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CVE-2026-73612

File Browser before v2.63.22 Authorization Bypass via Recursive Operations

Published: Aug 13, 2026Updated: Aug 13, 2026 Sources: CVE List NVDCWE-639
8.1HIGH
NVD MITRE
EPSS Score
0.3%
Top 81.9%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available
Self-Check
Not available

Description

File Browser before v2.63.22 fails to validate access rules for descendants during recursive copy, rename, and delete operations, allowing authenticated users to bypass path-based access controls. Attackers can copy, rename, or delete denied files by operating on their allowed parent directory, defeating rule-based isolation for confidentiality and integrity.

No summary for this CVE yet.

CVSS Vector Breakdown

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

CWE-639

Affected Products

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

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.
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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

1 technique
Initial Access
View detailed technique mapping

References

https://github.com/filebrowser/filebrowser/security/advisories/GHSA-77x8-73f4-5485
github.com
https://github.com/filebrowser/filebrowser/commit/72faf6dd3c85628e332d3e567124b86708ce2695
github.com
https://www.vulncheck.com/advisories/file-browser-before-authorization-bypass-via-recursive-operations
vulncheck.com

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