CVE-2026-40739
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 · uneditedUnauthenticated PHP Object Injection in LuxeDrive <= 1.4 versions.
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 · moderate confidenceUnauthenticated PHP Object Injection vulnerability in LuxeDrive version 1.4 and earlier allows remote attackers to inject malicious PHP objects without authentication, potentially leading to remote code execution via the exploitation of unsafe deserialization.
Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.
CVSS 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
- High
- Privileges
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- High
- Integrity
- High
- Availability
- High
CVSS:3.1/AV:N/AC:H/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 LuxeDrive versionLocate the version file or header in the LuxeDrive installation (commonly in a config.php, version.php, or README file). Check the version number displayed in the admin panel or footer of the web interface.Affected if Version is 1.4 or below (1.0 through 1.4)
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Find PHP deserialization codeSearch the web root for PHP files containing 'unserialize(' function calls. Common locations include includes/, lib/, or class files. Use grep: grep -r "unserialize" /path/to/luxedrive/Affected if Files containing unserialize() accept input directly without sanitization
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Verify unauthenticated access to deserialization endpointInspect the PHP files with unserialize() calls to determine if they are accessible without authentication. Check if the script checks for logged-in status or session validation before processing the deserialized data.Affected if The deserialization code executes without requiring authentication (no session check, login verification, or token validation)
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Check for exposed serialization input vectorsReview HTTP endpoints (PHP files in root or api/ directories) that accept user input via POST, GET, or cookies and pass it to unserialize(). Test by reviewing source code or checking request handling.Affected if User-supplied data (POST parameters, cookies, or JSON input) flows directly into unserialize() calls
Environment is affected if running LuxeDrive version 1.4 or below AND unauthenticated PHP deserialization endpoints exist that accept user input without validation.
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.
From vendor dataUpdate LuxeDrive to a patched version beyond 1.4, or disable the affected component until a patch is available. If immediate patching is not possible, implement strict input validation and disable dangerous magic methods in the PHP environment.
- Consultation4.0 h
- Implementation2.0 h
- Testing4.0 h
- Review / QA2.0 h
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Scan for this in your stack
Free · runs locallyCheck whether your project pulls in CVE-2026-40739 — 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-2026-40739 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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- Verified mitigations, workarounds, and config changes
- Version or environment caveats, and links to real fixes
- No weaponised exploit code, or anything meant to cause harm
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