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CVE-2025-59430— Mesh Connect JS SDK Vulnerable to Cross Site Scripting via createLink.openLink

Quick assessment

Affected
FrontFin mesh-web-sdk
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Mesh Connect JS SDK是Mesh开源的一个Java库。 Mesh Connect JS SDK 3.3.2之前版本存在跨站脚本漏洞，该漏洞源于createLink.openLink函数未对URL协议进行清理，可能导致执行任意JavaScript代码。

CVSS 8.2 · High EPSS 0.47% · P39
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I. Basic Information for CVE-2025-59430

Vulnerability Information
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Vulnerability Title
Mesh Connect JS SDK Vulnerable to Cross Site Scripting via createLink.openLink
Source: CVE Program / CVE List V5
Vulnerability Description
Mesh Connect JS SDK contains JS libraries for integrating with Mesh Connect. Prior to version 3.3.2, the lack of sanitization of URLs protocols in the createLink.openLink function enables the execution of arbitrary JavaScript code within the context of the parent page. This is technically indistinguishable from a real page at the rendering level and allows access to the parent page DOM, storage, session, and cookies. If the attacker can specify customIframeId, they can hijack the source of existing iframes. This issue has been patched in version 3.3.2.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:H/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
Mesh Connect JS SDK 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Mesh Connect JS SDK是Mesh开源的一个Java库。 Mesh Connect JS SDK 3.3.2之前版本存在跨站脚本漏洞，该漏洞源于createLink.openLink函数未对URL协议进行清理，可能导致执行任意JavaScript代码。
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
FrontFin mesh-web-sdk < 3.3.2 -

II. Public POCs for CVE-2025-59430

# POC Description Source Link Shenlong Link
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Qwen3.6-35B-A3B · 8772 chars
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III. Intelligence Information for CVE-2025-59430

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IV. Related Vulnerabilities

Same weakness: CWE-79

V. Comments for CVE-2025-59430

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