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CVE-2021-24980 The Gwolle Guestbook WordPress plugin before 4.2.0 does not sanitise and escape the gwolle_gb_user_email parameter…
Description
The Gwolle Guestbook WordPress plugin before 4.2.0 does not sanitise and escape the gwolle_gb_user_email parameter before outputting it back in an attribute, leading to a Reflected Cross-Site Scripting issue in an admin page
Affected products and versions
| Product | Affected versions | Fixed in |
|---|---|---|
| Gwolle Guestbook 4.2 | earliest → < 4.2.0 | 4.2.0 |