CVE-2026-91073
The Subscribe Forms WordPress plugin before 1.6.3 does not sanitise and escape one of its form settings before outputting it in a page, allowing authenticated users with the Author role and above to perform Stored Cross-Site Scripting attacks that execute in the browser of any visitor who views a page embedding the form, including logged-out visitors and administrators.
- Published Sep 23, 2026
- CVSS 6.8 medium
- 0.2% chance of exploitation in the next 30 days (EPSS)
- A fix is available