CWE-228 (语法无效结构处理不恰当) — Vulnerability Class 13

CWE-228 represents a critical input validation weakness where software fails to properly manage data that violates the syntactic rules of its expected format. Attackers typically exploit this vulnerability by crafting malformed inputs that bypass standard parsing logic, potentially leading to memory corruption, unexpected control flow, or application crashes. Because the system assumes well-formed structures, it may execute unsafe operations or expose internal states when encountering these syntactically invalid payloads. To mitigate this risk, developers must implement rigorous input sanitization and validation routines that strictly enforce schema definitions before processing. Utilizing robust parsing libraries that reject non-compliant data by default, rather than attempting to recover from errors, ensures that only syntactically correct structures are handled. This defensive approach prevents attackers from leveraging structural anomalies to trigger unintended behaviors or compromise system integrity.