CVE-2026-108101
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/.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.39%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 4.0
- 7.7 HIGHCVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
- EPSS
- 0.39% probability · 33th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-434
- Source
- disclosure@vulncheck.com
EPSS moved from 0.4% on 10 October 2026 to 0.4% on 26 October 2026.
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
- https://www.vulncheck.com/advisories/hortusfox-through-6.3-unrestricted-file-upload-via-plant-attachments
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.