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CVE-2023-40499: LG Simple Editor mkdir Directory Traversal Arbitrary File Deletion Vulnerability

• Severity: critical (CVSS 9.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 2.0% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-05-03 · updated 2026-06-17
• Weakness: CWE-22

Description

LG Simple Editor mkdir Directory Traversal Arbitrary File Deletion Vulnerability. This vulnerability allows remote attackers to delete arbitrary files on affected installations of LG Simple Editor. Authentication is not required to exploit this vulnerability. The specific flaw exists within the mkdir 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 delete files in the context of SYSTEM. . Was ZDI-CAN-19926.

Affected products

• LG Simple Editor: 3.21.0

References

• https://www.zerodayinitiative.com/advisories/ZDI-23-1205/
• https://www.zerodayinitiative.com/advisories/ZDI-23-1205/

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