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I. Basic Information for CVE-2020-26293
Vulnerability Information

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Vulnerability Title
Possible XSS bypass if style tag is allowed
Source: NVD (National Vulnerability Database)
Vulnerability Description
HtmlSanitizer is a .NET library for cleaning HTML fragments and documents from constructs that can lead to XSS attacks. In HtmlSanitizer before version 5.0.372, there is a possible XSS bypass if style tag is allowed. If you have explicitly allowed the `<style>` tag, an attacker could craft HTML that includes script after passing through the sanitizer. The default settings disallow the `<style>` tag so there is no risk if you have not explicitly allowed the `<style>` tag. The problem has been fixed in version 5.0.372.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/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
Mganss HtmlSanitizer 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Mganss HtmlSanitizer是Mganss个人开发者的一个基于C#、AngleSharp用于从清楚源代码中可能导致XSS攻击的HTML代码和文档的软件。 HtmlSanitizer 存在跨站脚本漏洞,攻击者可利用该漏洞就可以在通过杀毒软件后制作包含脚本的HTML。
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
mganssHtmlSanitizer < 5.0.372 -
II. Public POCs for CVE-2020-26293
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III. Intelligence Information for CVE-2020-26293
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IV. Related Vulnerabilities
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