Vulnerability Report

CVE-2025-66474

RCE

Title: HTML injection leading to RCE in XWiki Rendering

RCE

Proof Of Concept

No public PoC currently indexed for CVE-2025-66474.

CWE Category CWE-94
Published Date Dec 10, 2025
Modified Date Dec 19, 2025
Exploit Status Not Found
Score 8.7 CVSS v4.0
Exploit Probability (EPSS)
0.91%

Vulnerability Summary

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.

Impacted Vendors

X
xwiki 1

Reference Links

https://github.com/xwiki/xwiki-platform/commit/12b780ccd5bca5fc8f74f46648d7e02fa04fbc11 https://github.com/xwiki/xwiki-rendering/commit/9b71a2ee035815cfc29cebbfe81dbdd98f941d49 https://github.com/xwiki/xwiki-rendering/security/advisories/GHSA-9xc6-c2rm-f27p https://jira.xwiki.org/browse/XRENDERING-693 https://jira.xwiki.org/browse/XRENDERING-792 https://jira.xwiki.org/browse/XRENDERING-793 https://jira.xwiki.org/browse/XWIKI-23378 https://jira.xwiki.org/browse/XRENDERING-693 https://jira.xwiki.org/browse/XRENDERING-792 https://jira.xwiki.org/browse/XRENDERING-793
CVSS v4.0
Source Entity [email protected]
Severity HIGH
8.7
Attack Vector
NETWORK
Complexity
LOW
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
N/A
RAW VECTOR CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS v3.1
Source Entity [email protected]
Severity HIGH
8.8
Attack Vector
NETWORK
Complexity
LOW
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2025-66474 Exploits & PoCs (Proof Of Concept)

No public PoCs found in our database for this CVE.

MODIFIED

Vulnerability data or affected products updated.

MODIFIED

Vulnerability data updated via NVD.

PUBLISHED

Vulnerability first announced in NVD.

Attack Vector Matrix

Access Vector NETWORK
Complexity LOW
Privileges N/A
Interaction NONE
CVSS Vector String CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Affected Stack

No specific products linked.