HomeBox is a home inventory and organization system. Prior to 0.27.0, the maybeUrl() utility accepts markdown-style links in entity custom-field values without restricting the URL scheme, so an authenticated user can store a javascript: URI that is rendered as a clickable anchor on an item page. When another authenticated user clicks the link, attacker-controlled JavaScript executes in the victim's HomeBox origin, enabling session theft, account takeover, or data exfiltration. This issue is fixed in version 0.27.0.
History

Thu, 05 Nov 2026 18:15:00 +0000

Type Values Removed Values Added
First Time appeared Sysadminsmedia
Sysadminsmedia homebox
Vendors & Products Sysadminsmedia
Sysadminsmedia homebox

Thu, 05 Nov 2026 16:30:00 +0000

Type Values Removed Values Added
Description HomeBox is a home inventory and organization system. Prior to 0.27.0, the maybeUrl() utility accepts markdown-style links in entity custom-field values without restricting the URL scheme, so an authenticated user can store a javascript: URI that is rendered as a clickable anchor on an item page. When another authenticated user clicks the link, attacker-controlled JavaScript executes in the victim's HomeBox origin, enabling session theft, account takeover, or data exfiltration. This issue is fixed in version 0.27.0.
Title HomeBox: Stored XSS via `javascript:` URI in Custom Entity Fields
Weaknesses CWE-79
References
Metrics cvssV3_1

{'score': 5.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published: 2026-11-05T16:02:37.520Z

Updated: 2026-11-05T16:02:37.520Z

Reserved: 2026-08-17T23:49:03.450Z

Link: CVE-2026-75599

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-11-05T17:18:20.340

Modified: 2026-11-05T17:18:20.340

Link: CVE-2026-75599

cve-icon Redhat

No data.