CVE-2019-25738
CriticalCVSS 9.8Exploitation Probability (EPSS)
Low risk27th percentile - higher than 27% of all known CVEs
Summary
WordPress Hybrid Composer plugin version 1.4.6 contains an unauthenticated settings change vulnerability. An attacker can send a POST request to admin-ajax.php with the action parameter set to hc_ajax_save_option to enable user registration and set the default role to administrator.
Risk Assessment
Risk of administrator account takeover and full control over the WordPress site by an unauthenticated attacker.
Recommendation
Update the Hybrid Composer plugin to the latest version or remove it if not essential.
Original NVD description (English source)
WordPress Hybrid Composer 1.4.6 contains an unauthenticated settings change vulnerability that allows unauthenticated attackers to modify WordPress options by exploiting the hc_ajax_save_option action. Attackers can send POST requests to the admin-ajax.php endpoint with the action parameter set to hc_ajax_save_option to enable user registration and set the default role to administrator, enabling account takeover.