CVE-2026-26861 - CleverTap Web SDK Cross-Site Scripting (XSS)

CVE ID : CVE-2026-26861 Published : Feb. 27, 2026, 6:16 p.m. | 14 minutes ago 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 Severity: 0.0 | NA Visit the link for more details, such as CVSS details, affected products, timeline, and more...