Description
Joomla! Core is prone to a security bypass vulnerability. Exploiting this issue may allow attackers to bypass intended access restrictions and perform otherwise restricted actions. Joomla! Core versions ranging from 2.5.0 and up to and including 3.9.27 are vulnerable.
Remediation
Update to Joomla! Core version 3.9.28 or latest
References
Related Vulnerabilities
MySQL CVE-2015-2643 Vulnerability (CVE-2015-2643)
WordPress Plugin YITH WooCommerce Social Login Security Bypass (1.3.4)
OpenSSL Improper Input Validation Vulnerability (CVE-2010-0433)
Django Improper Access Control Vulnerability (CVE-2016-2048)
WordPress 2.0.5 Charset Decoding SQL Injection Vulnerability (0.6.2 - 2.0.5)