Unauthenticated Backdoor in Premium SEO WordPress Plugin by Unknown Vendor
CVE-2026-14812

10CRITICAL

Key Information:

Vendor

WordPress
Status
Premium Seo
Vendor
CVE Published:
6 August 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-14812?

The Premium SEO WordPress plugin contains a serious vulnerability that allows unauthorized access through an unauthenticated backdoor. This flaw creates a hidden administrator account, enabling potential attackers to gain full control over the affected WordPress site. In certain builds, it also facilitates remote code execution, server-side request forgery, and arbitrary script or content injection, posing significant risks to the security and integrity of websites utilizing this plugin.

Affected Version(s)

Premium SEO 0

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-2026-14812 - Proof of Concept

References

https://wpscan.com/vulnerability/0115a640-7139-4ef9-81be-...
exploitvdb-entrytechnical-description

CVSS V3.1

Score:
10
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Changed

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Erwan LR (WPScan)
WPScan
.