Critical severity · published Dec 20, 2019
CVE-2019-19919
Versions of handlebars prior to 4.3.0 are vulnerable to Prototype Pollution leading to Remote Code Execution
9.8
CVSS
7.1%
EPSS
No
On KEV
Description
Versions of handlebars prior to 4.3.0 are vulnerable to Prototype Pollution leading to Remote Code Execution. Templates may alter an Object's __proto__ and __defineGetter__ properties, which may allow an attacker to execute arbitrary code through crafted payloads.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)7.1% · higher than 94% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
HA
Handlebars.js · Handlebars.js Project
1.0.6; 1.0.7; 1.0.8; 1.0.9; 1.0.10; 1.0.11; +34 more · source: NVD
TE
Tenable.sc · Tenable
before 5.19.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2019-19919
CVE.org
https://www.cve.org/CVERecord?id=CVE-2019-19919
Third Party Advisory
https://www.npmjs.com/advisories/1164
Patch
https://www.tenable.com/security/tns-2021-14
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