requarks wiki.js 在web页面生成时对输入的转义处理不恰当（跨站脚本）

CVE编号

CVE-2021-43842

利用情况

暂无

补丁情况

N/A

披露时间

2021-12-21

漏洞描述

Wiki.js is a wiki app built on Node.js. Wiki.js versions 2.5.257 and earlier are vulnerable to stored cross-site scripting through a SVG file upload. By creating a crafted SVG file, a malicious Wiki.js user may stage a stored cross-site scripting attack. This allows the attacker to execute malicious JavaScript when the SVG is viewed directly by other users. Scripts do not execute when loaded inside a page via normal `<img>` tags. Commit 5d3e81496fba1f0fbd64eeb855f30f69a9040718 fixes this vulnerability by adding an optional (enabled by default) SVG sanitization step to all file uploads that match the SVG mime type. As a workaround, disable file upload for all non-trusted users. Wiki.js version 2.5.260 is the first production version to contain a patch. Version 2.5.258 is the first development build to contain a patch and is available only as a Docker image as requarks/wiki:canary-2.5.258.

解决建议

建议您更新当前系统或软件至最新版，完成漏洞的修复。

参考链接
https://github.com/Requarks/wiki/commit/5d3e81496fba1f0fbd64eeb855f30f69a9040718
https://github.com/Requarks/wiki/releases/tag/2.5.260
https://github.com/Requarks/wiki/security/advisories/GHSA-3qv4-gp35-rgh7

受影响软件情况

#	类型	厂商	产品	版本	影响面
1
	运行在以下环境
	应用	requarks	wiki.js	*		Up to (including) 2.5.257

CVSS3评分 5.4

• 攻击路径 网络
• 攻击复杂度 低
• 权限要求 低
• 影响范围 已更改
• 用户交互 需要
• 可用性 无
• 保密性 低
• 完整性 低

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N CWE-ID 漏洞类型 CWE-79 在Web页面生成时对输入的转义处理不恰当（跨站脚本）