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CVE-2013-4660

MediumPublished

The JS-YAML module before 2.0.5 for Node.js parses input without properly considering the unsafe !!js/function tag, which allows remote attackers to execute...

Published: Jun 28, 2013
Updated: Sep 17, 2024
Assigning CNA: mitre
Evidence observed: Sep 30, 2013

Primary CVSS

6.8/ 10Medium

nvd · CVSS 2.0

AV:N/AC:M/Au:N/C:P/I:P/A:P

EPSS probability estimate

17.3%

Moderate · next 30 days

Percentile: 97.0%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

The JS-YAML module before 2.0.5 for Node.js parses input without properly considering the unsafe !!js/function tag, which allows remote attackers to execute arbitrary code via a crafted string that triggers an eval operation.

Sources

Nodejs - 'js-yaml load()' Code Exec (Metasploit)Exploit
Metasploit · multiple · Sep 30, 2013

Responsible use

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