Event Booking Manager for WooCommerce <= 5.7.8 - Authenticated (Shop Manager+) Privilege Escalation to 'page' Parameter

The Mage Eventpress plugin for WordPress is vulnerable to privilege escalation in versions up to, and including, 5.7.8 This is due to the mep_grant_shop_manager_access() function hooking user_has_cap and unconditionally granting manage_options whenever an attacker-controllable request marker matches — most notably $_GET['page'] starting with 'mep_' or 'mpwem_', which is never validated against an actually registered EventPress screen. This makes it possible for authenticated attackers, with Shop Manager-level access and above, to elevate their privileges to Administrator by appending ?page=mep_x to core admin URLs (options-general.

Source published

28 Oct 2026 06:45:05 UTC

Source modified

28 Oct 2026 16:10:34 UTC

Observed here

28 Oct 2026 17:46:48 UTC

Source terms

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CVSS 3.1 · 7.2 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H