CVE-2026-4100 Details
Description
The Paid Memberships Pro plugin for WordPress is vulnerable to unauthorized modification and disruption of Stripe webhook configuration in all versions up to, and including, 3.6.5. This is due to missing capability checks on the `wp_ajax_pmpro_stripe_create_webhook`, `wp_ajax_pmpro_stripe_delete_webhook`, and `wp_ajax_pmpro_stripe_rebuild_webhook` AJAX handlers. This makes it possible for authenticated attackers, with Subscriber-level access and above, to delete, create, or rebuild the site's Stripe webhook, disrupting all payment processing, subscription renewal synchronization, cancellation handling, and failed payment management.
A vulnerability exists in the Paid Memberships Pro plugin for WordPress, affecting all versions through 3.6.5. The issue arises from a lack of proper capability checks in several AJAX handlers related to Stripe webhook management. This oversight allows authenticated attackers with Subscriber-level access or higher to unauthorizedly delete, create, or modify the site's Stripe webhook configuration. Such actions disrupt payment processing, subscription renewals, cancellations, and management of failed payments.
Users are advised to update the Paid Memberships Pro plugin to version 3.6.6 or a newer patched version.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed May 2, 2026CISA-ADP
Assessed May 4, 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://github.com/strangerstudios/paid-memberships-pro/pull/3615 | [email protected] | Issue TrackingSource CodeVendor |
| https://www.wordfence.com/threat-intel/vulnerabilities/id/5b333a3d-e416-42aa-9722-5406df0a64b3?source=cve | [email protected] | AdvisoryRemedy |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-862 | Missing Authorization | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| strangerstudios Paid Memberships Pro | <= 3.6.5 (semver) |
CPE
Remediation
| |
Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| May 2, 2026 | New CVE Received | [email protected] |