Vulnerability · Published Oct 9, 2026 · Assigned by VulnCheck

CVE-2026-108101HortusFox through 6.3 Unrestricted File Upload via Plant Attachments

High 7.5

In plain English

A high-severity unrestricted file upload in hortusfox-web from danielbrendel. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 43% of all known vulnerabilities).

Severity (CVSS 3.1)7.5High

Exploit odds (30 days)0.5%top 57.0% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

HortusFox (hortusfox-web) through 6.3 contains an unrestricted file upload vulnerability in PlantAttachmentModel that allows authenticated users to store files with client-supplied extensions under public/attachments/. Attackers can upload HTML or SVG files via /plants/attachments/add for stored cross-site scripting, or PHP files where .htaccess is unenforced to execute code.

Affected products (as reported)

Vendor	Product	Versions
danielbrendel	hortusfox-web	0 – through 6.3

Weakness: CWE-434 · Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H

References

https://github.com/danielbrendel/hortusfox-web product
GitHub Security Advisory (GHSA-8phf-v3xj-8jjg) vendor-advisory
https://hackmd.io/@leediay/stored-xss-hortusfox-via-plant-attachment technical-description
https://github.com/danielbrendel/hortusfox-web/blob/v6.3/app/models/PlantAttachmentModel.php#L28-L31 technical-description
https://github.com/danielbrendel/hortusfox-web/blob/v6.3/app/resources/js/app.js#L466 technical-description
VulnCheck Advisory: HortusFox through 6.3 Unrestricted File Upload via Plant Attachments third-party-advisory