Unauthenticated Form Submission Vulnerability in ACF Frontend Admin Plugin by DynamiApps
CVE-2026-81343

5.3MEDIUM

Key Information:

Vendor

WordPress
Status
Acf Frontend Admin By Dynamiapps
Vendor
CVE Published:
17 October 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-81343?

The ACF Frontend Admin plugin for WordPress, up to version 3.29.13, suffers from an improper authentication flaw that allows unauthenticated users to submit forms and overwrite critical site-wide option values in the global ACF options store. This vulnerability arises from the absence of adequate capability checks on specific form submission actions, potentially leading to configuration changes and unauthorized access to sensitive site settings.

Affected Version(s)

ACF Frontend Admin by DynamiApps 0 <= 3.29.13

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-2026-81343 - Proof of Concept

References

https://wpscan.com/vulnerability/1919eb80-195e-48ed-b58e-...
exploitvdb-entrytechnical-description

CVSS V3.1

Score:
5.3
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Karthik Ramakrishnan
WPScan
.