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CVE-2026-26861
Published: Feb 27, 2026
Modified: Feb 27, 2026
PUBLISHED
Description
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
| Vendor | Product | Versions |
|---|---|---|
n/a | n/a | affected n/a |
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