CVE-2026-41247

Critical

Description

elFinder is an open-source file manager for web, written in JavaScript using jQuery UI. Prior to 2.1.67, elFinder contains a command injection vulnerability in the resize command. The bg (background color) parameter is accepted from user input and passed through image resize/rotate processing. In configurations that use the ImageMagick CLI backend, this value is incorporated into shell command strings without sufficient escaping. An attacker able to invoke the resize command with a crafted bg value may achieve arbitrary command execution as the web server process user. This vulnerability is fixed in 2.1.67.

SeverityCritical

CVSS9.8

Exploit probability—

ProductStd42 Elfinder

PublishedApr 23, 2026

First seenApr 23, 2026

Weakness typeCWE-78OS command injection

How to fix

Update

std42 elfinder2.1.67 or later
studio-42/elfinder2.1.67 or later

Affected products

Product	Affected versions	Fixed in
std42 elfinder	v < 2.1.67	2.1.67
studio-42/elfinderPackagist	v < 2.1.67	2.1.67

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