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Vulnerability record · CVE-2026-26272 · published 3 March 2026

CVE-2026-26272: Sysadminsmedia homebox cross-site scripting vulnerability

Sysadminsmedia · Homebox

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.

5.4 CVSS 3.1 Medium EPSS 0.24% · top 86.4% CWE-79 · Cross-site scripting
5.4CVSS 3.1 base score
0.24%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

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.

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/sysadminsmedia/homebox/commit/51bd04e5f4656b306a296745ddd854d45aa3b892 Patch
https://github.com/sysadminsmedia/homebox/security/advisories/GHSA-55fv-9q6q-vpcr Vendor Advisory

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Source: NIST National Vulnerability Database (record CVE-2026-26272), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.