Read the docs
TI-2022-04530 Aliases CVE-2022-4939GHSA-qxmh-28j4-pv6f

WCFM Membership <= 2.10.0 - Unauthenticated Privilege Escalation

Priority MEDIUM 53CWE-862Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-862.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.02099 81st percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
wcloversWCFM Membership – WooCommerce Memberships for Multivendor Marketplaceup to 2.10.0—No fix listedCNA
  • WCFM Membership – WooCommerce Memberships for Multivendor Marketplace Vendorwclovers Affected up to 2.10.0 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:wclovers:wcfm_membership:*:*:*:*:*:wordpress:*:*before 2.10.1Vulnerablewclovers
  • cpe:2.3:a:wclovers:wcfm_membership:*:*:*:*:*:wordpress:*:* Versions before 2.10.1 Vulnerable ·wclovers

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2022-4939
  2. 2026-10-03 Alias added: GHSA-qxmh-28j4-pv6f

References

Patch 2

  • TI-2023-02134 Authorization bypass in wclovers WCFM Membership – WooCommerce Memberships for… CVSS 3.1CRITICAL 9.8
  • TI-2022-04531 WCFM Membership <= 2.10.0 - Missing Authorization CVSS 3.1HIGH 7.3
  • TI-2022-04532 WCFM Membership <= 2.9.10 - Cross-Site Request Forgery CVSS 3.1HIGH 8.8

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences