Kadence Memberships CVEs and Security Vulnerabilities

CVE-2026-114451

Kadence Memberships < 4.0.6 - Unauthenticated Table Collation Downgrade via 'rcp-action' Parameter

The Membership Plugin WordPress plugin before 4.0.6 does not perform any authorization or CSRF check before running a schema-altering database maintenance routine, allowing unauthenticated users to convert the Membership Plugin WordPress plugin before 4.0.6's own tables to a narrower character set, which irreversibly replaces every 4-byte character (such as emoji and some CJK characters) in the membership level, discount code and payment records with a question mark.

CVSS n/a EPSS < 1% KEV · Not listed

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Kadence Memberships

CVE-2026-114452

Kadence Memberships 3.2.17 - 4.0.5 - Subscriber+ Stripe Client Secret Disclosure and Payment Method Manipulation via IDOR

The Membership Plugin WordPress plugin before 4.0.6 does not verify that the membership referenced in a saved-card payment request belongs to the user making it, allowing subscriber-level members to disclose another member's Stripe payment client secret and attach a payment method of their choosing to another member's pending payment.