torchbox wagtail 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-2021-32681

利用情况

暂无

补丁情况

N/A

披露时间

2021-06-18

漏洞描述

Wagtail is an open source content management system built on Django. A cross-site scripting vulnerability exists in versions 2.13-2.13.1, versions 2.12-2.12.4, and versions prior to 2.11.8. When the `{% include_block %}` template tag is used to output the value of a plain-text StreamField block (`CharBlock`, `TextBlock` or a similar user-defined block derived from `FieldBlock`), and that block does not specify a template for rendering, the tag output is not properly escaped as HTML. This could allow users to insert arbitrary HTML or scripting. This vulnerability is only exploitable by users with the ability to author StreamField content (i.e. users with 'editor' access to the Wagtail admin). Patched versions have been released as Wagtail 2.11.8 (for the LTS 2.11 branch), Wagtail 2.12.5, and Wagtail 2.13.2 (for the current 2.13 branch). As a workaround, site implementors who are unable to upgrade to a current supported version should audit their use of `{% include_block %}` to ensure it is not used to output `CharBlock` / `TextBlock` values with no associated template. Note that this only applies where `{% include_block %}` is used directly on that block (uses of `include_block` on a block _containing_ a CharBlock / TextBlock, such as a StructBlock, are unaffected). In these cases, the tag can be replaced with Django's `{{ ... }}` syntax - e.g. `{% include_block my_title_block %}` becomes `{{ my_title_block }}`.

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/wagtail/wagtail/releases/tag/v2.11.8
https://github.com/wagtail/wagtail/releases/tag/v2.12.5
https://github.com/wagtail/wagtail/releases/tag/v2.13.2
https://github.com/wagtail/wagtail/security/advisories/GHSA-xfrw-hxr5-ghqf

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	torchbox	wagtail	*		Up to (excluding) 2.11.8
	运行在以下环境
	应用	torchbox	wagtail	*	From (including) 2.12	Up to (including) 2.12.4
	运行在以下环境
	应用	torchbox	wagtail	*	From (including) 2.13	Up to (including) 2.13.1

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）