#VU55264 Prototype pollution in handlebars.js - CVE-2019-19919

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Main Vulnerability Database Vulnerabilities #VU55264

#VU55264 Prototype pollution in handlebars.js - CVE-2019-19919

Published: July 22, 2021


Vulnerability identifier: #VU55264
Vulnerability risk: Low
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear
CVE-ID: CVE-2019-19919
CWE-ID: CWE-94
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
handlebars.js
Software vendor:
The Handlebars Templating Language

Description

The disclosed vulnerability allows a remote attacker to perform cross-site scripting (XSS) attacks.

The vulnerability exists due to insufficient sanitization of user-supplied data. Templates may alter an Object's __proto__ and __defineGetter__ properties, which may allow an attacker to execute arbitrary code through crafted payloads.


Remediation

Install update from vendor's website.

External links