The Royal Elementor Addons plugin for WordPress is vulnerable to insufficient access control in the 'wpr_activate_required_theme' AJAX action in versions up to, and including, 1.3.59. This allows any authenticated user, including those with subscriber-level permissions, to activate the 'royal-elementor-kit' theme. If no such theme is installed doing so can also impact site availability as the site attempts to load a nonexistent theme.

References

• https://nvd.nist.gov/vuln/detail/CVE-2022-4700
• https://plugins.trac.wordpress.org/browser/royal-elementor-addons/trunk/admin/templates-kit.php?rev=2833046
• https://www.wordfence.com/blog/2023/01/eleven-vulnerabilities-patched-in-royal-elementor-addons/
• https://www.wordfence.com/threat-intel/vulnerabilities/id/cdd464ad-24bc-4922-8bfa-ac42fbe60b52