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CVE-2025-66474

Xwiki Xwiki-rendering remote code execution

8.8 HIGHPublic exploitEPSS 1.02%
  1. Published10 Dec 2025

Description

XWiki Rendering is a generic rendering system that converts textual input in a given syntax (wiki syntax, HTML, etc) into another syntax (XHTML, etc). Versions 16.10.9 and below, 17.0.0-rc-1 through 17.4.2 and 17.5.0-rc-1 through 17.5.0 have insufficient protection against {{/html}} injection, which attackers can exploit through RCE. Any user who can edit their own profile or any other document can execute arbitrary script macros, including Groovy and Python macros, which enable remote code execution as well as unrestricted read and write access to all wiki contents. This issue is fixed in versions 16.10.10, 17.4.3 and 17.6.0-rc-1.

CVSS 3.1 breakdown

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

Affected products

Xwiki Xwiki-rendering≥ 17.0.0 < 17.4.3 · < 16.10.10 · 17.5.0

Remediation

Fixed in
Xwiki Xwiki-rendering≥ 17.4.3

References

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Frequently asked

Is CVE-2025-66474 being actively exploited?

CVE-2025-66474 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 1.02%.

How severe is CVE-2025-66474?

CVE-2025-66474 has a CVSS 3.1 base score of 8.8, rated high. EPSS estimates a 1.02% probability of exploitation.

Which products are affected by CVE-2025-66474?

Affected products include Xwiki Xwiki-rendering.

How do I fix CVE-2025-66474?

Upgrade affected software to a fixed version, for example Xwiki Xwiki-rendering 17.4.3 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2025-66474 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.