XPath injection attacks are a type of code injection attack that can compromise website security and data. These attacks occur when malicious actors exploit vulnerabilities in websites' use of XML databases to access sensitive data. To prevent XPath injection attacks, it's essential to sanitize user-supplied input, use parameterized XPath queries, and especially precompiled XPath queries, which are constructed from static data only. Regularly reviewing and testing code for potential vulnerabilities is also crucial. By implementing these preventative measures, developers can protect their applications against XPath injection attacks and prevent severe consequences such as data exfiltration, privilege escalation, and damage to reputation.