OpenMage LTS: Customer File Upload Extension Blocklist Bypass → Remote Code Execution

The product custom option file upload in OpenMage LTS uses an incomplete blocklist "forbiddenextensions = php,exe" to prevent dangerous file uploads. This blocklist can be trivially bypassed by using alternative PHP-executable extensions such as ".phtml", ".phar", ".php3", ".php4", ".php5",...

PT-2026-33803

Name of the Vulnerable Software and Affected Versions Magento Long Term Support LTS versions prior to 20.17.0 Description The product custom option file upload feature uses an incomplete blocklist forbidden extensions = php,exe to prevent dangerous file uploads. This restriction can be bypassed b...