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CVE-2026-25148— Qwik SSR XSS via Unsafe Virtual Node Serialization

Quick assessment

Affected
QwikDev qwik
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.

Qwik是Qwik Dev开源的一款微型Web框架。 Qwik 1.19.0之前版本存在跨站脚本漏洞，该漏洞源于服务器端渲染虚拟属性序列化存在跨站脚本漏洞，可能导致远程攻击者注入任意Web脚本。

AI Predicted 8.0 Difficulty: Easy EPSS 0.35% · P28
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I. Basic Information for CVE-2026-25148

Vulnerability Information
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Vulnerability Title
Qwik SSR XSS via Unsafe Virtual Node Serialization
Source: CVE Program / CVE List V5
Vulnerability Description
Qwik is a performance focused javascript framework. Prior to version 1.19.0, a Cross-Site Scripting vulnerability in Qwik.js' server-side rendering virtual attribute serialization allows a remote attacker to inject arbitrary web scripts into server-rendered pages via virtual attributes. Successful exploitation permits script execution in a victim's browser in the context of the affected origin. This issue has been patched in version 1.19.0.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:L/SI:L/SA: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
Qwik 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Qwik是Qwik Dev开源的一款微型Web框架。 Qwik 1.19.0之前版本存在跨站脚本漏洞，该漏洞源于服务器端渲染虚拟属性序列化存在跨站脚本漏洞，可能导致远程攻击者注入任意Web脚本。
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

Vendor Product Affected Versions CPE Subscribe
QwikDev qwik < 1.19.0 -

II. Public POCs for CVE-2026-25148

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III. Intelligence Information for CVE-2026-25148

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Same Patch Batch · QwikDev · 2026-02-03 · 5 CVEs total

CVE-2026-25150 9.3 CRITICAL Prototype Pollution via FormData Processing in Qwik City
CVE-2026-25151 5.9 MEDIUM Qwik City has a CSRF Protection Bypass via Content-Type Header Validation
CVE-2026-25155 5.9 MEDIUM [qwik-city] CSRF protection middleware does not work properly for content type header with
CVE-2026-25149 Qwik City Open Redirect via fixTrailingSlash

IV. Related Vulnerabilities

Same product: qwik
Same vendor: QwikDev
Same weakness: CWE-79

V. Comments for CVE-2026-25148

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