What is CVE-2026-104069?

CVE-2026-104069 is a high-severity vulnerability in Danielbrendel Hortusfox-Web, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 7.2/10. Published 2026-10-06.

How severe is CVE-2026-104069?

High severity. CVSS v3 base score is 7.2 out of 10.

Arbitrary file upload in Danielbrendel Hortusfox-Web

CVE-2026-104069

HortusFox before 6.2 contains a remote code execution vulnerability in ThemeModule::startImport() where an uploaded ZIP archive is extracted directly into the public web root before any validation of file names, extensions, or content is performed. An authenticated administrator can upload a crafted theme archive containing a PHP file and an .htaccess file to re-enable execution, then request it under the themes directory to execute arbitrary OS commands as the web-server user.

Vulnerability class: Unrestricted File Upload

Published 2026-10-06 · last modified 2026-10-06.

CVSS v3 metric

CVSS v3 base score 7.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Danielbrendel Hortusfox-Web

Weakness classification (CWE)

CWE-434 — Unrestricted Upload of File with Dangerous Type

References

github.com/danielbrendel/hortusfox-web/releases/tag/v6.2 (release-notes)
github.com/danielbrendel/hortusfox-web/commit/3b87393d38ce408ec6f0946ffb3cbf0d0… (patch)
www.vulncheck.com/advisories/hortusfox-remote-code-execution-via-theme-import (third-party-advisory)

Frequently asked questions

What is CVE-2026-104069?: CVE-2026-104069 is a high-severity vulnerability in Danielbrendel Hortusfox-Web, classified under Unrestricted Upload of File with Dangerous Type. CVSS score: 7.2/10. Published 2026-10-06.
How severe is CVE-2026-104069?: High severity. CVSS v3 base score is 7.2 out of 10.