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.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Wp Subscribe Form Plugin | — | Update wp-subscribe-form plugin to version 1.6.3, or a newer patched version | Oct 30, 2026 | Sep 21, 2026 |
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