Arbitrary File Upload Vulnerability in WordPress Ultimate Product Catalog by Etoile Web Design
CVE-2016-20075

8.7HIGH

Key Information:

Vendor

WordPress
Status
Ultimate Product Catalog
Vendor
CVE Published:
15 June 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2016-20075?

The WordPress Ultimate Product Catalog version 3.8.6 is susceptible to an arbitrary file upload vulnerability. Authenticated users with roles such as contributor, editor, author, or administrator can exploit this weakness through the custom fields feature in the Products tab. This allows attackers to upload malicious files, including PHP shells, to the server. Once uploaded, these files can be accessed via the upcp-product-file-uploads directory, enabling unauthorized code execution on the server and potentially compromising the security of the entire website.

Affected Version(s)

Ultimate Product Catalog 3.8.6

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-2016-20075 - Proof of Concept

References

https://www.exploit-db.com/exploits/40012
exploit
http://www.EtoileWebDesign.com/
product
https://www.vulncheck.com/advisories/wordpress-ultimate-p...
third-party-advisory

CVSS V4

Score:
8.7
Severity:
HIGH
Confidentiality:
High
Integrity:
High
Availability:
High
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

Joaquin Ramirez Martinez [ i0akiN SEC-LABORATORY ]
.