CVE-2026-55592: CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in lissy93 dashy
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.
AI Analysis
Technical Summary
CVE-2026-55592 is a cross-site scripting vulnerability (CWE-79) in the Dashy personal dashboard application by lissy93. In versions before 4.3.7, the workspace view trusts the URL query parameter and assigns it directly to an iframe's src attribute without validating the URL scheme. This flaw enables an attacker who can trick a logged-in user into opening a specially crafted workspace link containing a javascript: URL to execute arbitrary JavaScript in the context of the Dashy origin. This can lead to reading same-origin browser data, manipulating the DOM, and sending requests on behalf of the victim. The vulnerability is resolved in version 4.3.7.
Potential Impact
An attacker can execute arbitrary JavaScript in the context of the Dashy application for a logged-in user by exploiting the improper validation of iframe sources. This can lead to information disclosure of same-origin data, DOM manipulation, and unauthorized requests sent as the victim user. The CVSS score is 3.9 (low severity), reflecting limited impact due to required user interaction and local access vector.
Mitigation Recommendations
Upgrade Dashy to version 4.3.7 or later, where this vulnerability is fixed by proper validation of the iframe source URL scheme. No other mitigation is indicated by the vendor advisory. Patch status is confirmed fixed in 4.3.7.
CVE-2026-55592: CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') in lissy93 dashy
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.
CVSS v3.1
Score 3.9low
Affected software
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Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-55592 is a cross-site scripting vulnerability (CWE-79) in the Dashy personal dashboard application by lissy93. In versions before 4.3.7, the workspace view trusts the URL query parameter and assigns it directly to an iframe's src attribute without validating the URL scheme. This flaw enables an attacker who can trick a logged-in user into opening a specially crafted workspace link containing a javascript: URL to execute arbitrary JavaScript in the context of the Dashy origin. This can lead to reading same-origin browser data, manipulating the DOM, and sending requests on behalf of the victim. The vulnerability is resolved in version 4.3.7.
Potential Impact
An attacker can execute arbitrary JavaScript in the context of the Dashy application for a logged-in user by exploiting the improper validation of iframe sources. This can lead to information disclosure of same-origin data, DOM manipulation, and unauthorized requests sent as the victim user. The CVSS score is 3.9 (low severity), reflecting limited impact due to required user interaction and local access vector.
Mitigation Recommendations
Upgrade Dashy to version 4.3.7 or later, where this vulnerability is fixed by proper validation of the iframe source URL scheme. No other mitigation is indicated by the vendor advisory. Patch status is confirmed fixed in 4.3.7.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-06-16T23:18:03.170Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a4d6893c9d9e3dbe3d5457f
Added to database: 07/07/2026, 20:58:59 UTC
Last enriched: 07/15/2026, 12:12:05 UTC
Last updated: 08/19/2026, 22:52:13 UTC
Views: 102
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