CVE-2008-2638: 1-Script 1-Book

High severity, CVSS 10.0. EPSS: 3.9% chance of exploitation in the next 30 days.

Static code injection vulnerability in guestbook.php in 1Book 1.0.1 and earlier allows remote attackers to upload arbitrary PHP code via the message parameter in an HTML webform, which is written to data.php.

Affected products

• 1-Script 1-Book: up to and including 1.0.1

Published 2008-06-10. Last modified 2026-06-16.