How PHP Password Reset Flows Become Account Takeover Vulnerabilities

A detailed security analysis highlights how PHP and Laravel developers often combine individually sound concepts incorrectly when building password reset features, resulting in serious account takeover vulnerabilities. Common mistakes include using predictable token sources like md5(time()), uniqid(), or mt_rand() instead of the cryptographically secure random_bytes() function. Even when tokens are generated securely, storing them in plaintext exposes users to risk if the database is ever compromised through SQL injection or misconfigured backups. The article recommends hashing tokens with SHA-256 before storage, mirroring best practices already applied to passwords. It also covers additional failure points such as missing rate limiting, unsafe string comparisons, and inadequate session invalidation after a password change.