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CVE-2026-34528

8.1 · HIGH

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

Published Apr 1, 2026CWE-269EPSS 0.66%

Overview

CVE-2026-34528 is a high-severity vulnerability. It was published on April 1, 2026 and has a CVSS 3.1 base score of 8.1 (HIGH).

This vulnerability has a CVSS 3.1 base score of 8.1, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

File Browser is a file managing interface for uploading, deleting, previewing, renaming, and editing files within a specified directory. Prior to version 2.62.2, the signupHandler in File Browser applies default user permissions via d.settings.Defaults.Apply(user), then strips only Admin. The Execute permission and Commands list from the default user template are not stripped. When an administrator has enabled signup, server-side execution, and set Execute=true in the default user template, any unauthenticated user who self-registers inherits shell execution capabilities and can run arbitrary commands on the server. This issue has been patched in version 2.62.2.

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/releases/tag/v2.62.2GitHubgithub.com/filebrowser/filebrowser/security/advisories/GHSA-x8jc-jvqm-pm3fGitHubgithub.com/filebrowser/filebrowser/security/advisories/GHSA-x8jc-jvqm-pm3f

How CyberStrike helps

Frequently asked questions

What is CVE-2026-34528?

CVE-2026-34528 is a high-severity vulnerability. It was published on April 1, 2026 and has a CVSS 3.1 base score of 8.1 (HIGH).

How severe is CVE-2026-34528?

This vulnerability has a CVSS 3.1 base score of 8.1, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2026-34528?

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-2026-34528?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2026-34528 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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