{"id":"CVE-2026-3688","state":"PUBLISHED","title":"WCFM - WooCommerce Multivendor Membership <= 2.11.10 - Insecure Direct Object Reference to Limited Privilege Escalation via User Role Overwrite","description":"The WCFM Membership – WooCommerce Memberships for Multivendor Marketplace plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 2.11.10. This is due to the 'wcfmvm_membership_change' AJAX action not validating user permission to modify other users. This makes it possible for authenticated attackers, with vendor level access and above, to change any user's role to 'wcfm_vendor' by changing their membership plan.","publishedAt":"2026-07-08T11:35:40.708Z","updatedAt":"2026-07-08T15:01:02.908Z","severity":{"score":8.1,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H","source":"Wordfence"},"assigner":"Wordfence","products":["wclovers WCFM Membership – WooCommerce Memberships for Multivendor Marketplace"],"affected":[{"vendor":"wclovers","product":"WCFM Membership – WooCommerce Memberships for Multivendor Marketplace","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"2.11.10","versionType":"semver"}]}],"references":["https://www.wordfence.com/threat-intel/vulnerabilities/id/8a934ccd-9330-4585-9994-838940d24980?source=cve","https://plugins.trac.wordpress.org/changeset/3520777/wc-multivendor-membership"],"weaknesses":["CWE-639"],"ingestedAt":"2026-10-29T20:11:50.837Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/3xxx/CVE-2026-3688.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-3688","state":"PUBLISHED","datePublished":"2026-07-08T11:35:40.708Z","dateUpdated":"2026-07-08T15:01:02.908Z","assignerShortName":"Wordfence","assignerOrgId":"b15e7b5b-3da4-40ae-a43c-f7aa60e62599","dateReserved":"2026-03-06T23:43:39.850Z"},"containers":{"cna":{"title":"WCFM - WooCommerce Multivendor Membership <= 2.11.10 - Insecure Direct Object Reference to Limited Privilege Escalation via User Role Overwrite","descriptions":[{"lang":"en","value":"The WCFM Membership – WooCommerce Memberships for Multivendor Marketplace plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 2.11.10. This is due to the 'wcfmvm_membership_change' AJAX action not validating user permission to modify other users. This makes it possible for authenticated attackers, with vendor level access and above, to change any user's role to 'wcfm_vendor' by changing their membership plan."}],"affected":[{"vendor":"wclovers","product":"WCFM Membership – WooCommerce Memberships for Multivendor Marketplace","defaultStatus":"unaffected","versions":[{"version":"0","status":"affected","lessThanOrEqual":"2.11.10","versionType":"semver"}]}],"references":[{"url":"https://www.wordfence.com/threat-intel/vulnerabilities/id/8a934ccd-9330-4585-9994-838940d24980?source=cve"},{"url":"https://plugins.trac.wordpress.org/changeset/3520777/wc-multivendor-membership"}],"metrics":[{"cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H","baseScore":8.1,"baseSeverity":"HIGH"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-639","lang":"en","description":"CWE-639 Authorization Bypass Through User-Controlled Key","type":"CWE"}]}],"providerMetadata":{"shortName":"Wordfence","orgId":"b15e7b5b-3da4-40ae-a43c-f7aa60e62599","dateUpdated":"2026-07-08T11:35:40.708Z"},"credits":[{"lang":"en","type":"finder","value":"Osvaldo Noe Gonzalez Del Rio (Os)"}],"timeline":[{"time":"2026-01-10T00:00:00.000Z","lang":"en","value":"Discovered"},{"time":"2026-03-07T00:00:35.000Z","lang":"en","value":"Vendor Notified"},{"time":"2026-07-07T23:34:27.000Z","lang":"en","value":"Disclosed"}]},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-07-08T15:00:56.429002Z","id":"CVE-2026-3688","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-07-08T15:01:02.908Z"}}]}}}