What’s Vulnerable › Vulnerabilities

CVE-2021-46398

• Severity: high (CVSS 8.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 6.7% probability of exploitation in the next 30 days
• Public exploit or detection template: yes
• Published: 2022-02-04 · updated 2026-06-17
• Weakness: CWE-352

Description

A Cross-Site Request Forgery vulnerability exists in Filebrowser < 2.18.0 that allows attackers to create a backdoor user with admin privilege and get access to the filesystem via a malicious HTML webpage that is sent to the victim. An admin can run commands using the FileBrowser and hence it leads to RCE.

Affected products

• filebrowser: before 2.18.0 — fixed in 2.18.0

How to fix

Upgrade to a fixed version: filebrowser 2.18.0. Check the vendor advisory for mitigations.

References

• http://packetstormsecurity.com/files/165885/FileBrowser-2.17.2-Code-Execution-Cross-Site-Request-Forgery.html
• https://febin0x4e4a.blogspot.com/2022/01/critical-csrf-in-filebrowser.html
• https://febin0x4e4a.wordpress.com/2022/01/19/critical-csrf-in-filebrowser/
• https://febinj.medium.com/critical-csrf-to-rce-in-filebrowser-865a3c34b8e7
• https://github.com/filebrowser/filebrowser/commit/74b7cd8e81840537a8206317344f118093153e8d
• https://systemweakness.com/critical-csrf-to-rce-in-filebrowser-865a3c34b8e7
• http://packetstormsecurity.com/files/165885/FileBrowser-2.17.2-Code-Execution-Cross-Site-Request-Forgery.html
• https://febin0x4e4a.blogspot.com/2022/01/critical-csrf-in-filebrowser.html
• https://febin0x4e4a.wordpress.com/2022/01/19/critical-csrf-in-filebrowser/
• https://febinj.medium.com/critical-csrf-to-rce-in-filebrowser-865a3c34b8e7
• https://github.com/filebrowser/filebrowser/commit/74b7cd8e81840537a8206317344f118093153e8d
• https://systemweakness.com/critical-csrf-to-rce-in-filebrowser-865a3c34b8e7

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