Remote code execution in HortusFox via theme import
Key facts
- Attack vector
- Network
- Privileges required
- High
- User interaction
- None
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-434.
Summary
HortusFox before 6.2 contains an unrestricted file upload flaw (CWE-434) in the theme import of ThemeModule::startImport(), which extracts uploaded ZIP archives into the public web root without validating file names, extensions or content. An authenticated administrator can upload a crafted theme archive that runs arbitrary OS commands as the web-server user.
Written with Claude Haiku 5.5 from the sources below · 2026-10-29
Description from the CNA
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| danielbrendel | hortusfox-web | before 6.2 | 6.2 | Patch available | CNA |
- hortusfox-web Vendordanielbrendel Affected before 6.2 Fixed in 6.2 Patch available CNA
Remediation
Upgrade HortusFox (danielbrendel hortusfox-web) to version 6.2.
Written with Claude Haiku 5.5 from the sources below · 2026-10-29
- Fix · CNA hortusfox-web (danielbrendel) Fixed in 6.2
Timeline
- 2026-10-06 Threatist record created from CVE-2026-104069
- 2026-10-06 Alias added: GHSA-6h79-56ph-ww3m
- 2026-10-06 CISA SSVC decision points changed
- 2026-10-06 Priority changed: MEDIUM → LOW
- 2026-10-07 Priority changed: LOW → MEDIUM
References
Patch 1
More danielbrendel vulnerabilities
- TI-2026-62636 HortusFox-Web < 6.1 Remote Code Execution via Import/Export CVSS 4.0HIGH 8.6
- TI-2026-70059 Unrestricted file upload in HortusFox lets users store scripts CVSS 4.0HIGH 7.7
- TI-2026-70058 SQL injection in HortusFox API lets token holders read database tables CVSS 4.0HIGH 7.1
- TI-2026-50818 Daniel Brendel HortusFox - Cross-Site Scripting CVSS 3.1MEDIUM 5.4
Sources
- CVE-2026-104069 · CVE Program
- CVE-2026-104069 · NVD
- FIRST EPSS
- GHSA-6h79-56ph-ww3m · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences