CVE-2025-46558
xwiki vulnerability - xwiki
Description
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.
Affected Systems
| Vendor | xwiki |
| Product | xwiki |
| Affected Versions | from 8.2 before 8.9 |
| CWE ID | CWE-79 |
Mitigation
Apply the latest security patches from the vendor, restrict network exposure where applicable, and monitor for exploitation attempts.
Fix Instructions
Refer to the vendor advisory and apply the latest security updates. See references for detailed patching instructions.
References
Risk Assessment
CVSS: 9/10
| Exploit Available | Unknown |
| Patch Available | Yes |
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