CVE-2025-66024: XWiki Blog Application home page vulnerable to Stored XSS via Post Title
Impact
The Blog Application is 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.
To reproduce:
Log in as a user with rights to create blog posts. Create a new blog post. In the Title field, insert the following payload designed to break out of the title tag: </title><script>alert('XSS in title blog')</script> Save (Publish) the post. View the post in the blog home page
Patches The vulnerability has been patched in the blog application version 9.15.7 by adding missing escaping.
Workarounds XWiki Blog Application maintainers are not aware of any workarounds.
Resources https://jira.xwiki.org/browse/BLOG-245 https://github.com/xwiki-contrib/application-blog/commit/cca87f0a0edc2e7e049d46d51f4a4d8f78b714ba
Attribution
Łukasz Rybak reported this vulnerability.
Other sources
The XWiki blog application allows users of the XWiki platform to create and manage blog posts. Versions 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.
— MITRE
Affected Software
Remediation
Event History
Frequently Asked Questions
What is the severity of CVE-2025-66024?
CVE-2025-66024 is considered a medium severity vulnerability due to the potential for Stored Cross-Site Scripting attacks.
How do I fix CVE-2025-66024?
To fix CVE-2025-66024, upgrade to version 9.15.7 or later of the XWiki Blog Application.
What software is affected by CVE-2025-66024?
CVE-2025-66024 affects the XWiki Blog Application prior to version 9.15.7.
What type of vulnerability is CVE-2025-66024?
CVE-2025-66024 is a Stored Cross-Site Scripting (XSS) vulnerability.
What is the impact of CVE-2025-66024?
The impact of CVE-2025-66024 allows an attacker to inject malicious scripts via the Blog Post Title, potentially compromising user data.