CVE-2026-8152
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.
How to fix
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Unblu inc. Unblu Spark | v ≤ 8.36.1 | — |
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Attack Surface Management
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