Pug is an npm package which is a high-performance template engine. In pug before version 3.0.1, if a remote attacker was able to control the `pretty` option of the pug compiler, e.g. if you spread a user provided object such as the query parameters of a request into the pug template inputs, it was possible for them to achieve remote code execution on the node.js backend. This is fixed in version 3.0.1. This advisory applies to multiple pug packages including "pug", "pug-code-gen". pug-code-gen has a backported fix at version 2.0.3. This advisory is not exploitable if there is no way for un-trusted input to be passed to pug as the `pretty` option, e.g. if you compile templates in advance before applying user input to them, you do not need to upgrade.
CVE-2021-21353 - High Severity Vulnerability
pug-code-gen-2.0.1.tgz
Default code-generator for pug. It generates HTML via a JavaScript template function.
Library home page: https://registry.npmjs.org/pug-code-gen/-/pug-code-gen-2.0.1.tgz
Path to dependency file: /package.json
Path to vulnerable library: /node_modules/pug-code-gen/package.json
Dependency Hierarchy: - pug-2.0.3.tgz (Root Library) - :x: **pug-code-gen-2.0.1.tgz** (Vulnerable Library)
pug-2.0.3.tgz
A clean, whitespace-sensitive template language for writing HTML
Library home page: https://registry.npmjs.org/pug/-/pug-2.0.3.tgz
Path to dependency file: /package.json
Path to vulnerable library: /node_modules/pug/package.json
Dependency Hierarchy: - :x: **pug-2.0.3.tgz** (Vulnerable Library)
Found in HEAD commit: 1117605e03f59450a2085a8e27e9c182f910efa4
Pug is an npm package which is a high-performance template engine. In pug before version 3.0.1, if a remote attacker was able to control the `pretty` option of the pug compiler, e.g. if you spread a user provided object such as the query parameters of a request into the pug template inputs, it was possible for them to achieve remote code execution on the node.js backend. This is fixed in version 3.0.1. This advisory applies to multiple pug packages including "pug", "pug-code-gen". pug-code-gen has a backported fix at version 2.0.3. This advisory is not exploitable if there is no way for un-trusted input to be passed to pug as the `pretty` option, e.g. if you compile templates in advance before applying user input to them, you do not need to upgrade.
Publish Date: 2021-03-03
URL: CVE-2021-21353
Base Score Metrics: - Exploitability Metrics: - Attack Vector: Network - Attack Complexity: High - Privileges Required: None - User Interaction: None - Scope: Changed - Impact Metrics: - Confidentiality Impact: High - Integrity Impact: High - Availability Impact: High
For more information on CVSS3 Scores, click here.Type: Upgrade version
Origin: https://github.com/advisories/GHSA-p493-635q-r6gr
Release Date: 2021-03-03
Fix Resolution (pug-code-gen): 2.0.3
Direct dependency fix Resolution (pug): 2.0.4
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