Vulnerability-Lookup

GHSA-6F3H-GQRM-69GC

Vulnerability from github – Published: 2026-07-22 15:31 – Updated: 2026-07-22 15:31

Details

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.

Severity

9.3 (Critical)


                  
                    CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N

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{
  "affected": [],
  "aliases": [
    "CVE-2026-8152"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-79"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-07-22T13:16:38Z",
    "severity": "CRITICAL"
  },
  "details": "Unblu Spark contains an open redirect vulnerability that can be escalated to a DOM-based cross-site scripting (XSS) attack.\n\n\nWhen 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\u0027s cookies, DOM, and same-origin APIs \u2014 an attacker can reach all resources of the host application, not just Unblu\u0027s. This expanded blast radius is the reason on-premises deployments using this configuration are rated CRITICAL.",
  "id": "GHSA-6f3h-gqrm-69gc",
  "modified": "2026-07-22T15:31:21Z",
  "published": "2026-07-22T15:31:21Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-8152"
    },
    {
      "type": "WEB",
      "url": "https://docs.unblu.com/latest/security-bulletins/#UBL-2026-001"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

CVE-2026-8152 (GCVE-0-2026-8152)

Vulnerability from cvelistv5 – Published: 2026-07-22 12:21 – Updated: 2026-07-22 18:55

Title

Unblu Spark Open Redirect leading to DOM-Based XSS

Summary

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.

Severity

9.3 (Critical)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N

7 (High)


                        
                          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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-601 - URL Redirection to Untrusted Site ('Open Redirect')
CWE-79 - Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

Assigner

NCSC.ch

References

1 reference

URL	Tags
https://docs.unblu.com/latest/security-bulletins/…	vendor-advisory

Impacted products

1 product

Vendor	Product	Version
Unblu inc.	Unblu Spark	Affected: 0 , ≤ 8.36.1 (semver) Unaffected: 8.36.1-hotfix.0 (semver) Unaffected: 8.37.0 (semver)

Credits

Kenan Karalioglu (chef_shell) via YesWeHack

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JSON

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        "metrics": [
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                "id": "CVE-2026-8152",
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                  },
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                "role": "CISA Coordinator",
                "timestamp": "2026-07-22T18:54:56.321413Z",
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        "dateUpdated": "2026-07-22T12:21:28.977Z",
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      "references": [
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          "name": "Unblu Security Advisories",
          "tags": [
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          "url": "https://docs.unblu.com/latest/security-bulletins/#UBL-2026-001"
        }
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}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.

Action not permitted

GHSA-6F3H-GQRM-69GC

CVE-2026-8152 (GCVE-0-2026-8152)

Tags

Sightings

Nomenclature