Security issue

Hello

There is a XS flaw in the plugin:

http://example.com/wp-admin/options-general.php?page=subscribe-to-comments-reloaded/options/index.php&subscribepanel=1&srf=email&srt=equals&srv=XSS same for sre etc
Can you sanitize this ?

Thank you

http://ww.wp.xz.cn/extend/plugins/surveys/