Vulnerability Details CVE-2021-23814
This affects versions of the package unisharp/laravel-filemanager before 2.6.2. The upload() function does not sufficiently validate the file type when uploading.
An attacker may be able to reproduce the following steps:
1. Install a package with a web Laravel application.
2. Navigate to the Upload window
3. Upload an image file, then capture the request
4. Edit the request contents with a malicious file (webshell)
5. Enter the path of file uploaded on URL - Remote Code Execution
**Note:** Prevention for bad extensions can be done by using a whitelist in the config file(lfm.php). Corresponding document can be found in [here](https://unisharp.github.io/laravel-filemanager/configfolder-categories).
Exploit prediction scoring system (EPSS) score
EPSS Score 0.021
EPSS Ranking 83.3%
CVSS Severity
CVSS v3 Score 6.7
CVSS v2 Score 6.5
References
- https://github.com/UniSharp/laravel-filemanager/blob/master/src/Controllers/UploadController.php%23L26
- https://github.com/UniSharp/laravel-filemanager/issues/1113
- https://github.com/UniSharp/laravel-filemanager/releases/tag/v2.5.1
- https://github.com/UniSharp/laravel-filemanager/releases/tag/v2.6.2
- https://security.snyk.io/vuln/SNYK-PHP-UNISHARPLARAVELFILEMANAGER-1567199
- https://github.com/UniSharp/laravel-filemanager/blob/master/src/Controllers/UploadController.php%23L26
- https://github.com/UniSharp/laravel-filemanager/issues/1113#issuecomment-1812092975
- https://snyk.io/vuln/SNYK-PHP-UNISHARPLARAVELFILEMANAGER-1567199
Products affected by CVE-2021-23814
-
cpe:2.3:a:unisharp:laravel-filemanager:*