Authorization Bypass in Payment Plugins for PayPal WooCommerce by WordPress
CVE-2026-13399

7.5HIGH

Key Information:

Vendor

WordPress
Status
Payment Plugins For Paypal WooCommerce
Vendor
CVE Published:
6 August 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-13399?

The Payment Plugins for PayPal WooCommerce before version 2.0.20 lacks necessary authorization checks on a critical REST endpoint. This vulnerability enables unauthorized users to bypass the payment process, potentially leading to unauthorized transactions or exposure to sensitive payment data. Proper security measures are vital to ensure that payment processing remains secure and reliable.

Affected Version(s)

Payment Plugins for PayPal WooCommerce 0 < 2.0.20

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-13399 - Proof of Concept

References

https://wpscan.com/vulnerability/6ae19ba0-26ba-4ffa-94e3-...
exploitvdb-entrytechnical-description

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
High
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Shivamani Vastrala
WPScan
.