What is CVE-2022-4939?

CVE-2022-4939 is a critical-severity vulnerability in Wclovers Wcfm_membership, classified under Missing Authorization. CVSS score: 9.8/10. Published 2023-04-05.

How severe is CVE-2022-4939?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Is CVE-2022-4939 known to be exploited?

3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

Auth bypass in Wclovers Wcfm_membership

CVE-2022-4939

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 setti…

Vulnerability class: Broken Access Control

EPSS: 0.021 (79.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

CWE-862 — Missing Authorization

Public proof-of-concept exploits

References

security@wordfence.com (Patch, Third Party Advisory)
security@wordfence.com (Patch)

Frequently asked questions

What is CVE-2022-4939?: CVE-2022-4939 is a critical-severity vulnerability in Wclovers Wcfm_membership, classified under Missing Authorization. CVSS score: 9.8/10. Published 2023-04-05.
How severe is CVE-2022-4939?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2022-4939 known to be exploited?: 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.