CVE-2026-41247
Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.
NVD · uneditedelFinder 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.
Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.
dbcve analysis · high confidenceelFinder before 2.1.67 contains a command injection vulnerability in the resize command where the bg (background color) parameter is passed to ImageMagick CLI commands without proper escaping. An attacker able to supply a crafted bg value can achieve arbitrary command execution as the web server user.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
Affected products & versions What the vendor confirmedThe version ranges the vendor confirmed as vulnerable. If your version sits inside a range here, treat yourself as exposed until you have upgraded.
NVD · CPE data< 2.1.67CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.
From the vector- Attack vector
- Network
- Complexity
- Low
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.
dbcve checksWork through these to decide whether this CVE applies to you.
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Identify elFinder versionCheck the version.php or changelog file in the elFinder installation directory, or inspect the elFinder JavaScript/connector file for a version stringAffected if The installed version is before 2.1.67
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Confirm ImageMagick CLI backend is in useInspect elFinder configuration (usually connector.php or a config JSON file) for the 'imagemagick' or 'imagick' backend setting in the driver or volume configurationAffected if ImageMagick is configured as the image processing backend (not GD library)
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Verify resize command is availableCheck elFinder configuration for the 'resize' command in the commands array or disabledCommands settingAffected if The resize command is enabled and accessible to users
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Check for exposed connector endpointIdentify if the elFinder connector (typically php/connector.php or similar) is accessible without authentication or from untrusted sourcesAffected if The connector is reachable without proper access controls, allowing external bg parameter injection
You are affected if elFinder version is below 2.1.67 AND the ImageMagick CLI backend is configured AND the resize command is enabled AND the connector is accessible to untrusted users.
Generated from the published advisory. Verify against your own configuration.
Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.
dbcve · scoped2.1.67
Upgrade elFinder to version 2.1.67 or later. Additionally, verify if the ImageMagick CLI backend is in use and consider using the GD library backend as an alternative if feasible.
elFinder 2.1.67
- Upgrade elFinder to version 2.1.67 or later to resolve the command injection vulnerability in the resize command.
Generated from the published advisory — verify against the referenced sources before acting.
- Consultation2.0 h
- Implementation2.0 h
- Testing3.0 h
- Review / QA1.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2026-41247 — or any other known-vulnerable package — straight from your lock files. Free and open source; it runs locally and uploads nothing.
References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.
Primary sourcesPractitioner notes
ContributedPeer-ranked notes from engineers who’ve handled CVE-2026-41247 in production — separate from our analysis above.
The advisory tells you what broke. It rarely tells you what actually worked. If you’ve dealt with this one, that detail is what the next engineer is searching for.
- The version that genuinely resolved it — not the one the vendor claimed
- A config change or rule that shut the vector down
- A gotcha in the upgrade path that cost you an afternoon
No notes yet
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- Version or environment caveats, and links to real fixes
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