CVE-2025-66024
CriticalCVSS 9.0Exploitation Probability (EPSS)
Low risk28th percentile - higher than 28% of all known CVEs
Summary
The XWiki blog application versions 9.15 through 9.15.6 are vulnerable to Stored Cross-Site Scripting via the blog post title. The title is injected directly into the <title> tag without proper escaping, allowing an attacker with post creation permissions to execute scripts in any user's browser, including administrators. The vulnerability is patched in version 9.15.7.
Risk Assessment
Script execution in the administrator context can lead to session hijacking, privilege escalation, or data theft.
Recommendation
Update the XWiki blog application to version 9.15.7 or later, which includes the fix.
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Original NVD description (English source)
The XWiki blog application allows users of the XWiki platform to create and manage blog posts. Versions starting with 9.15 and prior to 9.15.7 are vulnerable to Stored Cross-Site Scripting (XSS) via the Blog Post Title. The vulnerability arises because the post title is injected directly into the HTML <title> tag without proper escaping. An attacker with permissions to create or edit blog posts can inject malicious JavaScript into the title field. This script will execute in the browser of any user (including administrators) who views the blog post. This leads to potential session hijacking or privilege escalation. The vulnerability has been patched in the blog application version 9.15.7 by adding missing escaping. No known workarounds are available.
Vulnerability data from NVD (NIST) · CISA KEV · EPSS