The ajaxinit function in wpmarketplace/libs/cart.php in the WP Marketplace plugin 2.4.0 for WordPress allows remote authenticated users to create arbitrary users and gain admin privileges via a request to wpmp_pp_ajax_call with an execution target of wp_insert_user.
Severity
CVSS 3.1
8.8 high
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
EPSS
46% chance of exploitation in the next 30 days; higher than 98% of CVEs (scores of 2026-10-31)