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I. Basic Information for CVE-2021-21353
Vulnerability Information

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Vulnerability Title
Remote code execution in pug
Source: NVD (National Vulnerability Database)
Vulnerability Description
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.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
输出中的特殊元素转义处理不恰当(注入)
Source: NVD (National Vulnerability Database)
Vulnerability Title
Pug 注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Tmont Pug是 (Tmont)开源的一个应用软件。提供了优化html的方式。 Pug 存在注入漏洞,攻击者可利用该漏洞编译器的“pretty”选项。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
VendorProductAffected VersionsCPESubscribe
pugjspug < 3.0.1 -
II. Public POCs for CVE-2021-21353
#POC DescriptionSource LinkShenlong Link
1Nonehttps://github.com/jinsu9758/PUG-RCE-CVE-2021-21353-POCPOC Details
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III. Intelligence Information for CVE-2021-21353
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IV. Related Vulnerabilities
V. Comments for CVE-2021-21353

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