Description
Joomla! Core is prone to a security bypass vulnerability. Exploiting this issue may allow attackers to perform otherwise restricted actions and subsequently bypass a user's 2-factor-authentication method. Joomla! Core versions 3.x.x ranging from 3.2.0 and up to and including 3.8.1 are vulnerable.
Remediation
Update to Joomla! Core version 3.8.2 or latest
References
Related Vulnerabilities
WordPress Plugin Easy Appointments Cross-Site Scripting (3.11.0)
WordPress Plugin eShop Multiple Vulnerabilities (6.3.13)
WordPress 4.2.x Multiple Vulnerabilities (4.2 - 4.2.34)
WordPress Plugin WP Easy Gallery Cross-Site Scripting (4.1)
Moodle Insertion of Sensitive Information into Log File Vulnerability (CVE-2018-10889)