CVE-2021-23814: This affects versions of the package unisharp/laravel-filemanager before 2.6.2

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MEDIUM 6.7DOWNGRADE

CVE-2021-23814 is a medium-severity flaw (CVSS 6.7) affecting laravel-filemanager. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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 upl

Why this priority

No elevated risk signals yet

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	6.7 (Medium)
Attack vector	Network (remote)
Attack complexity	High
Privileges needed	Low
User interaction	Required
EPSS exploit chance	1.8% (top 21%)
CISA exploited list	No
Weakness	CWE-94, CWE-434
Published	2021-12-17
Last modified	2026-06-17

Publisher (CNA): Snyk · Vendor: unisharp

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2021-12-17 20:15 UTCPublished CVE record published
2026-06-17 03:38 UTCUpdated Record last modified

unisharp laravel-filemanager DOWNGRADE

Affected: >= 0.0.0

Fixed in: no fixed release known

Safe to downgrade to: a release before 0.0.0

1. Check installed version

apt-cache policy laravel-filemanager || rpm -q laravel-filemanager || laravel-filemanager --version

2. No fixed release: DOWNGRADE to a release before 0.0.0 (Debian / Ubuntu)

apt-cache madison laravel-filemanager sudo apt install laravel-filemanager=<VERSION_BEFORE_0.0.0> sudo apt-mark hold laravel-filemanager

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list laravel-filemanager sudo dnf downgrade laravel-filemanager-<VERSION_BEFORE_0.0.0> sudo dnf versionlock add laravel-filemanager

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2021-23814?

laravel-filemanager: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2021-23814 being exploited?

CVE-2021-23814 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2021-23814 affect?

CVE-2021-23814 affects laravel-filemanager. Severity is medium (CVSS 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: 1. Install a pack

How urgent is CVE-2021-23814?

Priority 43/100. No elevated risk signals yet.

Software pages

Laravel vulnerabilities

References

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