CVE-2026-26861
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I. Basic Information for CVE-2026-26861
Vulnerability Information
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Vulnerability Title
N/A
Source: NVD (National Vulnerability Database)
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: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
N/A
Source: NVD (National Vulnerability Database)
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 |
|---|
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No public POC found.
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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
Same vendor: n/a
- CVE-2026-8276
bettercap MySQL Server mysql_server.go integer coercion - CVE-2026-8275
bettercap zerogod IPP Service zerogod_ipp_primitives.go ippR - CVE-2026-8270
Open5GS SMF ogs_nas_parse_qos_rules denial of service - CVE-2026-8269
Open5GS SMF smf_nsmf_handle_create_sm_context denial of serv - CVE-2026-8268
Open5GS SMF OpenAPI_list_create denial of service
V. Comments for CVE-2026-26861
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