CVE-2026-108101

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.

References

• https://github.com/danielbrendel/hortusfox-web
• https://github.com/danielbrendel/hortusfox-web/blob/v6.3/app/models/PlantAttachmentModel.php#L28-L31
• https://github.com/danielbrendel/hortusfox-web/blob/v6.3/app/resources/js/app.js#L466
• https://github.com/danielbrendel/hortusfox-web/security/advisories/GHSA-8phf-v3xj-8jjg
• https://hackmd.io/@leediay/stored-xss-hortusfox-via-plant-attachment