Clevertap Clevertap Web Sdk vulnerabilities
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Published CVEs affecting Clevertap Clevertap Web Sdk: 2 record(s), with affected versions and fixes.cpe:2.3:a:clevertap:clevertap_web_sdk
CVE-2026-26862
High · 8.3
CWE-79 Feb 27, 2026
Cross-site Scripting (XSS) in Clevertap Clevertap Web Sdk
CleverTap 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
CVE-2026-26861
High · 8.3
CWE-346 Feb 27, 2026
CleverTap Web SDK version 1.15.2 and earlier is vulnerable to Cross-Site Scripting (XSS)…
CleverTap Web SDK version 1.15.2 and earlier is vulnerable to Cross-Site Scripting (XSS) via window.postMessage. The handleCustomHtmlPreviewPostMessageEvent function in src/util/campaignRender/nativeDisplay.js performs insufficient origin validation using the includes() method, which can be bypassed by an attacker using a subdomain