Code Injection in Pug - CVE-2021-21353

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Main Vulnerability Database Vulnerabilities #VU51267

Code Injection in Pug - CVE-2021-21353

Published: March 8, 2021


Vulnerability identifier: #VU51267
CSH Severity: High
CVSSv4.0: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber
CVE-ID: CVE-2021-21353
CWE-ID: CWE-94
Exploitation vector: Remote access
Exploit availability: No public exploit available
Vulnerable software:
Pug
Software vendor:
Pugjs

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to improper input validation in visitMixin and visitMixinBlock within the "pretty" option. A remote attacker can send a specially crafted request and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.


Remediation

Install updates from vendor's website.

External links