漏洞信息
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Vulnerability Title
flatted: Prototype Pollution via parse()
Vulnerability Description
flatted is a circular JSON parser. Prior to version 3.4.2, the parse() function in flatted can use attacker-controlled string values from the parsed JSON as direct array index keys, without validating that they are numeric. Since the internal input buffer is a JavaScript Array, accessing it with the key "__proto__" returns Array.prototype via the inherited getter. This object is then treated as a legitimate parsed value and assigned as a property of the output object, effectively leaking a live reference to Array.prototype to the consumer. Any code that subsequently writes to that property will pollute the global prototype. This issue has been patched in version 3.4.2.
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P
Vulnerability Type
CWE-1321
Vulnerability Title
flatted 安全漏洞
Vulnerability Description
flatted是Andrea Giammarchi个人开发者的一个轻量快速的循环JSON解析器。 flatted 3.4.2之前版本存在安全漏洞,该漏洞源于parse函数未验证攻击者控制的字符串值是否为数字,可能导致原型污染。
CVSS Information
N/A
Vulnerability Type
N/A