CVE-2020-26210— BookStack 跨站脚本漏洞

Cross-Site Scripting in BookStack

In BookStack before version 0.30.4, a user with permissions to edit a page could add an attached link which would execute untrusted JavaScript code when clicked by a viewer of the page. Dangerous content may remain in the database after this update. If you think this could have been exploited the linked advisory provides a SQL query to test. As a workaround, page edit permissions could be limited to only those that are trusted until you can upgrade although this will not address existing exploitation of this vulnerability. The issue is fixed in version 0.30.4.

CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:H/A:N

在Web页面生成时对输入的转义处理不恰当(跨站脚本)

BookStack 跨站脚本漏洞

BookStack是BookStackApp团队的一套开源的使用PHP和Laravel构建wiki文档的平台。 BookStack 0.30.4之前版本存在跨站脚本漏洞，该漏洞源于WEB应用缺少对客户端数据的正确验证，该漏洞可造成目标网站可以执行不受信任的JavaScript代码，进一步可能造成破坏数据库中数据的危害。

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