CVE-2025-51684

Published: Jul 30, 2026Modified: Sep 9, 2026Deferred

6.1

Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Exploitability: 2.8 / Impact: 2.7

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary)

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.

Related CWEs

CWE-79

Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

References (2)

https://github.com/CleverTap/clevertap-web-sdk/issues/416

Source: cve@mitre.org

https://github.com/CleverTap/clevertap-web-sdk/issues/416

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0

Timeline

No history available yet.