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CVE-2026-33229

Xwiki broken access control

9.8 CRITICALPublic exploitEPSS 1.21%
  1. Published8 Apr 2026

Description

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 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

Xwiki≥ 17.0.0 < 17.4.8 · ≥ 17.5.0 < 17.10.1

Remediation

Fixed in
Xwiki≥ 17.4.8

References

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Frequently asked

Is CVE-2026-33229 being actively exploited?

CVE-2026-33229 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 1.21%.

How severe is CVE-2026-33229?

CVE-2026-33229 has a CVSS 3.1 base score of 9.8, rated critical. EPSS estimates a 1.21% probability of exploitation.

Which products are affected by CVE-2026-33229?

Affected products include Xwiki.

How do I fix CVE-2026-33229?

Upgrade affected software to a fixed version, for example Xwiki 17.4.8 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-33229 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.