CVE-2016-20023
BaseFortify
Publication date: 2025-12-05
Last updated on: 2025-12-17
Assigner: MITRE
Description
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| cksource | ckfinder | to 2.5.0.1 (inc) |
| cksource | ckfinder | 2.6.3 |
| cksource | ckfinder | 2.5.0.1 |
Helpful Resources
Exploitability
| CWE ID | Description |
|---|---|
| CWE-23 | The product uses external input to construct a pathname that should be within a restricted directory, but it does not properly neutralize sequences such as ".." that can resolve to a location that is outside of that directory. |
| CWE-22 | The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. |
Attack-Flow Graph
AI Powered Q&A
Can you explain this vulnerability to me?
This vulnerability in CKSource CKFinder before version 2.5.0.1 for ASP.NET allows authenticated users to download any file from the server if they know the correct path to that file.
How can this vulnerability impact me? :
The vulnerability can lead to unauthorized disclosure of sensitive files on the server, potentially exposing confidential information to authenticated users who should not have access to those files.
What immediate steps should I take to mitigate this vulnerability?
To mitigate this vulnerability, you should update CKFinder for ASP.NET to version 2.6.3 or later, as this version includes fixes for improper file upload handling and enhanced security measures. Additionally, ensure that file upload validation is properly configured to reject files without extensions and implement protections against content sniffing attacks in web browsers. [2]