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.
References (4)
Core 4
Core References
Vendor Advisory x_refsource_confirm
https://github.com/FrontFin/mesh-web-sdk/security/advisories/GHSA-vh3f-qppr-j97f
Issue Tracking x_refsource_misc
https://github.com/FrontFin/mesh-web-sdk/pull/124
Patch x_refsource_misc
https://github.com/FrontFin/mesh-web-sdk/commit/7f22148516d58e21a8b7670dde927d614c0d15c2
Various Sources x_refsource_misc
https://github.com/FrontFin/mesh-web-sdk/blob/cf013b85ab95d64c63cbe46d6cb14695474924e7/packages/link/src/Link.ts#L441
Scores
CVSS v3
8.2
EPSS
0.0005
EPSS Percentile
15.6%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:H/A:N
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
partial
Details
CWE
CWE-79
Status
published
Products (2)
FrontFin/mesh-web-sdk
< 3.3.2
meshconnect/web-link-sdk
0 - 3.3.2npm
Published
Sep 22, 2025
Tracked Since
Feb 18, 2026