Vulnerability · Published Jun 30, 2026 · Assigned by WPScan
CVE-2026-11589WP Support Plus Responsive Ticket System <= 9.1.2 - Unauthenticated Stored XSS via File Upload
High 8.8
In plain English
A high-severity security flaw in WP Support Plus Responsive Ticket System from Unknown. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 43% of all known vulnerabilities).
Severity (CVSS 3.1)8.8High
Exploit odds (30 days)0.5%top 56.7% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
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 products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Unknown | WP Support Plus Responsive Ticket System | 0 – through 9.1.2 |
References
- https://wpscan.com/vulnerability/c46479c2-4eef-485f-ae98-1f487efa4263/ exploit, vdb-entry, technical-description