CVE-2026-77789mediumCWE-639

CVE-2026-77789: medium-severity vulnerability in Stripe Payment Forms by WP Full Pay

Stripe Payment Forms by WP Full Pay < 8.5.1 - Cross-Customer Subscription Modification via IDOR

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33Vexday Risk Score

No sign of exploitation. It has a public proof of concept.

ssvc Attendcvss 4.3epss 0.3%
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.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Affected products
Unknown · Stripe Payment Forms by WP Full Pay
⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
Related CVEs — Stripe Payment Forms by WP Full Pay

In the same product, most dangerous first.

CVE-2026-16734HIGHStripe Payment Forms by WP Full Pay < 8.5.2 - Unauthenticated Payment Intent Amount ManipulationEPSS 0.3%CVE-2026-77758MEDIUMStripe Payment Forms by WP Full Pay < 8.5.1 - Unauthenticated Customer Portal Subscription and Billing Data Disclosure via Unconfirmed SessionEPSS 0.3%CVE-2026-80311MEDIUMStripe Payment Forms by WP Full Pay < 8.5.5 - Cross-Customer Subscription Cancellation via IDOREPSS 0.3%