CVE-2026-8152Disclosure

LOWCVSS 9.3 · CRITICAL

Signal is active with 2 mentions in latest observed window

Immediate actions

  • Patch affected systems immediately

Recommended action window: Monitor and triage in normal cycle

NVD 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.

0.5/ 10 priority

Sources & remediation

Weakness type (CWE)
CWE-79CWE-601

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

Momentum

NONE

Threat summary

  • Patch or workaround signal is available
  • 2 mentions across 1 observed day

What's happening

  • Patch or workaround mentioned in 1 signal
  • Technical details provided in 1 signal
  • Disclosure: 2 classified signals
  • 2 total mentions across 1 day

Deep dive

Activity timeline2 mentions / 1d
01122Mentions · 2026-07-22: 2Patch / Workaround · 2026-07-22: 1Technical Details · 2026-07-22: 107-22
Signal classification1 categories
Disclosure
2100.0%
Referenced assets1 URL
By indicator
Full discourse2 posts
  • MalwareObserver@MalwareObserver
    Disclosure

    🐛 VULNERABILITIES CVE Notify: 🚨 [CVE-2026-8152](https://docs.unblu.com/latest/security-bulletins/#UBL-2026-001) Unblu Spark conta... https://docs.unblu.com/latest/security-bulletins/#UBL-2026-001 #ZeroDay #PatchManagement #Vulnerability

    Post summary

    The tweet announces CVE‑2026‑8152 and directs readers to a security bulletin, indicating a disclosure of a newly identified vulnerability.

    0000039
    12 followersView on X
  • Upwind Security MDR@UpwindMDR
    Disclosure

    🚨Critical - Unblu Spark Open Redirect to DOM-Based XSS (CVE-2026-8152) Unblu Spark contains an open redirect that can be escalated to DOM-based XSS. When deployed with com.unblu.identifier.siteEmbeddedSetup=true, Spark runs in the same origin as the host application, so injected JavaScript executes with full access to the host app's cookies, DOM, and same-origin APIs. An attacker can therefore reach all resources of the host application, not just Unblu's - session theft and actions as the victim. Because Unblu Spark is widely used by banks and insurers, that blast radius is significant. Delivery requires the victim to follow a crafted link. CVSS 9.3. 👉Upgrade Unblu Spark to 8.36.1-hotfix.0 or 8.37.0.

    Post summary

    CVE-2026-8152 is a critical open‑redirect leading to DOM‑based XSS in Unblu Spark, affecting bank and insurance web apps; vendors have issued hotfixes to mitigate the CVSS 9.3 vulnerability.

    0000078
    254 followersView on X

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