Cross-Site Request Forgery in WordPress More Fields Plugin by WordPress
CVE-2016-20083

6.9MEDIUM

Key Information:

Vendor

WordPress
Status
More Fields
Vendor
CVE Published:
15 June 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2016-20083?

The More Fields Plugin version 2.1 for WordPress is susceptible to a cross-site request forgery vulnerability. This flaw enables malicious actors to execute unauthorized actions on behalf of logged-in administrators by circumventing CSRF token validation. By luring administrators to visit crafted malicious pages, an attacker can leverage this vulnerability to manipulate custom fields and settings via unauthorized POST and GET requests directed at the options-general.php endpoint.

Affected Version(s)

More Fields 2.1

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-2016-20083 - Proof of Concept

References

https://www.exploit-db.com/exploits/39507
exploit
https://wordpress.org/support/plugin/more-fields
product
https://www.vulncheck.com/advisories/wordpress-more-field...
third-party-advisory

CVSS V4

Score:
6.9
Severity:
MEDIUM
Confidentiality:
None
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Aatif Shahdad
.