MEDIUM 6.1 NVD

CVE-2025-51684

CleverTap Web SDK v1.15.1 is vulnerable to Cross Site Scripting (XSS). The application does not sanitize untrusted data received via window.postMessage before i

CleverTap Web SDK v1.15.1 is vulnerable to Cross Site Scripting (XSS). The application does not sanitize untrusted data received via window.postMessage before injecting it into the page DOM. An attacker can craft a malicious message that, when processed by renderCustomHtml, results in execution of arbitrary JavaScript in the context of the hosting site.

References

https://github.com/CleverTap/clevertap-web-sdk/issues/416
https://github.com/CleverTap/clevertap-web-sdk/issues/416

Published: 2026-07-30 · Source: NVD · Feed updated: 2026-08-04

This medium severity vulnerability with a CVSS score of 6.1 was published on 2026-07-30 via NVD.

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