CVE-2026-8152— Unblu Spark Open Redirect leading to DOM-Based XSS
Possible ATT&CK Techniques 2AI
T1059 · Command and Scripting Interpreter T1189 · Drive-by CompromiseAffected Version Matrix 3
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Unblu inc. | Unblu Spark | ≤ 8.36.1 | affected |
8.36.1-hotfix.0 | unaffected | ||
8.37.0 | unaffected |
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I. Basic Information for CVE-2026-8152
Vulnerability Information
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Vulnerability Title
Unblu Spark Open Redirect leading to DOM-Based XSS
Source: CVE Program / CVE List V5
Vulnerability Description
Unblu Spark contains an open redirect vulnerability that can be escalated to a DOM-based cross-site scripting (XSS) attack. When Unblu Spark is deployed with com.unblu.identifier.siteEmbeddedSetup=true, it runs in the same origin as the host application. Any JavaScript injected through this vulnerability therefore executes with full access to the host application's cookies, DOM, and same-origin APIs — an attacker can reach all resources of the host application, not just Unblu's. This expanded blast radius is the reason on-premises deployments using this configuration are rated CRITICAL.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:L/VA:N/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
指向未可信站点的URL重定向(开放重定向)
Source: CVE Program / CVE List V5
Vulnerability Title
Unblu Spark 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Unblu Spark是瑞士Unblu公司的一种以对话为核心的数字客户体验平台中的一个关键组件。 Unblu Spark 8.36.1及之前版本存在安全漏洞，该漏洞源于开放重定向，可升级为基于DOM的跨站脚本攻击，可能导致注入的JavaScript代码完全访问主应用程序的Cookie、DOM和同源API。
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 |
|---|---|---|---|---|
| Unblu inc. | Unblu Spark | 0 ~ 8.36.1 | - |
II. Public POCs for CVE-2026-8152
| # | POC Description | Source Link | Shenlong Link |
|---|
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Vendor Advisories for CVE-2026-8152 (1)
- 🔗 Unblu security bulletinsvendor-advisory
IV. Related Vulnerabilities
Same weakness: CWE-601
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trinodb trino OAuth2/OIDC ExternalUriInfo.java redirect - CVE-2026-63768
cal.diy 6.2.0 Conferencing OAuth Callback Open Redirect via - CVE-2026-61901
Joomla Extension - hikashop.com - Open redirect in Hikashop
V. Comments for CVE-2026-8152
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