Product
2 published CVES affecting phpversion php vx guestbook, from public sources (CVE.org, NVD, CISA KEV, FIRST EPSS, OSV).
Newest publication first
Free PHP VX Guestbook 1.06 allows remote attackers to bypass authentication and gain administrative access by setting the (1) admin_name and (2) admin_pass cookie values to 1.
Free PHP VX Guestbook 1.06 allows remote attackers to bypass authentication and download a backup of the database via a direct request to admin/backupdb.php.
Sources: CVE.org, NVD, CISA KEV, FIRST EPSS, OSV and public exploit-reference metadata. Product matching comes from the published CVE records. A proof-of-concept means public code exists; it is not evidence of exploitation.