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I. Basic Information for CVE-2025-62381
Vulnerability Information

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Vulnerability Title
sveltekit-superforms Prototype Pollution in `parseFormData` function of `formData.js`
Source: NVD (National Vulnerability Database)
Vulnerability Description
sveltekit-superforms makes SvelteKit forms a pleasure to use. sveltekit-superforms v2.27.3 and prior are susceptible to a prototype pollution vulnerability within the parseFormData function of formData.js. An attacker can inject string and array properties into Object.prototype, leading to denial of service, type confusion, and potential remote code execution in downstream applications that rely on polluted objects. This vulnerability is fixed in 2.27.4.
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
SvelteKit 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
SvelteKit是Svelte开源的一套Web 开发框架。 SvelteKit 2.27.3及之前版本存在安全漏洞,该漏洞源于formData.js中parseFormData函数存在原型污染,可能导致拒绝服务、类型混淆和潜在远程代码执行。
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
ciscoheatsveltekit-superforms < 2.27.4 -
II. Public POCs for CVE-2025-62381
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III. Intelligence Information for CVE-2025-62381
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