imFAQ is an advanced questions and answers management system for ImpressCMS. Prior to 1.0.1, if the $_GET['seoOp'] parameter is manipulated to include malicious input (e.g., seoOp=php://filter/read=convert.base64-encode/resource=/var/www/html/config.php), the application could allow an attacker to read sensitive files on the server (Local File Inclusion, LFI). The $_GET['seoOp'] and $_GET['seoArg'] parameters are directly used without sanitization or validation. This is partly mitigated by the fact that the ImpressCMS sensitive files are stored outside the web root, in a folder with a randomized name. The issue has been resolved in imFaq 1.0.1.
imFAQ allows local file inclusion in seo.php