Vulnerability · Published Dec 18, 2025 · Assigned by VulnCheck
CVE-2023-53940Codigo Markdown Editor 1.0.1 Electron Arbitrary Code Execution via Markdown File
High 7.8
In plain English
A high-severity code injection in Codigo Markdown Editor from Alfonzm. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 10% of all known vulnerabilities).
Severity (CVSS 3.1)7.8High
Exploit odds (30 days)0.2%top 90.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official 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 (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Alfonzm | Codigo Markdown Editor | 1.0.1 |
Weakness: CWE-94 · Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
References
- ExploitDB-51432 exploit
- Product GitHub Repository product
- VulnCheck Advisory: Codigo Markdown Editor 1.0.1 Electron Arbitrary Code Execution via Markdown File third-party-advisory