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CVE-2026-35605

File Browser has an access rule bypass via HasPrefix without trailing separator in path matching

Published: Apr 7, 2026Updated: Apr 16, 2026 Sources: CVE List NVDCWE-22
7.5HIGH
NVD MITRE
EPSS Score
0.4%
Top 68.1%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
Not 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 Matches() function in rules/rules.go uses strings.HasPrefix() without a trailing directory separator when matching paths against access rules. A rule for /uploads also matches /uploads_backup/, granting or denying access to unintended directories. This vulnerability is fixed in 2.63.1.

No summary for this CVE yet.

CVSS Vector Breakdown

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

CWE-22

Affected Products

filebrowser
oss-project
filebrowserOn-prem
Web & CMS Plugins / site-builder

Exploitability

Official Patch Available
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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

2 techniques
Collection
Discovery
View detailed technique mapping

References

https://github.com/filebrowser/filebrowser/pull/5889
github.com
https://github.com/filebrowser/filebrowser/security/advisories/GHSA-5q48-q4fm-g3m6
github.com

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