Which products and versions are affected by CVE-2023-40495?

Affected: Simple Editor (Lg) versions 3.21.0, >= LG Simple Editor 3.21.0. The full list is in the CVE brief.

Is CVE-2023-40495 being exploited in the wild?

It is not listed in any known-exploited vulnerabilities catalog.

Is CVE-2023-40495 in the CISA KEV catalog?

No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.

Is there a public exploit for CVE-2023-40495?

No public exploit code is known.

Is there a fix for CVE-2023-40495?

No fixed version is listed yet; check the vendor advisory for mitigations.

How urgently should CVE-2023-40495 be patched?

Brandefense priority: patch immediately, because it is very likely to be exploited soon.

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Vulnerability Intelligence

CVE-2023-40495

High

LG Simple Editor copyTemplateAll Directory Traversal Information Disclosure Vulnerability.

Published May 3, 2024 · Updated Feb 4, 2025

Key Facts

Patch immediately

CVE-2023-40495 is a high-severity vulnerability (CVSS 7.5 v3.1) affecting Simple Editor (Lg).
It is not listed in any known-exploited vulnerabilities catalog. No public exploit code is known.
EPSS estimates a 76% probability of exploitation in the next 30 days.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.

CVSS v3.1

7.5

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

EPSS (30-day exploit likelihood)

76%

Higher than 99.5% of all scored CVEs

Exploited in the wild

No known

Not in a known-exploited catalog

Public exploit code

None known

Get the full CVE-2023-40495 brief as a PDF

Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.

Description

LG Simple Editor copyTemplateAll Directory Traversal Information Disclosure Vulnerability. This vulnerability allows remote attackers to disclose sensitive information on affected installations of LG Simple Editor. Authentication is not required to exploit this vulnerability.

The specific flaw exists within the copyTemplateAll 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 disclose information in the context of SYSTEM. . Was ZDI-CAN-19922.

Affected Products

2 affected entries in total

Product	Affected versions	Fixed in
Simple EditorLg	3.21.0, >= LG Simple Editor 3.21.0	n/a

Timeline

Publicly disclosed
May 3, 2024
Last updated
Feb 4, 2025

Weakness Type

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

References

advisoryUSOM advisory
advisoryhttps://www.zerodayinitiative.com/advisories/ZDI-23-1195/
advisoryhttps://www.zerodayinitiative.com/advisories/ZDI-23-1196/
advisoryZDI-23-1201
advisoryhttps://www.zerodayinitiative.com/advisories/ZDI-23-1210/

7 more references in the full CVE brief

FAQ

Common Questions.

LG Simple Editor copyTemplateAll Directory Traversal Information Disclosure Vulnerability.
Affected: Simple Editor (Lg) versions 3.21.0, >= LG Simple Editor 3.21.0. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
No public exploit code is known.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.

Is CVE-2023-40495 Running On Your Attack Surface?

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