Description
wp-admin/options.php in WordPress MU before 1.3.2, and WordPress 2.3.2 and earlier, does not properly validate requests to update an option, which allows remote authenticated users with manage_options and upload_files capabilities to execute arbitrary code by uploading a PHP script and adding this script's pathname to active_plugins.
Remediation
References
Related Vulnerabilities
phpMyAdmin Deserialization of Untrusted Data Vulnerability (CVE-2016-6620)
IBM RTC Exposure of Sensitive Information to an Unauthorized Actor Vulnerability (CVE-2015-7449)
WordPress 4.4.x Multiple Vulnerabilities (4.4 - 4.4.29)
WordPress Plugin Cryptocurrency Widgets For Elementor Security Bypass (1.2.1)