CVE-2026-8151 Details
Description
The Simple Membership MailChimp Integration WordPress plugin before 1.9.8 does not have CSRF checks in its settings page, allowing attackers to trick a logged-in administrator into changing the configured third-party API key. Once replaced, all subsequent member registration data (name, email, membership level) is sent to the attacker-controlled account.
A Cross-Site Request Forgery (CSRF) vulnerability has been identified in the Simple Membership MailChimp Integration WordPress plugin, affecting versions prior to 1.9.8. The vulnerability arises because the plugin's settings page lacks CSRF protection, allowing attackers to manipulate the MailChimp API key of a logged-in administrator. Once the API key is changed, all new member registration data is sent to the attacker's MailChimp account.
Users are advised to update the Simple Membership MailChimp Integration WordPress plugin to version 1.9.8 or later.
Metrics
CVSS 4.0 Severity and Vector Strings:
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Sep 2, 2026CISA-ADP
Assessed Sep 2, 2026References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://plugins.trac.wordpress.org/browser/simple-membership-mailchimp-integration/trunk/swpm-mailchimp-admin-menu.php#L12 | [email protected] | Source CodeVendor |
| https://wpscan.com/vulnerability/c7002cf8-83db-4e1f-a6e9-230293290635/ | [email protected] | AdvisoryExploitRemedy |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-352 | Cross-Site Request Forgery (CSRF) | CISA-ADP |
Affected Products
| Product | Versions |
|---|---|
| Simple Membership MailChimp Integration | < 1.9.8 (semver) |
CPE
Remediation
| |
Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Sep 2, 2026 | New CVE Received | [email protected] |
| Sep 2, 2026 | CVE Modified | CISA-ADP |
Volerion