CVE-2026-26862

Katalog CVE

CVSS 8.3 · High EPSS 0,53%

Kerentanan Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') pada clevertap web sdk. Skor CVSS 3.1 8.3 (High) menurut CISA ADP.

Deskripsi (NVD)

CleverTap Web SDK version 1.15.2 and earlier is vulnerable to DOM-based Cross-Site Scripting (XSS) via window.postMessage in the Visual Builder module. The origin validation in src/modules/visualBuilder/pageBuilder.js (lines 56-60) uses the includes() method to verify the originUrl contains "dashboard.clevertap.com", which can be bypassed by an attacker using a crafted subdomain

Rincian

Terbit di NVD

27 Februari 2026

Terakhir diubah

17 Juni 2026

Status NVD

Analyzed

CVSS 3.1

8.3 (High), sumber CISA ADP
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:L · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CWE-829: Inclusion of Functionality from Untrusted Control Sphere

EPSS (30 hari)

0,53% peluang dieksploitasi; lebih tinggi dari 43,5% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/CleverTap/clevertap-web-sdk/issues/442 exploit · issue tracking · advisory vendor
• https://github.com/CleverTap/clevertap-web-sdk/pull/417 patch
• https://github.com/CleverTap/clevertap-web-sdk/blob/cf1b65d/src/modules/visualBuilder/pageBuilder.js#L56-L60 product