CVE-2023-40495Network attack vector

Unauthenticated file disclosure via copyTemplateAll path traversal

Published May 3, 2024 · Updated Feb 4, 2025

Path traversal in LG Simple Editor 3.21.0 allows remote attackers to read sensitive files through the copyTemplateAll method. The method uses a caller-supplied path in file operations without restricting it to the intended template directory. No authentication or user interaction is required, and successful traversal exposes files readable by the SYSTEM account while leaving integrity and availability unaffected.

CVSS severity7.5
High
EPSS probability75.65%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path traversal in LG Simple Editor 3.21.0 allows remote attackers to read sensitive files through the copyTemplateAll method. The method uses a caller-supplied path in file operations without restricting it to the intended template directory. No authentication or user interaction is required, and successful traversal exposes files readable by the SYSTEM account while leaving integrity and availability unaffected.

The record

CVE
CVE-2023-40495
Published
May 3, 2024
Updated
Feb 4, 2025
Vendor
LG Electronics
Product
LG Simple Editor
Classifications
CWE-22, T1005
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 3, 2024CVE publishedPublication date reported by the CVE source.
  2. Feb 4, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0 <3.21.0
  2. Affected versionversion=LG Simple Editor 3.21.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

LG Electronics · LG Simple Editorversion=0 <3.21.0; version=LG Simple Editor 3.21.0

Published CVSS scores

7.5CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
7.5Zero Day InitiativeCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
T1005Data from Local System

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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