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Critical · 9.8 Public exploit CVE-2022-4939 EUVD-2022-52193GHSA-qxmh-28j4-pv6f

WCFM Membership <= 2.10.0 - Unauthenticated Privilege Escalation

Published Apr 5, 2023 · Updated Apr 8, 2026 · Assigned by Wordfence

Vendor: WC Lovers Product: WCFM Membership – WooCommerce Memberships for Multivendor Marketplace Category: Web / CMS

Description

THe WCFM Membership plugin for WordPress is vulnerable to privilege escalation in versions up to, and including 2.10.0, due to a missing capability check on the wp_ajax_nopriv_wcfm_ajax_controller AJAX action that controls membership settings. This makes it possible for unauthenticated attackers to modify the membership registration form in a way that allows them to set the role for registration to that of any user including administrators. Once configured, the attacker can then register as an administrator.

Affected products

VendorProductAffectedFixed
wclovers WCFM Membership – WooCommerce Memberships for Multivendor Marketplace ≤ 2.10.0 —

Public exploits

Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.

Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.

GitHub 1 repository

Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.

References