CVE-2026-35604

File Browser share links remain accessible after Share/Download permissions are revoked

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.

Affected

filebrowser

CVSS v4.0 GITHUB

8.2 HIGHCVSS: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:X/V:X/RE:X/U:X

CVSS v4.0 GitHub

8.2 HIGHCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

CVSS v3.1 NVD

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

EPSS

0.43% chance of exploitation in the next 30 days, 35th percentile

Published

2026-04-07

Proof-of-concept exploits (1)

• advisories/GHSA-v9w4-gm2x-6rvf

Security advisories

• filebrowser/filebrowser/security/advisories/GHSA-v9w4-gm2x-6rvf
• filebrowser/filebrowser/pull/5888

References

• CVE Record
• NVD entry