CVE-2006-6259: Alternc

High severity, CVSS 10.0. EPSS: 3.8% chance of exploitation in the next 30 days.

Multiple directory traversal vulnerabilities in (a) class/functions.php and (b) class/m_bro.php in AlternC 0.9.5 and earlier allow remote attackers to (1) create arbitrary files and directories via a .. (dot dot) in the "create name" field and (2) read arbitrary files via a .. (dot dot) in the "web root" field when configuring a subdomain.

Affected products

• Alternc Alternc: up to and including 0.9.5

Published 2006-12-04. Last modified 2026-06-16.