CVE Catalog

CVE-2025-51684

MediumCVSS 6.1
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.26%

17th percentile - higher than 17% of all known CVEs

Summary

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.

Risk Assessment

Risk includes user data theft, session hijacking, or unauthorized actions performed on behalf of the victim.

Recommendation

Update CleverTap Web SDK to the latest patched version and apply proper data sanitization before DOM injection.

Related vulnerabilities

Original NVD description (English source)

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.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS