CVE-2026-11589 — HIGH (8.8)

Vulnerability 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.

CVSS Score

8.8

HIGH

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

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

REQUIRED

Scope

UNCHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

References

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

FAQ

What is CVE-2026-11589?

CVE-2026-11589 is a vulnerability with a CVSS score of 8.8 (HIGH). 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 (s...

How severe is CVE-2026-11589?

CVE-2026-11589 has been rated HIGH with a CVSS base score of 8.8/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-11589?

Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.