CVE-2021-47950
MEDIUM
NVD
CVSS Score
6.4
Severity
MEDIUM
Published
May 10, 2026
Vendor
unknown
Description
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.