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.
Scores
CVSS v3
8.8
EPSS
0.0124
EPSS Percentile
79.3%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
total
Details
CWE
CWE-95
CWE-94
Status
published
Products (3)
org.xwiki.rendering/xwiki-rendering-xml
0 - 16.10.10Maven
xwiki/xwiki-rendering
17.5.0 (2 CPE variants)
xwiki/xwiki-rendering
< 16.10.10
Published
Dec 10, 2025
Tracked Since
Feb 18, 2026