CVE-2026-11589

WP Support Plus Responsive Ticket System <= 9.1.2 - Unauthenticated Stored XSS via File Upload

The WP Support Plus Responsive Ticket System WordPress plugin through 9.1.2 does not properly validate uploaded files, allowing unauthenticated users to upload files containing malicious JavaScript (such as HTML or SVG) to a publicly accessible location, leading to Stored Cross-Site Scripting attacks against site users and administrators.

Affected

WP Support Plus Responsive Ticket System

CVSS v3.1 CNA

8.8 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

EPSS

0.51% chance of exploitation in the next 30 days, 42nd percentile

Published

2026-06-30

Proof-of-concept exploits (1)

• https://wpscan.com/vulnerability/c46479c2-4eef-485f-ae98-1f487efa4263/

References

• CVE Record
• NVD entry