CVE-2026-26272: HomeBox affected by Stored XSS via HTML/SVG Attachment Upload
HomeBox is a home inventory and organization system. Prior to 0.24.0-rc.1, a stored cross-site scripting (XSS) vulnerability exists in the item attachment upload functionality. The application does not properly validate or restrict uploaded file types, allowing an authenticated user to upload malicious HTML or SVG files containing executable JavaScript (also, potentially other formats that render scripts). Uploaded attachments are accessible via direct links. When a user accesses such a file in their browser, the embedded JavaScript executes in the context of the application's origin. This vulnerability is fixed in 0.24.0-rc.1.
Affected Software
Remediation
Event History
Frequently Asked Questions
What is the severity of CVE-2026-26272?
CVE-2026-26272 has a severity level categorized as high due to its potential impact on user data integrity and security.
How do I fix CVE-2026-26272?
To fix CVE-2026-26272, upgrade your HomeBox application to version 0.24.0-rc.1 or later.
What type of vulnerability is CVE-2026-26272?
CVE-2026-26272 is a stored cross-site scripting (XSS) vulnerability.
What systems are affected by CVE-2026-26272?
CVE-2026-26272 affects HomeBox versions prior to 0.24.0-rc.1.
What can attackers do with CVE-2026-26272?
Attackers can exploit CVE-2026-26272 to inject malicious scripts that could be executed in the context of other users' browsers.