WCFM — WooCommerce Multivendor Membership <= 2.11.10 - Insecure Direct Object Reference to Limited Privilege Escalation via User Role Overwrite
CVE-2026-3688Published · Updated Action summary
Affected: ≤2.11.10Update to 2.11.11 or newer
All remediation steps- Severity
- High8.1
- CVSS
- 8.1CVSS 3.1 · CNA (Wordfence)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:HWhat does this vector mean?
AV:NAttack vector- Network
AC:LAttack complexity- Low
PR:LPrivileges required- Low
UI:NUser interaction- None
S:UScope- Unchanged
C:NConfidentiality- None
I:HIntegrity- High
A:HAvailability- High
- Required access
- Unknown
- Exploit prediction (EPSS)
- No score
- CISA KEV
- Not listed
On this page8
Am I affected?
WCFM Membership – WooCommerce Memberships for Multivendor Marketplace wc-multivendor-membership
- Affected≤ 2.11.10
- Patched in2.11.11
Update to 2.11.11 or newer.
You are affected if you run ≤ 2.11.10. Version 2.11.11 and later are not affected by this issue.
- Check your version: in wp-admin go to Plugins → Installed Plugins and read the version under WCFM Membership – WooCommerce Memberships for Multivendor Marketplace.
- No admin access? Run a passive check of your site. It reads public files only.
What to do
- Update to version 2.11.11, or a newer patched version
- Rotate administrator passwords and application secrets if the site ran a vulnerable version while publicly reachable.
- Watch WCFM Membership – WooCommerce Memberships for Multivendor Marketplace to get an email when the next vulnerability is published.
Advisory
Source description from Wordfence Intelligence, credited to Osvaldo Noe Gonzalez Del Rio (Os).
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.
Exploits & references
Proof-of-concept & detection
No public proof-of-concept or detection template is known for this vulnerability.
Advisories & patches
- Advisorywordfence.com
Related CVEs
More in WCFM Membership – WooCommerce Memberships for Multivendor Marketplace
All 14| Severity | Vulnerability | CVE | Published |
|---|---|---|---|
| Medium4.3 | Missing Authorization ≤2.12.0Update to 2.12.1 | CVE-2026-61990 | |
| High7.2 | Unauthenticated Stored Cross-Site Scripting ≤2.12.0Update to 2.12.1 | CVE-2026-39744 | |
| Medium6.3 | Authenticated (Subscriber+) Privilege Escalation ≤2.12.0Update to 2.12.1 | CVE-2026-12967 | |
| Medium5.3 | Missing Authorization ≤2.12.0Update to 2.12.1 | CVE-2026-39743 | |
| Medium4.3 | Missing Authorization ≤2.12.0Update to 2.12.1 | CVE-2026-39777 |
- Medium4.3Missing Authorization
≤2.12.0Update to 2.12.1
- High7.2Unauthenticated Stored Cross-Site Scripting
≤2.12.0Update to 2.12.1
- Medium6.3Authenticated (Subscriber+) Privilege Escalation
≤2.12.0Update to 2.12.1
- Medium5.3Missing Authorization
≤2.12.0Update to 2.12.1
- Medium4.3Missing Authorization
≤2.12.0Update to 2.12.1
Timeline
CVE published
Severity high, CVSS 8.1
Record last updated
Sources & licenses
Wordfence record- Vulnerability data
- Wordfence Intelligence. [object Object] Licensed under the CC BY-SA 4.0.
- CVE® identifiers
- [object Object]. Used under the CVE Program. CVE® is a registered trademark of The MITRE Corporation.
- CVSS / CWE
- National Vulnerability Database (NVD), shown unmodified. This product uses the NVD API but is not endorsed or certified by the NVD.
- VulnCrest content
- Summary, remediation guidance and page layout © VulnCrest. Not sourced from NVD.