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CVE-2026-35606

File Browser discloses text file content via /api/resources endpoint bypassing Perm.Download check

Published: Apr 7, 2026Updated: Apr 16, 2026 Sources: CVE List NVDCWE-862
NVD MITRE
7.5CVSSHIGH
EPSS Score
0.3%
Top 81.1%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available

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, the resourceGetHandler in http/resource.go returns full text file content without checking the Perm.Download permission flag. All three other content-serving endpoints (/api/raw, /api/preview, /api/subtitle) correctly verify this permission before serving content. A user with download: false can read any text file within their scope through two bypass paths. This vulnerability is fixed in 2.63.1.

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:UC:HI:NA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:NIntegrity
None
A:NAvailability
None
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Weaknesses

CWE-862

Affected Products

filebrowserfilebrowser
On-prem
Web & CMS Plugins / site-builder
filebrowseross-projectWeb & CMS Pluginsaka filebrowser

Attack Graph

Products CVE Techniques Tactics

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Exploitability

Official Patch Available

MITRE ATT&CK

2 techniques
Initial Access
View detailed technique mapping

References

https://github.com/filebrowser/filebrowser/security/advisories/GHSA-67cg-cpj7-qgc9
github.com

Timeline

Published
Apr 7, 2026
Last Updated
Apr 16, 2026

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