漏洞信息
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Vulnerability Title
Mistune Image Directive CSS Injection Vulnerability
Vulnerability Description
Mistune is a Python Markdown parser with renderers and plugins. Prior to 3.2.1, the Image directive plugin validates the :width: and :height: options with a regex compiled as _num_re = re.compile(r"^\d+(?:\.\d*)?"). When the validated value is not a plain integer, render_block_image() inserts it directly into a style="width:...;" or style="height:...;" attribute. Because the value was accepted by the prefix-only regex, any CSS after the leading digits reaches the style= attribute verbatim and without escaping. This vulnerability is fixed in 3.2.1.
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:N/A:N
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Vulnerability Title
mistune 跨站脚本漏洞
Vulnerability Description
mistune是Hsiaoming Yang个人开发者的一个快速而强大的 Python Markdown 解析器。 mistune 3.2.1之前版本存在跨站脚本漏洞,该漏洞源于Image指令插件使用仅匹配前缀的正则表达式验证width和height选项,验证后的值直接插入style属性而未进行转义,允许注入任意CSS代码。
CVSS Information
N/A
Vulnerability Type
N/A