CVE-2025-59430
Mesh Connect JS SDK Vulnerable to Cross Site Scripting via createLink.openLink
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.
INFO
Published Date :
Sept. 22, 2025, 7:16 p.m.
Last Modified :
Oct. 11, 2026, 9:10 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | HIGH | [email protected] |
Solution
- Update the Mesh Connect JS SDK to version 3.3.2.
- Sanitize URL protocols in createLink.openLink function.
- Validate customIframeId to prevent iframe hijacking.
- Review integration points for potential cross-site scripting.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2025-59430.
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2025-59430 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2025-59430
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2025-59430 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2025-59430 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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CVE Translated by [email protected]
Oct. 11, 2026
Action Type Old Value New Value Changed Translation Title: mesh-web-sdk de FrontFin, Description: Mesh Connect JS SDK contiene bibliotecas JS para la integración con Mesh Connect. Antes de la versión 3.3.2, la falta de saneamiento de los protocolos de URL en la función createLink.openLink permite la ejecución de código JavaScript arbitrario dentro del contexto de la página padre. Esto es técnicamente indistinguible de una página real a nivel de renderizado y permite el acceso al DOM, el almacenamiento, la sesión y las cookies de la página padre. Si el atacante puede especificar customIframeId, pueden secuestrar la fuente de iframes existentes. Este problema ha sido parcheado en la versión 3.3.2. Title: mesh-web-sdk de FrontFin, Description: Mesh Connect JS SDK contiene bibliotecas JS para la integración con Mesh Connect. Antes de la versión 3.3.2, la falta de saneamiento de los protocolos de URL en la función createLink.openLink permite la ejecución de código JavaScript arbitrario dentro del contexto de la página padre. Esto es técnicamente indistinguible de una página real a nivel de renderizado y permite el acceso al DOM, el almacenamiento, la sesión y las cookies de la página padre. Si el atacante puede especificar customIframeId, pueden secuestrar la fuente de iframes existentes. Este problema ha sido parcheado en la versión 3.3.2. -
CVE Translated by [email protected]
Oct. 01, 2026
Action Type Old Value New Value Added Translation Title: mesh-web-sdk de FrontFin, Description: Mesh Connect JS SDK contiene bibliotecas JS para la integración con Mesh Connect. Antes de la versión 3.3.2, la falta de saneamiento de los protocolos de URL en la función createLink.openLink permite la ejecución de código JavaScript arbitrario dentro del contexto de la página padre. Esto es técnicamente indistinguible de una página real a nivel de renderizado y permite el acceso al DOM, el almacenamiento, la sesión y las cookies de la página padre. Si el atacante puede especificar customIframeId, pueden secuestrar la fuente de iframes existentes. Este problema ha sido parcheado en la versión 3.3.2. -
CVE Modified by [email protected]
Jun. 17, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'FrontFin', 'product': 'mesh-web-sdk', 'versions': [{'status': 'affected', 'version': '< 3.3.2'}]}] -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jun. 17, 2026
Action Type Old Value New Value Added SSVC {'id': 'CVE-2025-59430', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'poc'}, {'automatable': 'no'}, {'technicalImpact': 'partial'}], 'version': '2.0.3', 'timestamp': '2025-09-22T19:43:29.134727Z'} -
New CVE Received by [email protected]
Sep. 22, 2025
Action Type Old Value New Value Added 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. Added CVSS V3.1 AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:H/A:N Added CWE CWE-79 Added Reference https://github.com/FrontFin/mesh-web-sdk/blob/cf013b85ab95d64c63cbe46d6cb14695474924e7/packages/link/src/Link.ts#L441 Added Reference https://github.com/FrontFin/mesh-web-sdk/commit/7f22148516d58e21a8b7670dde927d614c0d15c2 Added Reference https://github.com/FrontFin/mesh-web-sdk/pull/124 Added Reference https://github.com/FrontFin/mesh-web-sdk/security/advisories/GHSA-vh3f-qppr-j97f