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TI-2026-40129 Aliases CVE-2026-55592

Dashy: XSS in workspace url parameter

Priority MEDIUM 52CWE-79Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
Required
Attack complexity
Low
Impact type
Cross-site scripting
Confidentiality · integrity · availability
Low · Low · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-79.

Summary

Dashy is a self-hostable personal dashboard. Prior to 4.3.7, Dashy's workspace view trusts the url query parameter and assigns it directly to an iframe source without scheme validation. If a logged-in user opens a crafted workspace link containing a javascript: URL, JavaScript runs on the Dashy origin and can read same-origin browser data, interact with the Dashy DOM, and send requests as the victim. This issue is fixed in version 4.3.7.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00348 28th percentileScored 2026-11-07
Fix Fixed dashy (lissy93): 4.3.7

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
lissy93dashybefore 4.3.74.3.7Patch availableCNA
  • dashy Vendorlissy93 Affected before 4.3.7 Fixed in 4.3.7 Patch available CNA

Remediation

  • Fix · CNA dashy (lissy93) Fixed in 4.3.7

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-55592

References

Other 3

  • TI-2026-34185 Dash: Users can write to config despire permissions (OIDC tested) CVSS 3.1HIGH 8.2
  • TI-2025-23815 Web-Check allows command Injection via Unvalidated URL in Screenshot API CVSS 4.0CRITICAL 9.3
  • TI-2026-39307 Dashy: Improper Neutralization of Script-Related HTML Tags in a Web Page (Basic XSS) CVSS 4.0MEDIUM 5.9

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences