Unauthorized User Account Access in Advanced Custom Fields Plugin for WordPress
CVE-2026-12526

8.1HIGH

Key Information:

Vendor

WordPress
Status
Advanced Custom Fields: Extended
Vendor
CVE Published:
2 September 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-12526?

The Advanced Custom Fields: Extended plugin prior to version 0.9.2.7 is susceptible to an authorization bypass vulnerability. This flaw allows unauthenticated users to exploit front-end forms, enabling them to tamper with user accounts, specifically targeting administrators. By manipulating the form configurations, an attacker can overwrite the password of specifically targeted user accounts, potentially taking over the accounts without proper verification and authorization.

Affected Version(s)

Advanced Custom Fields: Extended 0 < 0.9.2.7

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-2026-12526 - Proof of Concept

References

https://wpscan.com/vulnerability/a4a9eab6-3c10-402c-a635-...
exploitvdb-entrytechnical-description

CVSS V3.1

Score:
8.1
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
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

Khaled Alenazi (Nxploited)
WPScan
.