Improper Input Validation in Contact Form 7 Plugin for WordPress
CVE-2026-14236

4.7MEDIUM

Key Information:

Vendor

WordPress
Status
Contact Form 7
Vendor
CVE Published:
27 July 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-14236?

The Contact Form 7 plugin for WordPress prior to version 2.5 fails to properly validate the host of user-provided return URLs. This oversight allows an attacker to craft malicious links that redirect users to arbitrary external sites during the success or cancel phase of a Stripe checkout process. Such a vulnerability can lead to phishing attempts and unauthorized access, compromising user security and trust.

Affected Version(s)

Contact Form 7 0 < 2.5

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-2026-14236 - Proof of Concept

References

https://wpscan.com/vulnerability/b53cc13d-c59e-4c11-aa71-...
exploitvdb-entrytechnical-description

CVSS V3.1

Score:
4.7
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
None
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Changed

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Pedro Antunes
WPScan
.