What’s Vulnerable › Vulnerabilities

CVE-2023-53940: Codigo Markdown Editor 1.0.1 Electron Arbitrary Code Execution via Markdown File

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2025-12-18 · updated 2026-06-17
• Weakness: CWE-94

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.

Affected products

• Alfonzm Codigo Markdown Editor: 1.0.1

References

• https://github.com/alfonzm/codigo-app
• https://www.exploit-db.com/exploits/51432
• https://www.vulncheck.com/advisories/codigo-markdown-editor-electron-arbitrary-code-execution-via-markdown-file

Get alerted when CVE-2023-53940 or the next vulnerability affects your stack