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Vulnerability record · CVE-2026-35604 · published 7 April 2026

CVE-2026-35604: Filebrowser incorrect authorization vulnerability

Filebrowser · Filebrowser

File Browser is a file managing interface for uploading, deleting, previewing, renaming, and editing files within a specified directory. Prior to 2.63.1, when an admin revokes a user's Share and Download permissions, existing share links created by that user remain fully accessible to unauthenticated users. The public share download handler does not re-check the share owner's current permissions. This vulnerability is fixed in 2.63.1.

8.2 CVSS 4.0 High EPSS 0.43% · top 65.7% CWE-863 · Incorrect authorization
8.2CVSS 4.0 base score
0.43%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
2References, 1 tagged exploit
17 Jun 2026Last modified by NVD

Description

File Browser is a file managing interface for uploading, deleting, previewing, renaming, and editing files within a specified directory. Prior to 2.63.1, when an admin revokes a user's Share and Download permissions, existing share links created by that user remain fully accessible to unauthenticated users. The public share download handler does not re-check the share owner's current permissions. This vulnerability is fixed in 2.63.1.

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

Affected products

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

References

LinkTags
https://github.com/filebrowser/filebrowser/pull/5888 Patch
https://github.com/filebrowser/filebrowser/security/advisories/GHSA-v9w4-gm2x-6rvf 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%8.1CVE-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%8.1CVE-2026-25890Filebrowser incorrect authorization 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 0.55%

Source: NIST National Vulnerability Database (record CVE-2026-35604), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.