A cross-site scripting (XSS) issue in Seo Panel 4.8.0 allows remote attackers to inject JavaScript via settings.php and the "category" parameter.
https://github.com/seopanel/Seo-Panel/issues/207
http://packetstormsecurity.com/files/162914/Seo-Panel-4.8.0-Cross-Site-Scripting.html