CVE-2026-26861
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src/util/campaignRender/nativeDisplay.js中的handleCustomHtmlPreviewPostMessageEvent函数使用includes方法进行来源验证不足，可能导致跨站脚本攻击。
Possible ATT&CK Techniques 2 AI
T1059 · Command and Scripting Interpreter T1189 · Drive-by Compromise
Get alerts for future matching vulnerabilities
Log in to subscribe
I. Basic Information for CVE-2026-26861
Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗
Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.
Vulnerability Title
N/A
Source: CVE Program / CVE List V5
Vulnerability Description
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
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src/util/campaignRender/nativeDisplay.js中的handleCustomHtmlPreviewPostMessageEvent函数使用includes方法进行来源验证不足，可能导致跨站脚本攻击。
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-2026-26861
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
Premium
No public POC found.
Login to generate AI POCIII. Intelligence Information for CVE-2026-26861
请登录查看更多情报信息。
Vendor Advisories for CVE-2026-26861 (1)
Other References for CVE-2026-26861 (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-2026-26862 | CleverTap Web SDK 安全漏洞 |
IV. Related Vulnerabilities
V. Comments for CVE-2026-26861
No comments yet