Cross-site scripting (XSS) vulnerability in single_pages\download_file.php in concrete5 before 5.6.3 allows remote attackers to inject arbitrary web script or HTML via the HTTP Referer header to index.php/download_file.
concrete5 before 5.6.3 allows remote attackers to obtain the installation path via a direct request to (1) system/basics/editor.php, (2) system/view.php, (3) system/environment/file_storage_locations.php, (4) system/mail/importers.php, (5) system/mail/method.php, (6) system/permissions/file_types.php, (7) system/permissions/files.php, (8) system/permissions/tasks.php, (9) system/permissions/users.php, (10) system/seo/view.php, (11) view.php, (12) users/attributes.php, (13) scrapbook/view.php, (14)…
concrete5 8.1.0 places incorrect trust in the HTTP Host header during caching, if the administrator did not define a "canonical" URL on installation of concrete5 using the "Advanced Options" settings. Remote attackers can make a GET request with any domain name in the Host header; this is stored and allows for arbitrary domains to be set for certain links displayed to subsequent visitors, potentially an XSS vector.
A bypass of adding remote files in Concrete CMS (previously concrete5) File Manager leads to remote code execution in Concrete CMS (concrete5) versions 8.5.6 and below.The external file upload feature stages files in the public directory even if they have disallowed file extensions. They are stored in a directory with a random name, but it's possible to stall the uploads and brute force the directory name. You have to be an admin with the ability to upload files, but this bug gives you the ability to…