Stored Cross-Site Scripting Vulnerability in WP Support Plus Responsive Ticket System Plugin
CVE-2026-11589

Currently unrated

Key Information:

Vendor

WordPress
Status
WP Support Plus Responsive Ticket System
Vendor
CVE Published:
30 June 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-11589?

The WP Support Plus Responsive Ticket System plugin for WordPress prior to version 9.1.2 lacks proper validation for uploaded files, enabling unauthenticated individuals to upload malicious files, including JavaScript code within HTML and SVG formats. This flaw may lead to Stored Cross-Site Scripting attacks which could compromise the security of site users and administrators by allowing the execution of harmful scripts in their web browsers.

Affected Version(s)

WP Support Plus Responsive Ticket System 0 <= 9.1.2

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-2026-11589 - Proof of Concept

References

https://wpscan.com/vulnerability/c46479c2-4eef-485f-ae98-...
exploitvdb-entrytechnical-description

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Ayush Srivastava
WPScan
.