Problem Statement
Across modern web apps, which risk most often causes users to act outside their permissions?
Explanation
Broken access control lets a user reach data or actions they should not. Common causes include missing server-side checks, IDOR issues, and deny-by-default not enforced. OWASP lists this as the top web risk and gives practical examples and fixes.
Code Solution
SolutionRead Only
if (resource.ownerId !== auth.userId) return res.status(403).end();
