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Vulnerability record · CVE-2026-30933 · published 10 March 2026

CVE-2026-30933: Filebrowser information exposure vulnerability

Filebrowser · Filebrowser

FileBrowser Quantum is a free, self-hosted, web-based file manager. Prior to 1.3.1-beta and 1.2.2-stable, the remediation for CVE-2026-27611 is incomplete. Password protected shares still disclose tokenized downloadURL via /public/api/share/info. This vulnerability is fixed in 1.3.1-beta and 1.2.2-stable.

7.5 CVSS 3.1 High EPSS 0.52% · top 57.9% CWE-200 · Information exposureCWE-306 · Missing authentication for critical function
7.5CVSS 3.1 base score
0.52%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
3References, 1 tagged exploit
17 Jun 2026Last modified by NVD

Description

FileBrowser Quantum is a free, self-hosted, web-based file manager. Prior to 1.3.1-beta and 1.2.2-stable, the remediation for CVE-2026-27611 is incomplete. Password protected shares still disclose tokenized downloadURL via /public/api/share/info. This vulnerability is fixed in 1.3.1-beta and 1.2.2-stable.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/gtsteffaniak/filebrowser/releases/tag/v1.2.2-stable Release Notes
https://github.com/gtsteffaniak/filebrowser/releases/tag/v1.3.1-beta Release Notes
https://github.com/gtsteffaniak/filebrowser/security/advisories/GHSA-525j-95gf-766f ExploitVendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

10.0CVE-2026-32760Filebrowser improper privilege management vulnerabilityFile Browser is a file managing interface for uploading, deleting, previewing, renaming, and editing files within a specified directory. In versions …EPSS 0.69%9.8CVE-2026-34528Filebrowser improper privilege management vulnerabilityFile Browser is a file managing interface for uploading, deleting, previewing, renaming, and editing files within a specified directory. Prior to ver…EPSS 0.66%9.0CVE-2026-34529Filebrowser cross-site scripting vulnerabilityFile Browser is a file managing interface for uploading, deleting, previewing, renaming, and editing files within a specified directory. Prior to ver…EPSS 0.39%9.0CVE-2023-39612Filebrowser cross-site scripting vulnerabilityA cross-site scripting (XSS) vulnerability in FileBrowser before v2.23.0 allows an authenticated attacker to escalate privileges to Administrator via…EPSS 0.88%8.8CVE-2026-35607Filebrowser improper privilege management vulnerabilityFile Browser is a file managing interface for uploading, deleting, previewing, renaming, and editing files within a specified directory. Prior to 2.6…EPSS 0.56%8.8CVE-2021-46398Filebrowser cross-site request forgery vulnerabilityA Cross-Site Request Forgery vulnerability exists in Filebrowser < 2.18.0 that allows attackers to create a backdoor user with admin privilege and ge…EPSS 6.7%8.2CVE-2026-35604Filebrowser incorrect authorization vulnerabilityFile Browser is a file managing interface for uploading, deleting, previewing, renaming, and editing files within a specified directory. Prior to 2.6…EPSS 0.43%8.1CVE-2026-29188Filebrowser improper access control vulnerabilityFile Browser provides a file managing interface within a specified directory and it can be used to upload, delete, preview, rename and edit files. Pr…EPSS 0.59%

Source: NIST National Vulnerability Database (record CVE-2026-30933), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.