RCE in Xwiki Xwiki-Rendering
CVE-2025-66474
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.010 (63.1th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 63rd percentile — 63.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.010 · newest: 0.010 · change: 0.000
Affected products
- Xwiki Xwiki-Rendering — versions >= 17.0.0-rc-1, < 17.4.3, >= 17.5.0-rc-1, < 17.6.0-rc-1, 17.5.0
Weakness classification (CWE)
References
- github.com/xwiki/xwiki-rendering/security/advisories/GHSA-9xc6-c2rm-f27p (Patch, Vendor Advisory)
- github.com/xwiki/xwiki-platform/commit/12b780ccd5bca5fc8f74f46648d7e02fa04fbc11 (Patch)
- github.com/xwiki/xwiki-rendering/commit/9b71a2ee035815cfc29cebbfe81dbdd98f941d49 (Patch)
- jira.xwiki.org/browse/XRENDERING-693 (Exploit, Patch, Vendor Advisory)
- jira.xwiki.org/browse/XRENDERING-792 (Exploit, Patch, Vendor Advisory)
- jira.xwiki.org/browse/XRENDERING-793 (Exploit, Patch, Vendor Advisory)
- jira.xwiki.org/browse/XWIKI-23378 (Patch, Vendor Advisory)
Frequently asked questions
- What is CVE-2025-66474?
- CVE-2025-66474 is a high-severity vulnerability in Xwiki Xwiki-Rendering, classified under Eval Injection. CVSS score: 8.8/10. Published 2025-12-10.
- How severe is CVE-2025-66474?
- High severity. CVSS v3 base score is 8.8 out of 10.