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.
Published 2023-04-05 19:15:07
Updated 2023-04-12 01:41:17
Source Wordfence
View at NVD,   CVE.org
Vulnerability category: Gain privilege

Products affected by CVE-2022-4939

Exploit prediction scoring system (EPSS) score for CVE-2022-4939

0.20%
Probability of exploitation activity in the next 30 days EPSS Score History
~ 59 %
Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2022-4939

Base Score Base Severity CVSS Vector Exploitability Score Impact Score Score Source First Seen
9.8
CRITICAL CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
3.9
5.9
NIST
9.8
CRITICAL CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
3.9
5.9
Wordfence

CWE ids for CVE-2022-4939

  • The product does not perform an authorization check when an actor attempts to access a resource or perform an action.
    Assigned by: security@wordfence.com (Primary)
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