CVE-2021-23124: [20210102] - Core - XSS in mod_breadcrumbs aria-label attribute
First published: Tue Jan 12 2021(Updated: )
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.
Credit: security@joomla.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Joomla Joomla\! | >=3.9.0<=3.9.23 |
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Reference Links
Frequently Asked Questions
What is CVE-2021-23124?
CVE-2021-23124 is a vulnerability in Joomla! 3.9.0 through 3.9.23 that allows XSS attacks through the mod_breadcrumbs aria-label attribute.
How severe is CVE-2021-23124?
CVE-2021-23124 has a severity rating of medium (6.1) according to CVSS.
How does CVE-2021-23124 affect Joomla!?
CVE-2021-23124 affects Joomla! versions 3.9.0 through 3.9.23.
What is the Common Weakness Enumeration (CWE) for CVE-2021-23124?
CVE-2021-23124 is associated with CWE-79, which is the Weakness for Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting').
How can I fix CVE-2021-23124?
To fix CVE-2021-23124, it is recommended to update Joomla! to the latest version available, which includes the necessary security patches.
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