CVE-2026-11589

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 v3.1

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, 41th percentile

Published

2026-06-30

Proof-of-concept exploits (1)

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

References

• CVE Record
• NVD entry

Related

• CVE-2026-11588
• CVE-2026-1159
• CVE-2026-11585
• CVE-2026-11590
• CVE-2026-11584
• CVE-2026-1160