CVE-2025-32388— SvelteKit allows XSS via tracked search_params
Quick assessment
Affected
sveltejs kit
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
SvelteKit是Svelte开源的一套Web 开发框架。 SvelteKit 2.20.6之前版本存在跨站脚本漏洞，该漏洞源于未清理的搜索参数名称可能导致跨站脚本攻击。
Possible ATT&CK Techniques 1 AI
T1189 · Drive-by Compromise
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I. Basic Information for CVE-2025-32388
Vulnerability Information
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Vulnerability Title
SvelteKit allows XSS via tracked search_params
Source: CVE Program / CVE List V5
Vulnerability Description
SvelteKit is a framework for rapidly developing robust, performant web applications using Svelte. Prior to 2.20.6 , unsanitized search param names cause XSS vulnerability. You are affected if you iterate over all entries of event.url.searchParams inside a server load function. Attackers can exploit it by crafting a malicious URL and getting a user to click a link with said URL. This vulnerability is fixed in 2.20.6.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: CVE Program / CVE List V5
Vulnerability Title
SvelteKit 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
SvelteKit是Svelte开源的一套Web 开发框架。 SvelteKit 2.20.6之前版本存在跨站脚本漏洞，该漏洞源于未清理的搜索参数名称可能导致跨站脚本攻击。
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
II. Public POCs for CVE-2025-32388
| # | POC Description | Source Link | Shenlong Link |
|---|
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Patches & Fixes for CVE-2025-32388 (1)
-
Merge commit from fork · sveltejs/kit@d3300c6 · GitHub x_refsource_MISC
Vendor Advisories for CVE-2025-32388 (1)
-
XSS via tracked search_params · Advisory · sveltejs/kit · GitHub x_refsource_CONFIRM
Vendor Pages for CVE-2025-32388 (1)
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Release @sveltejs/kit@2.20.6 · sveltejs/kit · GitHub x_refsource_MISC
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SvelteKit 2.49.0 before 2.53.3 Denial of Service via form
Same weakness: CWE-79
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V. Comments for CVE-2025-32388
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