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.

• https://wpscan.com/vulnerability/50d0d5b6-2204-4af3-92d5-75085ce2f176/