CVE-2026-77789
MediumCVSS 4.3Exploitation Probability (EPSS)
Low risk5th percentile - higher than 5% of all known CVEs
Summary
The Stripe Payment Forms by WP Full Pay WordPress plugin before version 8.5.1 does not verify that a subscription belongs to the customer bound to the requesting customer-portal session before acting on it. This allows a user with a confirmed portal session to cancel, reactivate or modify subscriptions belonging to other customers.
Risk Assessment
The risk includes compromise of subscription integrity for other customers, potentially leading to service disruptions, financial losses, or trust issues. Attackers could also exploit this to gain unauthorized access to subscription data.
Recommendation
Update the Stripe Payment Forms by WP Full Pay plugin to version 8.5.1 or later. Also review customer portal activity logs for unauthorized actions.
Other vulnerabilities in Stripe Payment Forms by WP Full Pay
See all- CVE-2026-80311Low risk· EPSS 3%
The Stripe Payment Forms by WP Full Pay WordPress plugin before 8.5.5 does not verify that a subscription belongs to the customer bound to the requesting customer-portal session before cancelling it, allowing a user with a confirmed portal session to cancel subscriptions belonging to other customers. Exploitation requires the attacker to know the target subscription's identifier, which is high-entropy and not enumerable.
- CVE-2026-77758Medium
The Stripe Payment Forms by WP Full Pay WordPress plugin before version 8.5.1 does not properly verify that a customer portal session has completed its confirmation step before returning data, allowing unauthenticated users to read another customer's subscription and billing information.
Original NVD description (English source)
The Stripe Payment Forms by WP Full Pay WordPress plugin before 8.5.1 does not verify that a subscription belongs to the customer bound to the requesting customer-portal session before acting on it, allowing a user with a confirmed portal session to cancel, reactivate or modify subscriptions belonging to other customers.