# CVE-2026-42378: WP Full Stripe Free broken authentication in WordPress plugin

Source: https://junglewise.ai/threats/cve-2026-42378-wp-full-stripe-free-broken-authentication-in-wordpress-plugin  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-06-15. Updated: 2026-06-15  
License: CC BY 4.0 with a link back

CVE-2026-42378 · Severity: medium · CVSS 6.5 · Published 2026-06-15

WP Full Stripe Free is a WordPress plugin used to accept payments and manage subscriptions via Stripe. A security flaw in versions 8.4.1 and earlier allows users with basic 'Subscriber' accounts to bypass authentication checks. This could allow an attacker to access sensitive information or perform actions typically reserved for administrators, potentially compromising the website's security and customer data.

Vendors: [Payment Plugins](https://junglewise.ai/threats/vendors/payment-plugins).

## Quick answers

**Is CVE-2026-42378 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-42378 being exploited in the wild.

**How severe is CVE-2026-42378?** Medium severity, with a CVSS score of 6.5, published 15 June 2026.

**Which products and versions are affected?** Payment Plugins WP Full Stripe Free <= 8.4.1.

**Is there a fix for CVE-2026-42378?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-42378 attacked?** It is attacked over the network, in a software library.

**Am I affected by CVE-2026-42378?** Check whether you run Payment Plugins WP Full Stripe Free at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

The WP Full Stripe Free plugin for WordPress is vulnerable to an authentication bypass (CWE-288) in versions up to and including 8.4.1. The flaw resides in the handling of authentication checks, which allows a user with Subscriber-level privileges to bypass intended restrictions. An attacker can exploit this over the network without user interaction to access high-privilege functionality or sensitive data. The vulnerability is classified as 'Broken Authentication' and could potentially lead to full administrative takeover. A fix is available in version 8.4.2.

## Affected products

- WP Full Stripe WP Full Stripe Free <= 8.4.1

## Timeline

- 2026-04-09: other: Reported by hhhai
- 2026-06-01: advisory: Patchstack advisory published
- 2026-06-15: disclosed: NVD publication date

## References

- [https://patchstack.com/database/wordpress/plugin/wp-full-stripe-free/vulnerability/wordpress-wp-full-stripe-free-plugin-8-4-1-broken-authentication-vulnerability?_s_id=cve](https://patchstack.com/database/wordpress/plugin/wp-full-stripe-free/vulnerability/wordpress-wp-full-stripe-free-plugin-8-4-1-broken-authentication-vulnerability?_s_id=cve)