Open Redirect Flaw in Unblu Spark Impacts Application Security
CVE-2026-8152

7HIGH

Key Information:

Vendor

Unblu Inc.

Status
Unblu Spark
Vendor
CVE Published:
22 July 2026

What is CVE-2026-8152?

Unblu Spark is susceptible to an open redirect vulnerability when configured with com.unblu.identifier.siteEmbeddedSetup=true. This configuration allows the application to run in the same origin as the host application, which can lead to a DOM-based cross-site scripting (XSS) attack. An attacker exploiting this vulnerability can inject malicious JavaScript that executes with full access to the host application's cookies, DOM, and same-origin APIs. This makes it possible for attackers to manipulate all resources of the host application, significantly broadening the impact of potential attacks.

Affected Version(s)

Unblu Spark On-premises 0 <= 8.36.1

Unblu Spark On-premises 0 <= 8.36.1

Unblu Spark On-premises 8.36.1-hotfix.0

References

https://docs.unblu.com/latest/security-bulletins/#UBL-202...
vendor-advisory

CVSS V4

Score:
7
Severity:
HIGH
Confidentiality:
High
Integrity:
Low
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
Unknown

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

Kenan Karalioglu (chef_shell) via YesWeHack
.