CVE-2021-23814
Laravel Filemanager Unvalidated File Type Upload RCE
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).
INFO
Published Date :
Dec. 17, 2021, 8:15 p.m.
Last Modified :
June 17, 2025, 12:15 p.m.
Source :
[email protected]
Remotely Exploitable :
Yes !
Impact Score :
5.9
Exploitability Score :
2.8
Public PoC/Exploit Available at Github
CVE-2021-23814 has a 1 public PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2021-23814.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
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Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2021-23814 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2021-23814 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
CVE Modified by [email protected]
Jun. 17, 2025
Action Type Old Value New Value Changed Description This affects the package unisharp/laravel-filemanager from 0.0.0. The upload() function does not sufficiently validate the file type when uploading. An attacker may be able to reproduce the following steps: - Install a package with a web Laravel application. - Navigate to the Upload window - Upload an image file, then capture the request - Edit the request contents with a malicious file (webshell) - 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 the [here](https://unisharp.github.io/laravel-filemanager/configfolder-categories). 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). Added CWE CWE-94 Added Reference https://github.com/UniSharp/laravel-filemanager/issues/1113 Added Reference https://github.com/UniSharp/laravel-filemanager/releases/tag/v2.5.1 Added Reference https://github.com/UniSharp/laravel-filemanager/releases/tag/v2.6.2 Added Reference https://security.snyk.io/vuln/SNYK-PHP-UNISHARPLARAVELFILEMANAGER-1567199 Removed Reference https://github.com/UniSharp/laravel-filemanager/issues/1113#issuecomment-1812092975 Removed Reference https://snyk.io/vuln/SNYK-PHP-UNISHARPLARAVELFILEMANAGER-1567199 Removed Reference Type https://snyk.io/vuln/SNYK-PHP-UNISHARPLARAVELFILEMANAGER-1567199 Types: Third Party Advisory -
CVE Modified by af854a3a-2127-422b-91ae-364da2661108
Nov. 21, 2024
Action Type Old Value New Value Added Reference https://github.com/UniSharp/laravel-filemanager/blob/master/src/Controllers/UploadController.php%23L26 Added Reference https://github.com/UniSharp/laravel-filemanager/issues/1113#issuecomment-1812092975 Added Reference https://snyk.io/vuln/SNYK-PHP-UNISHARPLARAVELFILEMANAGER-1567199 -
CVE Modified by [email protected]
May. 14, 2024
Action Type Old Value New Value -
CVE Modified by [email protected]
Dec. 07, 2023
Action Type Old Value New Value Added Reference Snyk https://github.com/UniSharp/laravel-filemanager/issues/1113#issuecomment-1812092975 [No types assigned] -
Initial Analysis by [email protected]
Jan. 04, 2022
Action Type Old Value New Value Added CVSS V2 NIST (AV:N/AC:L/Au:S/C:P/I:P/A:P) Added CVSS V3.1 NIST AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Changed Reference Type https://github.com/UniSharp/laravel-filemanager/blob/master/src/Controllers/UploadController.php%23L26 No Types Assigned https://github.com/UniSharp/laravel-filemanager/blob/master/src/Controllers/UploadController.php%23L26 Broken Link, Third Party Advisory Changed Reference Type https://snyk.io/vuln/SNYK-PHP-UNISHARPLARAVELFILEMANAGER-1567199 No Types Assigned https://snyk.io/vuln/SNYK-PHP-UNISHARPLARAVELFILEMANAGER-1567199 Third Party Advisory Added CWE NIST CWE-434 Added CPE Configuration OR *cpe:2.3:a:unisharp:laravel-filemanager:*:*:*:*:*:*:*:* versions from (including) 0.0.0 -
CVE Modified by [email protected]
Dec. 17, 2021
Action Type Old Value New Value Changed Description This affects the package unisharp/laravel-filemanager from 0.0.0. The upload() function does not sufficiently validate the file type when uploading. An attacker may be able to reproduce the following steps: - Install a package with a web Laravel application. - Navigate to the Upload window - Upload an image file, then capture the request - Edit the request contents with a malicious file (webshell) - 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 the [here](https://unisharp.github.io/laravel-filemanager/configfolder-categories). This affects the package unisharp/laravel-filemanager from 0.0.0. The upload() function does not sufficiently validate the file type when uploading. An attacker may be able to reproduce the following steps: - Install a package with a web Laravel application. - Navigate to the Upload window - Upload an image file, then capture the request - Edit the request contents with a malicious file (webshell) - 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 the [here](https://unisharp.github.io/laravel-filemanager/configfolder-categories).
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2021-23814 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2021-23814
weaknesses.
Exploit Prediction
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days.
2.09 }} -0.45%
score
0.83215
percentile