Reflected Cross-Site Scripting in Ultimate WooCommerce Auction Pro Plugin by WordPress
CVE-2026-4259

7.1HIGH

Key Information:

Vendor

WordPress
Status
Ultimate-WooCommerce-auction-pro
Vendor
CVE Published:
22 June 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-4259?

The Ultimate WooCommerce Auction Pro plugin for WordPress before version 2.4.5 is vulnerable to reflected cross-site scripting (XSS). This vulnerability allows attackers to inject malicious scripts through unsanitized user input, specifically targeting the output displayed on the web page. As a result, high privilege users, including administrators, may be at risk of exposure to harmful content, which could lead to unauthorized actions and data compromises.

Affected Version(s)

ultimate-woocommerce-auction-pro 0 <= 2.4.5

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-2026-4259 - Proof of Concept

References

https://wpscan.com/vulnerability/a98d234b-11e8-4a07-8593-...
exploitvdb-entrytechnical-description

CVSS V3.1

Score:
7.1
Severity:
HIGH
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
Required
Scope:
Changed

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Kacper Rybczyński
WPScan
.