VULNERABILITY INTELLIGENCE

CVE-2025-51684

CVSS score6.1 MEDIUM

EPSS probability0.30%

CISA KEVNot currently listed

Published2026-07-30

Last modified2026-10-13

Description

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.