bookstackapp bookstack 输出中的特殊元素转义处理不恰当（注入）

CVE编号

CVE-2020-26260

利用情况

暂无

补丁情况

N/A

披露时间

2020-12-10

漏洞描述

BookStack is a platform for storing and organising information and documentation. In BookStack before version 0.30.5, a user with permissions to edit a page could set certain image URL's to manipulate functionality in the exporting system, which would allow them to make server side requests and/or have access to a wider scope of files within the BookStack file storage locations. The issue was addressed in BookStack v0.30.5. As a workaround, page edit permissions could be limited to only those that are trusted until you can upgrade.

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://bookstackapp.com/blog/beta-release-v0-30-5/
https://github.com/BookStackApp/BookStack/releases/tag/v0.30.5
https://github.com/BookStackApp/BookStack/security/advisories/GHSA-8wfc-w2r5-x7cr

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	bookstackapp	bookstack	*		Up to (excluding) 0.30.5

CVSS3评分 6.4

• 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 无
• 可用性 无
• 保密性 低
• 完整性 低

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N CWE-ID 漏洞类型 CWE-74 输出中的特殊元素转义处理不恰当（注入）