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CVE-2026-26862

Quick assessment

Affected
n/a n/a
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

CleverTap Web SDK是CleverTap开源的一个开发者工具包。 CleverTap Web SDK 1.15.2及之前版本存在安全漏洞，该漏洞源于Visual Builder模块中src/modules/visualBuilder/pageBuilder.js的来源验证使用includes方法检查originUrl是否包含dashboard.clevertap.com，可能导致基于DOM的跨站脚本攻击。

AI Predicted 7.5 Difficulty: Easy EPSS 0.37% · P30
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I. Basic Information for CVE-2026-26862

Vulnerability Information
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Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
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
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
CleverTap Web SDK 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
CleverTap Web SDK是CleverTap开源的一个开发者工具包。 CleverTap Web SDK 1.15.2及之前版本存在安全漏洞，该漏洞源于Visual Builder模块中src/modules/visualBuilder/pageBuilder.js的来源验证使用includes方法检查originUrl是否包含dashboard.clevertap.com，可能导致基于DOM的跨站脚本攻击。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
- n/a n/a -

II. Public POCs for CVE-2026-26862

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III. Intelligence Information for CVE-2026-26862

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Proof of Concept for CVE-2026-26862 (1)

Same Patch Batch · n/a · 2026-02-27 · 8 CVEs total

CVE-2026-3292 6.3 MEDIUM jizhiCMS Batch Model.php findAll sql injection
CVE-2026-3281 5.3 MEDIUM libvips bandrank.c vips_bandrank_build heap-based overflow
CVE-2026-3284 3.3 LOW libvips extract.c vips_extract_area_build integer overflow
CVE-2026-3283 3.3 LOW libvips extract.c vips_extract_band_build out-of-bounds
CVE-2026-3282 3.3 LOW libvips unpremultiply.c vips_unpremultiply_build out-of-bounds
CVE-2025-69437 PublicCMS 安全漏洞
CVE-2026-26861 CleverTap Web SDK 安全漏洞

IV. Related Vulnerabilities

Same product: n/a
Same vendor: n/a

V. Comments for CVE-2026-26862

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