October CMS vulnerabilities

October CMS through 1.0.428 does not prevent the use of .htaccess in themes, allowing remote authenticated users to execute arbitrary PHP code by downloading a theme ZIP archive from /backend/cms/themes, and then uploading and importing a modified archive with two new files: a .php file and a .htaccess file.

October CMS version 412 is vulnerable to PHP object injection in asset move functionality, allowing for the deletion of files limited by file permissions on the server.

October CMS version 412 is vulnerable to PHP code execution in the file upload functionality, potentially leading to site compromise and possibly affecting other applications on the server.

October CMS version 412 is vulnerable to file path modification in asset move functionality, potentially allowing the creation of malicious files on the server.

October CMS version 412 is vulnerable to PHP code execution in the asset manager functionality, potentially leading to site compromise and possibly affecting other applications on the server.

October CMS build 412 is vulnerable to Apache configuration modification via file upload functionality, potentially leading to site compromise and affecting other applications on the server.

October CMS versions prior to 3.7.14 and 4.1.10 contain a stored cross-site scripting vulnerability in the SVG sanitization logic. The regex pattern used to strip event handler attributes could be bypassed using a crafted payload, allowing malicious SVG files to be uploaded through the Media Manager with embedded JavaScript. Exploitation could lead to privilege escalation if a superuser views or embeds the malicious SVG, and requires authenticated backend access with media upload permissions.

October CMS before versions 3.7.14 and 4.1.10 contains a server-side information disclosure vulnerability in the INI settings parser. PHP's parse_ini_string() supports ${} syntax for environment variable interpolation, allowing attackers with Editor access to inject patterns like ${APP_KEY}, leading to exposure of sensitive environment variables.

Version 3.4.4 of October CMS contains a vulnerability that allows arbitrary file uploads, enabling attackers to execute arbitrary code via a crafted file.