CVE-2026-55592 PoC — Dashy: XSS in workspace url parameter

Source

https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2026/CVE-2026-55592.yaml

Associated Vulnerability

Title: Dashy: XSS in workspace url parameter (CVE-2026-55592)
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.

Description

Dashy versions up to 4.3.6 contain a reflected cross-site scripting vulnerability in the workspace view. The url query parameter is passed directly to an iframe src attribute without scheme validation, allowing an attacker to inject javascript: URIs that execute arbitrary JavaScript in the context of the Dashy origin.

File Snapshot

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