CVE-2025-46558

XWiki Contrib's Syntax Markdown allows importing Markdown content into wiki pages and creating wiki content in Markdown. In versions starting from 8.2 to before 8.9, the Markdown syntax is vulnerable to cross-site scripting (XSS) through HTML. In particular, using Markdown syntax, it's possible for any user to embed Javascript code that will then be executed on the browser of any other user visiting either the document or the comment that contains it. In the instance that this code is executed by a user with admins or programming rights, this issue compromises the confidentiality, integrity and availability of the whole XWiki installation. This issue has been patched in version 8.9.

CVSS v3 9.0 CRITICAL

9.0^/10

CVSS v3 : CRITICAL

Vector :

Exploitability : 2.3 / Impact : 6.0

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction REQUIRED

Confidentiality Impact HIGH

Integrity Impact HIGH

Availability Impact HIGH

Scope CHANGED

References

Link	Resource
https://github.com/xwiki-contrib/syntax-markdown/commit/d136472d6e8a47981a0ede420a9096f88ffa5035	Patch
https://github.com/xwiki-contrib/syntax-markdown/security/advisories/GHSA-8g2j-rhfh-hq3r	Patch Third Party Advisory
https://jira.xwiki.org/browse/MARKDOWN-80	Exploit Issue Tracking

Configurations

Configuration 1 (hide)

cpe:2.3:a:xwiki:xwiki:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2025-04-30 19:15

Updated : 2025-08-26 16:28

NVD link : CVE-2025-46558

Mitre link : CVE-2025-46558

CVE.ORG link : CVE-2025-46558

JSON object : View

Products Affected

xwiki

xwiki

CWE

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

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