Arbitrary Email Sending Flaw in Estatik Real Estate Plugin for WordPress
CVE-2026-18044

3.7LOW

Key Information:

Vendor

WordPress
Status
Estatik Real Estate Plugin
Vendor
CVE Published:
12 August 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-18044?

The Estatik Real Estate Plugin for WordPress features a significant flaw where it fails to properly validate the recipient list intended for messages generated via its property request form. This oversight allows unauthenticated users to exploit the functionality and send emails to any arbitrary recipient, with the flexibility to manipulate the subject, body, and Reply-To headers. This poses a risk to sites where the form is configured to route messages to a custom address, potentially leading to phishing attacks or unauthorized information dissemination.

Affected Version(s)

Estatik Real Estate Plugin 0 < 4.3.4

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-2026-18044 - Proof of Concept

References

https://wpscan.com/vulnerability/87623f1e-c0fa-4563-af13-...
exploitvdb-entrytechnical-description

CVSS V3.1

Score:
3.7
Severity:
LOW
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
High
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Erwan LR (WPScan)
WPScan
.