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 1.6.2 and up to and including 3.9.10 are vulnerable.
Remediation
Update to Joomla! Core version 3.9.11 or latest
References
Related Vulnerabilities
WordPress 4.5.x Same Origin Method Execution (SOME) Vulnerability (4.5 - 4.5.1)
MySQL Permissions, Privileges, and Access Controls Vulnerability (CVE-2016-8289)
WordPress Plugin Responsive Lightbox by dFactory Cross-Site Scripting (1.4.11)
PostgreSQL Other Vulnerability (CVE-2009-4136)
WordPress Plugin ClickDesk Live Support-Live Chat-Help Desk Cross-Site Scripting (4.2)