CVE-2022-4939

WCFM Membership <= 2.10.0 - Unauthenticated Privilege Escalation

Published Apr 5, 2023 CVSS 3.1 · 9.8 Critical EPSS 2.1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
Title WCFM Membership <= 2.10.0 - Unauthenticated Privilege Escalation
Weaknesses CWE-862
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
Wordfence
Published
Updated
Apr 8, 2026, 4:34 PM
Reserved
Apr 5, 2023, 5:51 PM
Status
Modified
Published
Apr 5, 2023, 7:15 PM
Modified
Jun 17, 2026, 5:22 AM