CVE-2023-40506

LG Simple Editor copyContent XML External Entity Processing Information Disclosure Vulnerability

HIGH
7.5
CVSS Score
Published: May 3, 2024 at 02:11 AM UTC
Updated: June 17, 2026 at 06:18 AM UTC
1 product affected across 1 vendorSimple Editor

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Severity
HIGH7.5
Exploit prediction
EPSS 1%
SSVC
No known exploit

Description

LG Simple Editor copyContent XML External Entity Processing 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 implementation of the copyContent command. Due to the improper restriction of XML External Entity (XXE) references, a crafted document specifying a URI causes the XML parser to access the URI and embed the contents back into the XML document for further processing. An attacker can leverage this vulnerability to disclose information in the context of SYSTEM. . Was ZDI-CAN-20005.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 3.21.03.21.0
Affected range stops below 3.21.0, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusANALYZED
CWE
CWE-611

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