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.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
High
Admin privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
High
Complete data leak
Integrity
High
Complete data modification
Availability
High
Complete denial of service
CVSS Vector v4.0
Weakness Type (CWE)
References 3
https://github.com/danielbrendel/hortusfox-web/commit/3b87393d38ce408ec6f0946ff…
disclosure@vulncheck.com
https://github.com/danielbrendel/hortusfox-web/releases/tag/v6.2
disclosure@vulncheck.com
https://www.vulncheck.com/advisories/hortusfox-remote-code-execution-via-theme-…
disclosure@vulncheck.com