Detections
Analytics

SCA: security update for clevertap-web-sdk (GHSA-j5mf-6rh3-rhgg)

high Tenable Self-Hosted Container Security Plugin ID 438140

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - 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 (CVE-2026-26861)

See Also

https://github.com/advisories/GHSA-j5mf-6rh3-rhgg

Plugin Details

Severity: High

ID: 438140

Version: Revision 1.5

Type: Local

Family: SCA Checks

Published: 3/4/2026

Updated: 7/2/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Medium

Score: 4.5

Percentile: 57.44

Vendor

Vendor Severity: High

CVSS v2

Risk Factor: High

Base Score: 9.7

Temporal Score: 7.6

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:P

CVSS Score Source: CVE-2026-26861

CVSS v3

Risk Factor: High

Base Score: 8.3

Temporal Score: 7.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:L

Temporal Vector: CVSS:3.0/E:P/RL:O/RC:C

Vulnerability Information

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2/27/2026

Vulnerability Publication Date: 2/27/2026

Reference Information

CVE: CVE-2026-26861