Advanced Guestbook 2.4.4 contains a persistent cross-site scripting vulnerability in the smilies administration interface that allows authenticated attackers to inject malicious scripts by manipulating the s_emotion parameter. Attackers can submit POST requests to admin.php with JavaScript code in the s_emotion field, which executes when administrators view the smilies tab.

AMPPS 2.7 contains a denial of service vulnerability that allows remote attackers to crash the service by sending malformed data to the default HTTP port. Attackers can establish multiple socket connections and transmit invalid payloads to exhaust server resources and cause service unavailability.