CVE-2023-40498
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 · uneditedLG Simple Editor cp Command Directory Traversal Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of LG Simple Editor. Authentication is not required to exploit this vulnerability. The specific flaw exists within the cp command implemented in the makeDetailContent method. The issue results from the lack of proper validation of a user-supplied path prior to using it in file operations. An attacker can leverage this vulnerability to execute code in the context of SYSTEM. . Was ZDI-CAN-19925.
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 confidenceLG Simple Editor contains a directory traversal vulnerability in the cp (copy) command implementation within the makeDetailContent method. The application fails to validate user-supplied paths before performing file operations, allowing an unauthenticated attacker to traverse directories and potentially execute arbitrary code in the SYSTEM context.
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= 3.21.0CVSS 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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Verify LG Simple Editor installationCheck for LG Simple Editor installation on the system - look for the application in standard program directories or check system inventory/registry for installed software.Affected if LG Simple Editor version 3.21.0 is installed on the system.
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Confirm installed versionLocate and read the application version information - check the application executable properties, installation folder for version files, or use system inventory tools to query the installed software version.Affected if The installed version is exactly 3.21.0.
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Check application accessibilityVerify the LG Simple Editor web interface or service is accessible and running. This typically involves checking if the application service is active and responding to requests.Affected if The application is running and accessible to network or local users.
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Verify cp command functionalityConfirm the makeDetailContent method with cp command functionality is present and enabled in the application. This may require reviewing application configuration or attempting to access the specific endpoint/feature.Affected if The cp command feature within makeDetailContent method is accessible and enabled.
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Check application execution contextExamine the user context the LG Simple Editor service or process runs under - verify if it executes as SYSTEM, administrator, or a privileged user account.Affected if The application runs with SYSTEM or elevated privileges, allowing the vulnerability to be exploited for higher-impact code execution.
You are affected if LG Simple Editor version 3.21.0 is installed and running with the cp command functionality accessible, particularly under SYSTEM or elevated privileges.
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 dataApply the vendor patch or upgrade to a patched version of LG Simple Editor that addresses the path validation vulnerability in the cp command.
- Consultation2.0 h
- Implementation4.0 h
- Testing6.0 h
- Review / QA3.0 h
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Free · runs locallyCheck whether your project pulls in CVE-2023-40498 — 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-2023-40498 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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