RULE(RULE ID:334066)

Rule General Information
Release Date: 2021-11-10
Rule Name: Joomla! CMS mod_breadcrumbs Title Stored Cross Site Scripting Vulnerability (CVE-2021-23124)
Severity:
CVE ID:
Rule Protection Details
Description: An issue was discovered in Joomla! 3.9.0 through 3.9.23. The lack of escaping in mod_breadcrumbs aria-label attribute allows XSS attacks.
Impact: An attacker can conduct a cross-site scripting attack to inject malicious client-side scripts into web pages viewed by other users, or to bypass access controls such as the same-origin policy, if affected version is installed.
Affected OS: Windows, Linux, Others
Reference: https://developer.joomla.org/security-centre/837-20210102-core-xss-in-mod-breadcrumbs-aria-label-attribute.html
Solutions
The vendor has released upgrade patches to fix vulnerabilities, please visit:
https://developer.joomla.org/security-centre/837-20210102-core-xss-in-mod-breadcrumbs-aria-label-attribute.html