Remote Code Execution in Spam Protect for Contact Form 7 Plugin by WordPress
CVE-2026-1540

7.2HIGH

Key Information:

Vendor

WordPress
Status
Spam Protect For Contact Form 7
Vendor
CVE Published:
2 April 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-1540?

The Spam Protect for Contact Form 7 WordPress plugin allows an unauthorized attacker with editor access to log specific information to a PHP file. This behavior can be exploited to execute arbitrary code on the server by crafting a malicious header. As such, it poses a security risk to websites utilizing this plugin, making it crucial for users to update to the latest version to mitigate potential exploitation.

Affected Version(s)

Spam Protect for Contact Form 7 0 < 1.2.10

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-2026-1540 - Proof of Concept

References

https://wpscan.com/vulnerability/ad00d1bb-ea8d-44a3-9064-...
exploitvdb-entrytechnical-description

CVSS V3.1

Score:
7.2
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
High
User Interaction:
None
Scope:
Unchanged

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Chiao-Lin Yu (Steven Meow)
WPScan
.