Improper Access Control
The Royal Elementor Addons plugin for WordPress is vulnerable to insufficient access control in the 'wpr_fix_royal_compatibility' AJAX action in versions up to, and including, 1.3.59. This allows any authenticated user, including those with subscriber-level permissions, to deactivate every plugin on the site unless it is part of an extremely limited hardcoded selection. This also switches the site to the 'royal-elementor-kit' theme, potentially resulting in availability issues.
CWE-284 - Improper Access Control
Listed 5th in the 'OWASP Top Ten', improper (or broken) access control attacks are a fundamental type of vulnerability. This includes a broad range of design flaws that enable users to act outside of their intended permissions. They can use these privileges to gain access to restricted files and functionality such as accessing restricted information, falsifying records, destroying data, or executing commands.