CleverTap Web SDK v1.15.1 is vulnerable to Cross Site Scripting (XSS). The application does not sanitize untrusted data received via window.postMessage before injecting it into the page DOM. An attacker can craft a malicious message that, when processed by renderCustomHtml, results in execution of arbitrary JavaScript in the context of the hosting site.
History

Thu, 30 Jul 2026 22:00:00 +0000

Type Values Removed Values Added
First Time appeared Clevertap
Clevertap web Sdk
Vendors & Products Clevertap
Clevertap web Sdk

Thu, 30 Jul 2026 20:15:00 +0000

Type Values Removed Values Added
Description CleverTap Web SDK v1.15.1 is vulnerable to Cross Site Scripting (XSS). The application does not sanitize untrusted data received via window.postMessage before injecting it into the page DOM. An attacker can craft a malicious message that, when processed by renderCustomHtml, results in execution of arbitrary JavaScript in the context of the hosting site.
References

cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-07-30T19:57:30.163Z

Reserved: 2025-06-16T00:00:00.000Z

Link: CVE-2025-51684

cve-icon Vulnrichment

No data.

cve-icon NVD

No data.

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-07-30T21:45:07Z