Automatable
no
Technical impact
total
Assessed
21 mo ago

Exploit prediction

77.75% chance of exploitation in the next 30 days, higher than 99.5% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • github.com https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-jgg7-w2rj-58cj referenced PoC, tagged "exploit" by a source, unverified
  • jira.xwiki.org https://jira.xwiki.org/browse/XWIKI-20287 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 8.8 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
GitHub 3.1 9.9 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.platform:xwiki-platform-distribution-war
>=12.6.1, <13.10.11
>=14.0-rc-1, <14.4.8
>=14.5, <14.6-rc-1
13.10.11
14.4.8
14.6-rc-1
maven org.xwiki.platform:xwiki-platform-legacy-events-hibernate-ui
>=14.6-rc-1, <14.10.3
14.10.3

Affected products

  • xwiki xwiki-platform

Classification

Weakness
  • CWE-74 Improper Neutralization of Special Elements in Output Used by a Downstream Component

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.