Vulnerability Information
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Vulnerability Title
YesWiki Vulnerable to Authenticated Stored XSS
Vulnerability Description
YesWiki is a wiki system written in PHP. In versions up to and including 4.4.5, it is possible for an authenticated user with rights to edit/create a page or comment to trigger a stored XSS which will be reflected on any page where the resource is loaded. The vulnerability makes use of the content edition feature and more specifically of the `{{attach}}` component allowing users to attach files/medias to a page. When a file is attached using the `{{attach}}` component, if the resource contained in the `file` attribute doesn't exist, then the server will generate a file upload button containing the filename. This vulnerability allows any malicious authenticated user that has the right to create a comment or edit a page to be able to steal accounts and therefore modify pages, comments, permissions, extract user data (emails), thus impacting the integrity, availability and confidentiality of a YesWiki instance. Version 4.5.0 contains a patch for the issue.
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:L
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
YesWiki 跨站脚本漏洞
Vulnerability Description
YesWiki是法国YesWiki组织的一个用 PHP 编写的 wiki 系统。用于以协作方式创建和管理网站。 YesWiki 4.4.5及之前版本存在跨站脚本漏洞，该漏洞源于attach组件处理不存在的文件名时输入验证不当，容易受到存储型跨站脚本攻击。
CVSS Information
N/A
Vulnerability Type
N/A