What’s Vulnerable › Vulnerabilities
CVE-2026-80311: Stripe Payment Forms by WP Full Pay < 8.5.5 - Cross-Customer Subscription Cancellation via IDOR
- Severity: medium (CVSS 4.3 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.3% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-08-29 · updated 2026-08-31
- Weakness: CWE-639
Description
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 through the Stripe Payment Forms by WP Full Pay WordPress plugin before 8.5.5.
Affected products
- Stripe Payment Forms by WP Full Pay: before 8.5.5 — fixed in 8.5.5
How to fix
Upgrade to a fixed version: Stripe Payment Forms by WP Full Pay 8.5.5. Check the vendor advisory for mitigations.
References
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