CVE-2013-4660

mediumpriority · track · 43EPSS 0.173 · 97 %ileexploit · weaponizedEUUS

grimoire priorityP1 · Urgent

Exploitable?

Public exploit

2 exploits · weaponized

Likely / severe?

17.3% (97th) EPSS

CVSS 6.8 · medium

Is it mine?

22 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · nvd · osv

EPSS · scored 2026-10-22

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.

cvss

Technical severity, 0–10. One row per scoring source.

6.8

010

base score 0–10 · higher = more severe · hover a vector to decode

v2.06.8mediumAV:N/AC:M/Au:N/C:P/I:P/A:Pprimary · NVD / NIST USexploitability 8.6 · impact 6.4

v2.06.5mediumAV:N/AC:M/Au:N/C:P/I:P/A:P/E:Fsecondary · CVSS-BT (t0sche)

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-20USprimaryCWE-20US

exploits (2)

Public proof-of-concept and weaponised exploit code.

exploit/multi/fileformat/nodejs_js_yaml_load_code_execNodejs js-yaml load() Code Executionweaponized · metasploit
EDB-28655Nodejs - 'js-yaml load()' Code Exec (Metasploit)functional · exploit_db

affected products (22)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
nodeca js-yaml≤ 2.0.4nvdUScpe:2.3:a:nodeca:js-yaml:*:*:*:*:*:*:*:*
nodeca js-yaml= 0.2.0nvdUScpe:2.3:a:nodeca:js-yaml:*:*:*:*:*:*:*:*
nodeca js-yaml= 0.2.1nvdUScpe:2.3:a:nodeca:js-yaml:*:*:*:*:*:*:*:*
nodeca js-yaml= 0.2.2nvdUScpe:2.3:a:nodeca:js-yaml:*:*:*:*:*:*:*:*
nodeca js-yaml= 0.3.0nvdUScpe:2.3:a:nodeca:js-yaml:*:*:*:*:*:*:*:*
nodeca js-yaml= 0.3.1nvdUScpe:2.3:a:nodeca:js-yaml:*:*:*:*:*:*:*:*
nodeca js-yaml= 0.3.2nvdUScpe:2.3:a:nodeca:js-yaml:*:*:*:*:*:*:*:*
nodeca js-yaml= 0.3.3nvdUScpe:2.3:a:nodeca:js-yaml:*:*:*:*:*:*:*:*
nodeca js-yaml= 0.3.4nvdUScpe:2.3:a:nodeca:js-yaml:*:*:*:*:*:*:*:*
nodeca js-yaml= 0.3.5nvdUScpe:2.3:a:nodeca:js-yaml:*:*:*:*:*:*:*:*
nodeca js-yaml= 0.3.6nvdUScpe:2.3:a:nodeca:js-yaml:*:*:*:*:*:*:*:*
nodeca js-yaml= 0.3.7nvdUScpe:2.3:a:nodeca:js-yaml:*:*:*:*:*:*:*:*
nodeca js-yaml= 1.0.0nvdUScpe:2.3:a:nodeca:js-yaml:*:*:*:*:*:*:*:*
nodeca js-yaml= 1.0.1nvdUScpe:2.3:a:nodeca:js-yaml:*:*:*:*:*:*:*:*
nodeca js-yaml= 1.0.2nvdUScpe:2.3:a:nodeca:js-yaml:*:*:*:*:*:*:*:*
nodeca js-yaml= 1.0.3nvdUScpe:2.3:a:nodeca:js-yaml:*:*:*:*:*:*:*:*
nodeca js-yaml= 2.0.0nvdUScpe:2.3:a:nodeca:js-yaml:*:*:*:*:*:*:*:*
nodeca js-yaml= 2.0.1nvdUScpe:2.3:a:nodeca:js-yaml:*:*:*:*:*:*:*:*
nodeca js-yaml= 2.0.2nvdUScpe:2.3:a:nodeca:js-yaml:*:*:*:*:*:*:*:*

showing 20 of 22

advisories (1)

Vendor and ecosystem advisories describing this.

GHSA-xxvw-45rp-3mj2Deserialization Code Execution in js-yaml2017-10-24ghsa · osvUS
Versions 2.0.4 and earlier of `js-yaml` are affected by a code execution vulnerability in the YAML deserializer. ## Proof of Concept ``` const yaml = require('js-yaml'); const x = `test: !!js/function > function f() { console.log(1); }();` yaml.load(x); ``` ## Recommendation Update js-yaml to version 2.0.5 or later, and ensure that all instances where the `.load()` method is called are updated to use `.safeLoad()` instead.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd osv NVD CVE.org MITRE

published 2013-06-28modified 2026-06-16

related (25,122)

Related entries.

ID	severity	EPSS	exploitable	published
CVE-2026-88771US	critical9.8OT critical	1.08% (65th)	KEV	2026-09-27
Improper input validation vulnerability in Citrix NetScaler ADC and Citrix NetScaler Gateway. This issue affects ADC: before 14.1-73.37, before 13.1-64.23, before 14.1-73.37 FIPS,…
CVE-2026-93952US	—OT critical	1.06% (64th)	KEV	2026-09-22
VeloCloud Orchestrator (VCO) on-prem has a security issue where this issue may allow a remote attacker to access privileged internal functionality and impact the VCO host. Successf…
CVE-2026-12569US	critical9.8OT critical	46.0% (99th)	KEV	2026-06-18
A critical remote code execution (RCE) vulnerability has been reported in PTC Windchill PDMlink and PTC FlexPLM. The vulnerability may be exploited through the deserialization of u…
CVE-2026-34910US	—OT critical	45.8% (99th)	KEV	2026-05-22
A malicious actor with access to the network could exploit an Improper Input Validation vulnerability found in UniFi OS devices to execute a Command Injection.
CVE-2026-6973US	—OT critical	2.54% (85th)	KEV	2026-05-07
An Improper Input Validation in Ivanti EPMM before versions 12.6.1.1, 12.7.0.1, and 12.8.0.1 allows a remotely authenticated user with administrative access to achieve remote code…

+25117 more

references (6)

External citations — patches, advisories, analysis.

scry

Attackers weaponise vulnerabilities like this against internet-exposed services. See what is exposed on your perimeter with a free passive scan.

Free scan