CVE-2023-53940

Codigo Markdown Editor 1.0.1 Electron Arbitrary Code Execution via Markdown File

CVSS 8.4 HIGHEPSS 0.2%CWE-94

Vexday Risk Score

21Low

SSVC decision (CISA)

Track

No exploitation signal → monitor

CVSS 8.4EPSS 0.2%KEV nãoPoC —Nuclei —Metasploit —Patch —

Lifecycle

18 Dec 2025Published on NVD

Recommendation: Monitor — no exploitation signal at the moment.

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.

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

Affected products

Alfonzm · Codigo Markdown Editor

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