XSS in Lissy93 Dashy
CVE-2026-55592
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.
Vulnerability class: XSS (Cross-Site Scripting)
EPSS: 0.003 (17.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 3.9 (Low). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N.
Affected products
- Lissy93 Dashy — versions < 4.3.7
Weakness classification (CWE)
References
- security-advisories@github.com (x_refsource_CONFIRM)
- security-advisories@github.com (x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC)
Frequently asked questions
- What is CVE-2026-55592?
- CVE-2026-55592 is a low-severity vulnerability in Lissy93 Dashy, classified under Cross-site Scripting. CVSS score: 3.9/10. Published 2026-07-07.
- How severe is CVE-2026-55592?
- Low severity. CVSS v3 base score is 3.9 out of 10.