Authorization Flaw in Contact Form 7 PayPal Integration Plugin by WordPress
CVE-2026-105989

5.3MEDIUM

Key Information:

Vendor

WordPress
Status
Accept Paypal Payments Using Contact Form 7
Vendor
CVE Published:
10 October 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-105989?

A significant vulnerability exists in the Accept PayPal Payments using Contact Form 7 plugin for WordPress versions prior to 4.0.7. This flaw allows unauthenticated users to exploit an AJAX action that lacks proper authorization and request-validation checks. As a result, attackers can modify the status metadata of PayPal transactions, potentially affecting stored records and compromising post integrity within the WordPress site.

Affected Version(s)

Accept PayPal Payments using Contact Form 7 0 < 4.0.7

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-2026-105989 - Proof of Concept

References

https://wpscan.com/vulnerability/df2b15dd-1748-4dcf-8b4f-...
exploitvdb-entrytechnical-description

CVSS V3.1

Score:
5.3
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
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

Daniel Dhaniswara
WPScan
.