Critical 9.8Published Apr 8, 2026

CVE-2026-33229XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it.

Updated under an hour ago (2026-10-19 09:00 UTC)

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It affects xwiki. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Exploited in the last 30 days

XWiki Platform is a generic wiki platform offering runtime services for applications built on top of it. Prior to 17.4.8 and 17.10.1, an improperly protected scripting API allows any user with script right to bypass the sandboxing of the Velocity scripting API and execute, e.g., arbitrary Python scripts, allowing full access to the XWiki instance and thereby compromising the confidentiality, integrity and availability of the whole instance. Note that script right already constitutes a high level of access that we don't recommend giving to untrusted users. This vulnerability is fixed in 17.4.8 and 17.10.1.

CVSS: 9.8 CRITICAL (v3.1, NVD)CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness (CWE): CWE-862
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Not given
NVD analysis: Analyzed
Record last updated: Jul 24, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

xwiki xwiki xwiki:xwiki	from 17.0.0 before 17.4.8; from 17.5.0 before 17.10.1	NVD

References

https://github.com/xwiki/xwiki-platform/commit/9fe84da66184c05953df9466cf3a4acd15a46e63patch
https://github.com/xwiki/xwiki-platform/security/advisories/GHSA-h259-74h5-4rh9patch, vendor-advisory
https://jira.xwiki.org/browse/XWIKI-23698exploit, vendor-advisory
https://jira.xwiki.org/browse/XWIKI-23702exploit, vendor-advisory

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.