Medium severityPHPCryptographyLOW confidence
Weak Hash General
MD5/SHA-1 are cryptographically broken hash functions (CWE-327/CWE-328).
Standards mapping
- OWASP Top 10
- A02:2021 - Cryptographic Failures
- OWASP ASVS
- V6.2.1 (L2)
Vulnerable vs. safe
Flagged by this check
return md5($pw);Passes - the safe pattern
return hash('sha256', $data);Why it matters & how to fix it
MD5/SHA-1 are cryptographically broken hash functions (CWE-327/CWE-328). Do not use them for security purposes such as integrity, signatures, or tokens. Use SHA-256 or stronger (hash('sha256', ...)); for passwords use password_hash().
References
Rule ID integsec-php-weak-hash-general - engine: Opengrep - license: MIT - Copyright (c) IntegSec Inc.
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