ContiNew Admin fails to apply file-upload permission checks or file-type allowlist validation to multipart upload endpoints, allowing authenticated users to store files with arbitrary extensions. Attackers can initialize chunked uploads, send file parts, and complete uploads to leave arbitrary files in the storage backend accessible via web server URLs.
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
None
No data leak
Integrity
High
Complete data modification
Availability
None
No disruption
CVSS Vector v4.0
Weakness Type (CWE)
Vulnerable Products 1
| Configuration | From (including) | Up to (excluding) |
|---|---|---|
|
Continew Continew_Admin
cpe:2.3:a:continew:continew_admin:*:*:*:*:*:*:*:*
|
— |
<= 4.1.0
|
References 4
https://github.com/continew-org/continew-admin
disclosure@vulncheck.com
https://github.com/continew-org/continew-admin/blob/v4.1.0/continew-system/src/…
disclosure@vulncheck.com
https://github.com/continew-org/continew-admin/issues/221
disclosure@vulncheck.com
https://www.vulncheck.com/advisories/continew-admin-through-4.1.0-missing-autho…
disclosure@vulncheck.com