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I. Basic Information for CVE-2025-57820
Vulnerability Information

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Vulnerability Title
Svelte devalue vulnerable to prototype pollution
Source: NVD (National Vulnerability Database)
Vulnerability Description
Svelte devalue is a utility library. Prior to version 5.3.2, a string passed to devalue.parse could represent an object with a __proto__ property and devalue.parse does not check that an index is numeric. This could result in assigning prototypes to objects and properties, leading to prototype pollution. This issue has been fixed in version 5.3.2
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
CWE-1321
Source: NVD (National Vulnerability Database)
Vulnerability Title
Svelte 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Svelte是Svelte开源的一种构建 Web 应用程序的新方法。 Svelte 5.3.2之前版本存在安全漏洞,该漏洞源于未正确检查输入对象属性,可能导致原型污染。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
VendorProductAffected VersionsCPESubscribe
sveltejsdevalue < 5.3.2 -
II. Public POCs for CVE-2025-57820
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III. Intelligence Information for CVE-2025-57820
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