What is CVE-2026-77789?

CVE-2026-77789 is a medium-severity vulnerability in Stripe Payment Forms By Wp Full Pay, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 4.3/10. Published 2026-08-26.

How severe is CVE-2026-77789?

Medium severity. CVSS v3 base score is 4.3 out of 10.

Auth bypass in Stripe Payment Forms By Wp Full Pay

CVE-2026-77789

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.

Vulnerability class: IDOR (Insecure Direct Object Reference)

EPSS: 0.002 (5.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: 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

Weakness classification (CWE)

CWE-639 — Authorization Bypass Through User-Controlled Key

References

contact@wpscan.com (technical-description, exploit, vdb-entry)

Frequently asked questions

What is CVE-2026-77789?: CVE-2026-77789 is a medium-severity vulnerability in Stripe Payment Forms By Wp Full Pay, classified under Authorization Bypass Through User-Controlled Key. CVSS score: 4.3/10. Published 2026-08-26.
How severe is CVE-2026-77789?: Medium severity. CVSS v3 base score is 4.3 out of 10.