Vulnerability Information
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Vulnerability Title
HTML sanitizer allows form elements in restricted in org.xwiki.commons:xwiki-commons-xml
Vulnerability Description
Xwiki commons is the common modules used by other XWiki top level projects. The HTML sanitizer that is included in XWiki since version 14.6RC1 allowed form and input HTML tags. In the context of XWiki, this allows an attacker without script right to either create forms that can be used for phishing attacks or also in the context of a sheet, the attacker could add an input like `{{html}}<input type="hidden" name="content" value="{{groovy}}println("Hello from Groovy!")" />{{/html}}` that would allow remote code execution when it is submitted by an admin (the sheet is rendered as part of the edit form). The attacker would need to ensure that the edit form looks plausible, though, which can be non-trivial as without script right the attacker cannot display the regular content of the document. This has been patched in XWiki 14.10.6 and 15.2RC1 by removing the central form-related tags from the list of allowed tags. Users are advised to upgrade. As a workaround an admin can manually disallow the tags by adding `form, input, select, textarea, button` to the configuration option `xml.htmlElementSanitizer.forbidTags` in the `xwiki.properties` configuration file.
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H
Vulnerability Type
输出中的特殊元素转义处理不恰当(注入)
Vulnerability Title
XWiki Commons 跨站脚本漏洞
Vulnerability Description
XWiki Commons是法国XWiki基金会的其他几个顶级 XWiki 项目共有的技术库。 XWiki Commons 9.6-rc-1到 14.10.6版本、 15.0-rc-1到 15.2-rc-1版本存在跨站脚本漏洞，该漏洞源于XWiki 中包含的 HTML 清理程序允许表单和输入 HTML 标签，这允许没有脚本权限的攻击者创建可用于网络钓鱼攻击的表单。
CVSS Information
N/A
Vulnerability Type
N/A