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clevertap-web-sdk vulnerabilities

Vulnerabilities published for clevertap-web-sdk in the last 30 days: 0. Listed in the KEV catalogue: 0.

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Vulnerabilities: 2

  1. CVE-2026-26862

    High · CVSS 8.3EPSS 0.42%Fix available

    CVE-2026-26862

    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

    • Update to 1.15.3
    Published Updated
  2. CVE-2026-26861

    High · CVSS 8.3EPSS 0.21%Fix available

    CVE-2026-26861

    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

    • Update to 1.15.3
    Published Updated

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