Barracuda Web Application Firewall (WAF) 7.8.1.013 allows remote attackers to bypass authentication by leveraging a permanent authentication token obtained from a query string.

Barracuda products, confirmed in Spam & Virus Firewall, SSL VPN, and Web Application Firewall versions prior to October 2010, contain a path traversal vulnerability in the viewhelp.cgi endpoint. The locale parameter fails to properly sanitize user input, allowing attackers to inject traversal sequences and null-byte terminators to access arbitrary files on the underlying system. By exploiting this flaw, unauthenticated remote attackers can retrieve sensitive configuration files such as /mail/snapshot/config.snapshot, potentially exposing credentials, internal settings, and other critical data.

Barracuda Networks Email Security Gateway (ESG), Load Balancer, Application Delivery Controller (ADC), Message Archiver (BMA), WAF Control Center (WCC), Web Application Firewall (WAF), and Web Security Gateway (WSG) contain an OS command injection vulnerability. This vulnerability could allow an authenticated administrator to inject OS commands that execute with root privileges when the crafted timezone value is subsequently processed. This vulnerability can be chained with CVE-2026-116606