CVE-2022-4940
Published: 05 April 2023
Summary
CVE-2022-4940 is a high-severity Missing Authorization (CWE-862) vulnerability in Wclovers Wcfm Membership. Its CVSS base score is 7.3 (High).
Operationally, ranked in the top 10.7% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog.
Deeper analysis
The WCFM Membership plugin for WordPress is vulnerable to unauthorized modification and access of data in versions up to and including 2.10.0 due to missing capability checks on various AJAX actions. This flaw, tracked as CWE-862, affects the plugin's handling of membership-related operations and carries a CVSS 3.1 score of 7.3.
Unauthenticated attackers can exploit the issue over the network to modify membership details, alter renewal information, control membership approvals, and perform other actions without any user interaction or authentication.
Public references point to multiple WordPress plugin trac changesets that address the missing authorization checks, indicating that updates to later versions of the plugin contain the fixes. The associated EPSS score rose from a low baseline to a peak of 0.1609 before receding to the current value of 0.0444.
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2022-52194
Vulnerability details
The WCFM Membership plugin for WordPress is vulnerable to unauthorized modification and access of data in versions up to, and including, 2.10.0 due to missing capability checks on various AJAX actions. This makes it possible for unauthenticated attackers to perform…
more
a wide variety of actions such as modifying membership details, changing renewal information, controlling membership approvals, and more.
- CWE(s)
Related Threats
No named actor attribution yet. ATT&CK technique mapping in progress for this CVE.
Affected Assets
Mitigating Controls
Likely Mitigating Controls AI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Requiring an access control policy ensures authorization checks are defined and applied for critical functions.
Reviews of access controls detect missing authorization checks on critical functions or resources.
Documenting permitted unauthenticated actions prevents missing authorization by making all exceptions explicit and subject to organizational review.
Requiring attribute association with information prevents authorization from being performed without necessary security or privacy context.
Mandating authorization prior to allowing remote connections addresses missing authorization for remote access.
Mandating authorization before wireless connections are allowed prevents missing authorization for wireless access.
The control requires authorization before allowing mobile device connections, directly mitigating missing authorization for system access.
Requiring approvals for account creation and specifying authorizations ensures authorization is not missing for system access.