What’s Vulnerable › Vulnerabilities

CVE-2021-23814

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.8% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2021-12-17 · updated 2026-06-17
• Weakness: CWE-94

Description

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).

Affected products

• unisharp/laravel-filemanager: from 0.0.0

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

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