Unblu Spark up to 8.36.1/8.36.x siteEmbeddedSetup cross site scripting

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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4.1$0-$5k3.35

Summaryinfo

A vulnerability classified as problematic was found in Unblu Spark up to 8.36.1/8.36.x. The impacted element is an unknown function of the component siteEmbeddedSetup. Executing a manipulation can lead to cross site scripting. This vulnerability is tracked as CVE-2026-8152. The attack can be launched remotely. No exploit exists.

Detailsinfo

A vulnerability classified as problematic was found in Unblu Spark up to 8.36.1/8.36.x. This vulnerability affects an unknown function of the component siteEmbeddedSetup. The manipulation with an unknown input leads to a cross site scripting vulnerability. The CWE definition for the vulnerability is CWE-79. The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. As an impact it is known to affect integrity. CVE summarizes:

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.

The advisory is shared for download at docs.unblu.com. This vulnerability was named CVE-2026-8152 since 05/08/2026. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. Successful exploitation requires user interaction by the victim. There are neither technical details nor an exploit publicly available. The MITRE ATT&CK project declares the attack technique as T1059.007.

Upgrading to version 8.36.1-hotfix.0 or 8.37.0 eliminates this vulnerability.

VulDB is the best source for vulnerability data and more expert information about this specific topic.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.3
VulDB Meta Temp Score: 4.1

VulDB Base Score: 4.3
VulDB Temp Score: 4.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Cross site scripting
CWE: CWE-79 / CWE-94 / CWE-74
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: no mitigation known
Status: 🔍

0-Day Time: 🔒

Upgrade: Spark 8.36.1-hotfix.0/8.37.0

Timelineinfo

05/08/2026 CVE reserved
07/22/2026 +75 days Advisory disclosed
07/22/2026 +0 days VulDB entry created
07/22/2026 +0 days VulDB entry last update

Sourcesinfo

Advisory: docs.unblu.com
Status: Confirmed

CVE: CVE-2026-8152 (🔒)
GCVE (CVE): GCVE-0-2026-8152
GCVE (VulDB): GCVE-100-382312

Entryinfo

Created: 07/22/2026 15:03
Changes: 07/22/2026 15:03 (53)
Complete: 🔍
Cache ID: 216::103

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