input-validation

Detect input validation vulnerabilities in Solidity by performing static analysis to identify missing zero checks, array bounds mismatches, and untrusted calldata. This process flags insecure function parameter handling and external calls before deployment.

OWASP SC04:2025 smart contract input validation risks include missing zero checks, address validation issues, array bounds errors, parameter constraints, calldata validation, and encoding problems. These flaws occur when contracts assume good faith or lack bounds checking.

Audit smart contract code for missing zero checks and array bounds errors by scanning the codebase to pinpoint insecure function parameter handling. Static analysis identifies exactly where external parameters are not adequately validated.

Yes, you can analyze untrusted calldata and external calls by applying static analysis to the Solidity code. This identifies insecure function parameter handling and provides detection patterns for mitigating these vulnerabilities.

Mitigate web3 security flaws from unvalidated function parameters by applying targeted detection patterns and constraints. Root cause analysis explains why validation fails, enabling strategies to secure external calls and prevent broken invariants.

Smart contract input validation fails during external function calls due to assumptions of good faith and missing bounds checking. Failing to validate untrusted calldata and encoding problems leads to exploits and fund loss.