NivoCart through 2.4.0 contains an arbitrary file upload vulnerability in the File Manager multi() endpoint that fails to validate file extensions for new filenames or when chunks parameter is 2 or higher. Attackers with view-only back-office access can upload PHP files to the web-accessible image/data/ directory and execute them for remote code execution.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
Low
Basic 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)
Vulnerable Products
nivocart:nivocart
References 5
https://github.com/nivocart/nivocart/issues/25
GitHub Issue #25
https://github.com/nivocart/nivocart/blob/6ea6600cda1263ae70c0aab0a70d31091a32c…
multi() upload path at v2.4.0
https://github.com/nivocart/nivocart/blob/6ea6600cda1263ae70c0aab0a70d31091a32c…
duplicated file manager controller at v2.4.0
https://github.com/nivocart/nivocart
NVD
https://www.vulncheck.com/advisories/nivocart-through-2.4.0-arbitrary-file-uplo…
VulnCheck Advisory: NivoCart through 2.4.0 Arbitrary File Upload RCE via filemanager