CVE-2026-26862 Detail
Received
This CVE record has recently been published to the CVE List and has been included within the NVD dataset. DescriptionCleverTap Web SDK version 1.15.2 and earlier is vulnerable to DOM-based Cross-Site Scripting (XSS) via window.postMessage in the Visual Builder module. The origin validation in src/modules/visualBuilder/pageBuilder.js (lines 56-60) uses the includes() method to verify the originUrl contains "dashboard.clevertap.com", which can be bypassed by an attacker using a crafted subdomain Metrics
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CVSS 4.0 Severity and Vector Strings:
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