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CVE-2021-23814

27
FAUCET Score

CVE-2021-23814 is a critical vulnerability affecting unisharp/laravel-filemanager versions prior to 2.6.2, stemming from insufficient file type validation in the upload() function. This allows an authenticated attacker to upload malicious files, such as webshells, leading to remote code execution with high impact on confidentiality, integrity, and availability. The vulnerability has a CVSS score of 8.8 (HIGH) and is easily exploitable over the network with low attack complexity. While no public exploit code or active exploitation has been observed, and community discussion is minimal, the potential for severe impact necessitates prompt patching.

Impacted Technologies

VendorProductVersion(s)CPE
>= 0.0.0CPE matchmatch criteria
cpe:2.3:a:unisharp:laravel-filemanager:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 3.1

6.7MEDIUM

CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:L

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
LOW
Exploitability Score
1.2
Impact Score
5.5
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.77%
Probability of exploitation in next 30 days
EPSS Percentile
75.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0177 is in the 74th percentile among its peer group of 17,829 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.3 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

composerpatch availablevia ghsa
Product: unisharp/laravel-filemanagerFixed in: 2.6.2

Vendor Advisories (1)

composerGHSA-f8x6-m9f5-ffp8medium

Unrestricted Upload of File with Dangerous Type in unisharp/laravel-filemanager

Jan 6, 2022

References

github.com / UniSharp/laravel-filemanager/issues/1113
snyk.io / vuln/SNYK-PHP-UNISHARPLARAVELFILEMANAGER-1567199
Third Party Advisory
github.com / UniSharp/laravel-filemanager/blob/master/src/Controllers/UploadController.php%23L26
Broken LinkThird Party Advisory
github.com / UniSharp/laravel-filemanager/issues/1113
github.com / UniSharp/laravel-filemanager/releases/tag/v2.5.1
github.com / UniSharp/laravel-filemanager/releases/tag/v2.6.2
security.snyk.io / vuln/SNYK-PHP-UNISHARPLARAVELFILEMANAGER-1567199