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CVE-2022-40734: UniSharp laravel-filemanager (aka Laravel Filemanager) before 2.6.4 allows download?working_dir=%2F.

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MEDIUM 6.5UPGRADE

CVE-2022-40734 is a medium-severity flaw (CVSS 6.5) affecting laravel filemanager. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

UniSharp laravel-filemanager (aka Laravel Filemanager) before 2.6.4 allows download?working_dir=%2F.. directory traversal to read arbitrary files, as exploited in the wild in June 2022. This is related to league/flysystem before 2.0.0.

Why this priority

  • EPSS top 8%: very likely to be exploited
  • Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score6.5 (Medium)
Attack vectorNetwork (remote)
Attack complexityLow
Privileges neededLow
User interactionNone
EPSS exploit chance5.2% (top 8%)
CISA exploited listNo
WeaknessCWE-22
Published2022-09-14
Last modified2026-06-17
Publisher (CNA): MITRE · Vendor: unisharp

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

Am I affected?

Timeline

unisharp laravel filemanager UPGRADE
Affected: <= 2.5.1
Fixed in: newer than 2.5.1
Safe to downgrade to: no unaffected older release
1. Check installed version
apt-cache policy laravel-filemanager || rpm -q laravel-filemanager || laravel-filemanager --version
2. UPGRADE to newer than 2.5.1 (Debian / Ubuntu)
sudo apt update && sudo apt install --only-upgrade laravel-filemanager
2. UPGRADE (RHEL / Amazon Linux / Fedora)
sudo dnf upgrade laravel-filemanager
Note
Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Public exploits and detection

Public code exists for this CVE. Treat unpatched systems as at risk, and only run PoCs in a lab.

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-2022-40734?

laravel filemanager: upgrade to newer than 2.5.1. Exact commands for each OS are on this page.

Is CVE-2022-40734 being exploited?

CVE-2022-40734 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-2022-40734 affect?

CVE-2022-40734 affects laravel filemanager. Severity is medium (CVSS 6.5). UniSharp laravel-filemanager (aka Laravel Filemanager) before 2.6.4 allows download?working_dir=%2F.. directory traversal to read arbitrary files, as exploited in the wild in June 2022. This is related to league/flysystem before 2.0.0.

How urgent is CVE-2022-40734?

Priority 51/100. EPSS top 8%: very likely to be exploited; Public exploit reference

Software pages

Laravel vulnerabilities

References

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