CVE-2021-23814
13Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 6.7epss 1.8%
exploitation probability
1.8%top 24% of all CVEs
observed exploitation
nono source reports it
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).
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:L/E:P
Affected products
n/a · unisharp/laravel-filemanagerReferences
https://github.com/UniSharp/laravel-filemanager/blob/master/src/Controllers/UploadController.php%23L26https://github.com/UniSharp/laravel-filemanager/issues/1113https://github.com/UniSharp/laravel-filemanager/issues/1113#issuecomment-1812092975https://github.com/UniSharp/laravel-filemanager/releases/tag/v2.5.1https://github.com/UniSharp/laravel-filemanager/releases/tag/v2.6.2https://security.snyk.io/vuln/SNYK-PHP-UNISHARPLARAVELFILEMANAGER-1567199https://snyk.io/vuln/SNYK-PHP-UNISHARPLARAVELFILEMANAGER-1567199