Codigo Markdown Editor 1.0.1 Electron Arbitrary Code Execution via Markdown File

Advisories

severity: high
date: December 18, 2025
Affecting: Codigo Markdown Editor 1.0.1
CVE: CVE-2023-53940
CWE: CWE-94 Improper Control of Generation of Code ('Code Injection')
CVSS: 8.4
CVSS V4 Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
References: ExploitDB-51432
Product GitHub Repository
Credit: 8bitsec
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.