Clevertap: Security Vulnerabilities
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
CVSS Score
8.3
EPSS Score
0.0
Published
2026-02-27
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
CVSS Score
8.3
EPSS Score
0.0
Published
2026-02-27
CleverTap Cordova Plugin version 2.6.2 allows a remote attacker to execute JavaScript code in any application that is opened via a specially constructed deeplink by an attacker.
This is possible because the plugin does not correctly validate the data coming from the deeplinks before using them.
CVSS Score
9.3
EPSS Score
0.001
Published
2023-07-15