CVE-2026-77789
Received Received - Intake

Unauthorized Subscription Modification in WP Full Pay WordPress Plugin

Publication date: 2026-08-26

Last updated on: 2026-08-26

Assigner: WPScan

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.

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Meta Information

Published
2026-08-26
Last Modified
2026-08-26
Generated
2026-08-26
AI Q&A
2026-08-26
EPSS Evaluated
N/A
NVD
CVE-2026-77789
EUVD
EUVD-2026-66289

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
wp_full_pay stripe_payment_forms to 8.5.1 (exc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-639 The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data.

Attack-Flow Graph

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Executive Summary

This vulnerability is in the Stripe Payment Forms by WP Full Pay WordPress plugin before version 8.5.1. It allows a user with a valid portal session to cancel, reactivate, or modify subscriptions belonging to other customers without proper verification. This occurs because the plugin does not check if a subscription belongs to the customer associated with the session.

Impact Analysis

If exploited, this vulnerability could allow unauthorized users to interfere with other customers' subscriptions. This might lead to service disruptions, financial losses, or reputational damage for affected users or the plugin's users.

Compliance Impact

This vulnerability could impact compliance with GDPR and HIPAA by allowing unauthorized access to and modification of customer data. GDPR requires protecting personal data, while HIPAA mandates safeguarding health information. Unauthorized changes may violate these regulations.

Mitigation Strategies

Update the Stripe Payment Forms by WP Full Pay plugin to version 8.5.1 or later to address the vulnerability.

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