Guide Outlines Fixes for Common PHP Website Vulnerabilities

A DEV Community article explains how to address common security weaknesses in PHP websites, focusing on input validation, session handling, and safe file inclusion. It highlights the risk of malicious file uploads that can enable code execution, and recommends checking MIME type and file extension, citing PHP documentation. Session hijacking and fixation are addressed through session ID regeneration and secure cookie parameters. The piece also advises against using user-supplied data in include statements and suggests regular patching and a Web Application Firewall to reduce exposure.