Is CVE-2026-54090 actively exploited?

No active exploitation of CVE-2026-54090 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-54090 be exploited remotely?

Yes. CVE-2026-54090 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-54090?

CVE-2026-54090 has a CVSS score of 8.7 (HIGH).

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HIGH

CVE-2026-54090

CWE-77Published: June 25, 2026· Updated: Jun 26, 2026

8.7

CVSS v3.1

EPSS:0.32%probability of exploitation in 30 daysPercentile:24.1th

Official 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.

NVD Source

Technical Analysis

CVE-2026-54090 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires low privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

CVSS v3.1 Vector Breakdown

Exploitability

Attack VectorNetwork

Attack ComplexityLow

Privileges Req.Low

User InteractionNone

ScopeX

Impact

Confidentiality

Integrity

Availability

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/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