Medium severityPHPInsecure DeserializationMEDIUM confidence
Unserialize Allowed Classes True
unserialize() is called with 'allowed_classes' => true, which permits instantiation of any class and reintroduces PHP object injection risk (CWE-502).
Standards mapping
- OWASP Top 10
- A08:2021 - Software and Data Integrity Failures
- OWASP ASVS
- V5.5.3 (L1)
Vulnerable vs. safe
Flagged by this check
return unserialize($blob, ["allowed_classes" => true]);Passes - the safe pattern
return unserialize($blob, ["allowed_classes" => false]);Why it matters & how to fix it
unserialize() is called with 'allowed_classes' => true, which permits instantiation of any class and reintroduces PHP object injection risk (CWE-502). Set 'allowed_classes' => false, or restrict to an explicit list of safe classes.
References
Rule ID integsec-php-unserialize-allowed-classes-true - engine: Opengrep - license: MIT - Copyright (c) IntegSec Inc.
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