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CVE PROGRAM SOURCE RECORD9.3 Critical

CVE-2026-8152

Unblu Spark Open Redirect leading to DOM-Based XSS

Read JSON ↗CVE.org ↗
Status
Published
Published
Updated
Assigning organization
NCSC.ch

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Unblu inc. Unblu Spark

Default version status: affected

  • 0 to ≤ 8.36.1affected
  • 8.36.1-hotfix.0unaffected
  • 8.37.0unaffected

References