*Description:* Affected Component:  
*Vulnerability Type:* Path Traversal*Vendor of Product:  
*Advanced Comment System - ACS  
*Version:* v1.0  
*Attack Type:* Remote  
*Impact:* A path traversal attack (also known as directory traversal) aims  
to access files and directories that are stored outside the web root  
folder. By manipulating variables that reference files with “dot-dot-slash  
(../)” sequences and its variations or by using absolute file paths, it may  
be possible to access arbitrary files and directories stored on file system  
including application source code or configuration and critical system  
files. It should be noted that access to files is limited by system  
operational access control (such as in the case of locked or in-use files  
on the Microsoft Windows operating system). This attack is also known as  
“dot-dot-slash”, “directory traversal”, “directory climbing” and  
*Credits:* Francisco Javier Santiago Vázquez aka "n0ipr0cs"  
*Disclosure Timeline:* The product is discontinued.