CVE-2023-53940

HIGH

Codigo Markdown Editor 1.0.1 - Code Injection

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2023-53940. PoCs published by 8bitsec.

AI-analyzed exploit summary This exploit demonstrates arbitrary code execution in Codigo Markdown Editor v1.0.1 by leveraging an XSS vulnerability in the Electron-based application. The PoC uses a crafted markdown file with an embedded video tag containing an onerror event handler to execute system commands.

Description

Codigo Markdown Editor 1.0.1 contains a code execution vulnerability that allows attackers to run arbitrary system commands by crafting a malicious markdown file. Attackers can embed a video source with an onerror event that executes shell commands through Node.js child_process module when the file is opened.

Exploits (1)

exploitdb WORKING POC
by 8bitsec · textlocalmultiple
https://www.exploit-db.com/exploits/51432

This exploit demonstrates arbitrary code execution in Codigo Markdown Editor v1.0.1 by leveraging an XSS vulnerability in the Electron-based application. The PoC uses a crafted markdown file with an embedded video tag containing an onerror event handler to execute system commands.

Classification
Working Poc 90%
Attack Type
Rce
Complexity
Trivial
Reliability
Reliable
Target: Codigo Markdown Editor v1.0.1
No auth needed
Prerequisites: Ability to create and open a malicious markdown file in the target application
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (3)

Core 3

Scores

CVSS v3 7.8
EPSS 0.0017
EPSS Percentile 6.1%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact total

Details

CWE
CWE-94
Status published
Products (1)
Alfonzm/Codigo Markdown Editor 1.0.1
Published Dec 18, 2025
Tracked Since Feb 18, 2026