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CVE-2026-54090

HIGH
8.7
CVSS 4.0
Description
File Browser is a file managing interface for uploading, deleting, previewing, renaming, and editing files within a specified directory. Prior to 2.33.8, when a shell interpreter is configured (e.g. /bin/sh -c), the command allowlist can be bypassed through shell metacharacters. The allowlist validates only the first token of user input, but the entire raw string is handed to the shell — semicolons, pipes, backticks, and $() all work to chain arbitrary commands after a permitted one. This vulnerability is fixed in 2.33.8.

Metadata

CVE ID
CVE-2026-54090
State
PUBLISHED
Assigner
GitHub_M
Reserved
2026-06-11 18:44 UTC
Published
2026-06-25 17:51 UTC
Last updated
2026-06-25 17:51 UTC
Primary CWE
CWE-77
CWE-77: Improper Neutralization of Special Elements used in …
Vendor / Product
filebrowser / filebrowser
Sources
cve.org  ·  NVD

Severity & Metrics

8.7 HIGH CVSS 4.0
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Affected products (1)
VendorProductPlatformVersions
filebrowser filebrowser — < 2.33.8
Weakness (CWE)
CWESourceDescription
CWE-184 cna CWE-184: Incomplete List of Disallowed Inputs
CWE-77 cna CWE-77: Improper Neutralization of Special Elements used in a Command ('Command Injection')
CVSS scores (1)
ScoreSeverityVersionSourceVector
8.7 HIGH 4.0 cna CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
References (2)
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