漏洞信息
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Vulnerability Title
AngleSharp: HTML5 Spec Compliance: mXSS via annotation-xml HTML Integration Point Bypass
Vulnerability Description
AngleSharp is a .NET library for parsing angle bracket based hyper-texts. Prior to 1.5.0, MathAnnotationXmlElement in AngleSharp/Mathml/Dom/Internal/MathAnnotationXmlElement.cs is not treated as an HTML integration point when its encoding attribute is text/html or application/xhtml+xml, causing Consume in AngleSharp/Html/Parser/HtmlDomBuilder.cs to route tokens through foreign-content parsing instead of HTML parsing. A sanitizer can therefore observe a different DOM from the browser that reparses the serialized output. An attacker can combine this namespace differential with markup-breaking characters in an attribute value so that an element hidden from the sanitizer becomes active script-capable HTML after browser reparse, resulting in mutation cross-site scripting. This issue is fixed in version 1.5.0.
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:H/A:N
Vulnerability Type
Web页面中脚本相关HTML标签转义处理不恰当(基本跨站脚本)
Vulnerability Title
AngleSharp 跨站脚本漏洞
Vulnerability Description
AngleSharp是AngleSharp组织的一款HTML解析器库 AngleSharp 1.5.0之前版本存在跨站脚本漏洞,该漏洞源于MathAnnotationXmlElement未作为HTML集成点处理,导致DOM解析差异,攻击者可利用该差异进行突变型跨站脚本攻击。
CVSS Information
N/A
Vulnerability Type
N/A