Active Probing & Surface
medium Severity
Free Check
Error Page Information Leakage
Triggers 404 and 500 error conditions to detect verbose stack traces, database error messages, or internal file paths.
Why It Matters
Raw stack traces reveal internal filesystem directories, database schemas, library versions, and coding bugs.
How We Check This
We send malformed requests and examine error responses for database exceptions, file system paths (/var/www, C:\), and stack frames.
How to Fix & Implement
Copy-paste configuration blocks tailored for your web server or edge proxy.
nginx snippet
error_page 404 /404.html; error_page 500 502 503 504 /50x.html;
Frequently Asked Questions
Why are custom error pages important?
They ensure users receive a friendly message while preventing attackers from discovering server architecture details.