Vulnerability · Published Aug 26, 2026 · Assigned by WPScan

CVE-2026-77789Stripe Payment Forms by WP Full Pay < 8.5.1 - Cross-Customer Subscription Modification via IDOR

Medium 4.3

In plain English

A medium-severity authorization bypass via user-controlled key in Stripe Payment Forms by WP Full Pay from Unknown. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 17% of all known vulnerabilities).

Severity (CVSS 3.1)4.3Medium

Exploit odds (30 days)0.3%top 82.9% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

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.

Affected products (as reported)

Vendor	Product	Versions
Unknown	Stripe Payment Forms by WP Full Pay	0 – before 8.5.1

Weakness: CWE-639 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

References

https://wpscan.com/vulnerability/b467131b-15e1-4d1e-9a6a-3ee6e8bd3722/ exploit, vdb-entry, technical-description