Security readout for executives and security teams
Plain-English summary
This affects the WCFM Membership WordPress plugin used with WooCommerce multivendor membership sites. In affected versions through 2.10.0, some AJAX actions lacked authorization checks, allowing unauthenticated visitors to change or access membership-related data. Business risk is unauthorized marketplace membership manipulation and operational disruption.
Executive priority
Prioritize remediation for any public WordPress marketplace using this plugin. The issue does not require user login and can affect membership operations, so delay increases business integrity risk even without confirmed active exploitation evidence.
Technical view
CVE-2022-4940 is a CWE-862 missing authorization issue in WCFM Membership. The CVSS 3.1 score is 7.3, with network attack vector, low complexity, no privileges, and no user interaction. Reported impacts include limited confidentiality, integrity, and availability compromise through unauthenticated AJAX action abuse.
Likely exposure
Exposure is likely limited to WordPress sites running WCFM Membership – WooCommerce Memberships for Multivendor Marketplace at versions up to and including 2.10.0. Sites without this plugin, or running outside the affected range, are not indicated as exposed by the supplied sources.
Exploitation context
The source bundle does not show CISA KEV listing or cited evidence of active exploitation. However, the vulnerability is remotely reachable, unauthenticated, low complexity, and affects administrative membership workflows, so internet-facing WordPress marketplaces should treat it as urgent.
Researcher notes
The supplied record names missing capability checks across various AJAX actions but does not include exploit details. Keep validation defensive: version detection, log review, and integrity checks. The affected-version evidence is strongest in the CVE description and Wordfence reference; confirm fixed release details from vendor sources.
Mitigation direction
- Inventory all WordPress sites for the WCFM Membership plugin and installed version.
- Upgrade affected installations to a vendor-supported version outside the vulnerable range.
- If upgrading is not possible, disable the plugin until vendor guidance is confirmed.
- Review membership records, approvals, and renewal settings for unauthorized changes.
- Check Wordfence and WordPress plugin history for current remediation guidance.
Validation and detection
- Confirm whether wc-multivendor-membership is installed on production, staging, and backup sites.
- Verify no active site is running WCFM Membership version 2.10.0 or earlier.
- Review web and WordPress logs for unusual unauthenticated AJAX activity against membership actions.
- Validate membership approval, renewal, and pricing data against trusted business records.
- Document remediation status and remaining exceptions for each WordPress property.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-862: Authorization and privilege behavior lookup
Authorization weaknesses can support privilege escalation and valid-account review, depending on exploit path. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2022-4940 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- High
- CVSS
- 7.3 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L3.93.4Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
7.3HighVector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Source materials
- CVE List V5 sourceCVE List V5
- https://www.wordfence.com/threat-intel/vulnerabilities/id/9c6577a2-6722-4d3b-958d-1143dca414cd?source=cveCVE reference
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=2633191%40wc-multivendor-membership&new=2633191%40wc-multivendor-membership&sfp_email=&sfph_mail=CVE reference
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=2632641%40wc-multivendor-membership&new=2632641%40wc-multivendor-membership&sfp_email=&sfph_mail=CVE reference
- https://plugins.trac.wordpress.org/changeset?sfp_email=&sfph_mail=&reponame=&old=2605020%40wc-multivendor-membership&new=2605020%40wc-multivendor-membership&sfp_email=&sfph_mail=CVE reference
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Missing Authorization
Missing Authorization represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.