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CVE-2026-35585

7.2 · HIGH

File Browser is a file managing interface for uploading, deleting, previewing, renaming, and editing files within a specified directory.

Published Apr 7, 2026CWE-78EPSS 2.38%

Overview

CVE-2026-35585 is a high-severity vulnerability. It was published on April 7, 2026 and has a CVSS 3.1 base score of 7.2 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.2, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

Technical description

File Browser is a file managing interface for uploading, deleting, previewing, renaming, and editing files within a specified directory. From 2.0.0 until 2.33.8, the hook system in File Browser — which executes administrator-defined shell commands on file events such as upload, rename, and delete — is vulnerable to OS command injection. Variable substitution for values like $FILE and $USERNAME is performed via os.Expand without sanitization. An attacker with file write permission can craft a malicious filename containing shell metacharacters, causing the server to execute arbitrary OS commands when the hook fires. This results in Remote Code Execution (RCE). This feature has been disabled by default for all installations from v2.33.8 onwards, including for existent installations.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/filebrowser/filebrowser/issues/5199GitHubgithub.com/filebrowser/filebrowser/security/advisories/GHSA-jvpw-637p-h3pwGitHubgithub.com/filebrowser/filebrowser/security/advisories/GHSA-jvpw-637p-h3pw

How CyberStrike helps

Frequently asked questions

What is CVE-2026-35585?

CVE-2026-35585 is a high-severity vulnerability. It was published on April 7, 2026 and has a CVSS 3.1 base score of 7.2 (HIGH).

How severe is CVE-2026-35585?

This vulnerability has a CVSS 3.1 base score of 7.2, rated HIGH. It can be exploited remotely over the network. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2026-35585?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-35585?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-35585 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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