OWASP A10:2025 Mishandling of Exceptional Conditions: Three Failures, Tested
The OWASP Top 10:2025 added a category that most teams will recognise from their own code: A10, Mishandling of Exceptional Conditions. It covers what happens when something goes wrong: a dependency is down, a value is missing, a step in the middle of a transaction fails. The risk is not the failure itself but what the application does next. OWASP describes A10 as a new category covering improper error handling, logical errors and failing open. Its description says programs "fail to prevent, dete
🎯 Vulnerability: Web Security Vulnerability
💡 Defense Fix: Implement strict input validation, contextual output encoding, and enforce least-privilege authorization controls.