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I. Basic Information for CVE-2021-21422
Vulnerability Information

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Vulnerability Title
XSS Vulnerability in mongo-express
Source: NVD (National Vulnerability Database)
Vulnerability Description
mongo-express is a web-based MongoDB admin interface, written with Node.js and express. 1: As mentioned in this issue: https://github.com/mongo-express/mongo-express/issues/577, when the content of a cell grows larger than supported size, clicking on a row will show full document unescaped, however this needs admin interaction on cell. 2: Data cells identified as media will be rendered as media, without being sanitized. Example of different renders: image, audio, video, etc. As an example of type 1 attack, an unauthorized user who only can send a large amount of data in a field of a document may use a payload with embedded javascript. This could send an export of a collection to the attacker without even an admin knowing. Other types of attacks such as dropping a database\collection are possible.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
Source: NVD (National Vulnerability Database)
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: NVD (National Vulnerability Database)
Vulnerability Title
mongo-express 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
mongo-express是一款用于交互式管理MongoDB数据库的、基于Web的轻量级管理界面。 Mongo-express存在安全漏洞,该漏洞源于未经授权的用户可以发送大量数据。
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
mongo-expressmongo-express < v1.0.0-alpha.4 -
II. Public POCs for CVE-2021-21422
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III. Intelligence Information for CVE-2021-21422
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IV. Related Vulnerabilities
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