CVE-2021-23814

MEDIUMNVD 6.76.7—

6.7

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:

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 here.

CVSS v3: 6.7
EG Score: 6.7(medium)
EPSS: 84.3%
KEV: Not listed

Published

December 17, 2021

Last Modified

June 17, 2025

References (8)

report@snykhttps://github.com/UniSharp/laravel-filemanager/blob/master/src/Controllers/UploadController.php%23L26
report@snykhttps://github.com/UniSharp/laravel-filemanager/issues/1113
report@snykhttps://github.com/UniSharp/laravel-filemanager/releases/tag/v2.5.1
report@snykhttps://github.com/UniSharp/laravel-filemanager/releases/tag/v2.6.2
report@snykhttps://security.snyk.io/vuln/SNYK-PHP-UNISHARPLARAVELFILEMANAGER-1567199
af854a3a-2127-422b-91ae-364da2661108https://github.com/UniSharp/laravel-filemanager/blob/master/src/Controllers/UploadController.php%23L26
af854a3a-2127-422b-91ae-364da2661108https://github.com/UniSharp/laravel-filemanager/issues/1113#issuecomment-1812092975
af854a3a-2127-422b-91ae-364da2661108https://snyk.io/vuln/SNYK-PHP-UNISHARPLARAVELFILEMANAGER-1567199

Affected Packages

(1 across 1 ecosystem)

Packagist(1)

Package	Vulnerable range	Fixed in	Dependents
unisharp/laravel-filemanager	0.1.0 ... v2.6.1 (63 versions)	2.6.2	—

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 7× in last 7d / 7× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-05-27 13:39 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 06:07 UTCEG score recompute
2026-05-24 16:49 UTCepss_batch

Frequently asked(5)

What is CVE-2021-23814?

CVE-2021-23814 is a medium vulnerability published on December 17, 2021. 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…

When was CVE-2021-23814 disclosed?

CVE-2021-23814 was first published in the National Vulnerability Database on December 17, 2021, with the most recent update on June 17, 2025. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2021-23814 actively exploited?

CVE-2021-23814 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 84.3% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2021-23814?

CVE-2021-23814 has a CVSS v3 base score of 6.7 (NVD).

How do I remediate CVE-2021-23814?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2021-23814, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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