PHP Object Injection in Admin Columns Plugin for WordPress
CVE-2026-7654

8.8HIGH

Key Information:

Vendor

WordPress
Status
Admin Columns
Vendor
CVE Published:
5 June 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-7654?

The Admin Columns plugin for WordPress is susceptible to a PHP Object Injection vulnerability due to insecure usage of the unserialize() function. This flaw allows authenticated users with Contributor access and higher to inject manipulated serialized PHP objects through post custom meta fields. By triggering this vulnerability, attackers can execute arbitrary code, effectively gaining control as the web server user. Immediate assessment and remediation of affected versions, specifically up to 7.0.18, is critical to maintaining the security of WordPress installations leveraging this plugin.

Affected Version(s)

Admin Columns 0 <= 7.0.18

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-2026-7654
Created by izxci

References

https://www.wordfence.com/threat-intel/vulnerabilities/id...
https://plugins.trac.wordpress.org/browser/codepress-admi...
https://plugins.trac.wordpress.org/browser/codepress-admi...

CVSS V3.1

Score:
8.8
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
Low
User Interaction:
None
Scope:
Unchanged

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Osvaldo Noe Gonzalez Del Rio
.