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Vulnerability record · CVE-2025-66024 · published 4 March 2026

CVE-2025-66024: Xwiki blog application cross-site scripting vulnerability

Xwiki · Blog Application

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.

8.6 CVSS 4.0 High EPSS 0.37% · top 72.2% CWE-79 · Cross-site scripting
8.6CVSS 4.0 base score
0.37%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
4References, 1 tagged exploit
5 Aug 2026Last modified by NVD

Description

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.

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/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:

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/xwiki-contrib/application-blog/commit/cca87f0a0edc2e7e049d46d51f4a4d8f78b714ba Patch
https://github.com/xwiki-contrib/application-blog/commit/cdcbf2816e9b329e8f006be4391a7ffe80d4bb3f
https://github.com/xwiki-contrib/application-blog/security/advisories/GHSA-h2xq-h7f9-vh6c Vendor Advisory
https://jira.xwiki.org/browse/BLOG-245 ExploitVendor Advisory

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Source: NIST National Vulnerability Database (record CVE-2025-66024), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.