hedgedoc hedgedoc web页面中脚本相关html标签转义处理不恰当（基本跨站脚本）
CVE编号
CVE-2021-29503利用情况
暂无补丁情况
N/A披露时间
2021-05-20漏洞描述
HedgeDoc is a platform to write and share markdown. HedgeDoc before version 1.8.2 is vulnerable to a cross-site scripting attack using the YAML-metadata of a note. An attacker with write access to a note can embed HTML tags in the Open Graph metadata section of the note, resulting in the frontend rendering the script tag as part of the `<head>` section. Unless your instance prevents guests from editing notes, this vulnerability allows unauthenticated attackers to inject JavaScript into notes that allow guest edits. If your instance prevents guests from editing notes, this vulnerability allows authenticated attackers to inject JavaScript into any note pages they have write-access to. This vulnerability is patched in version 1.8.2. As a workaround, one can disable guest edits until the next update.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。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 | hedgedoc | hedgedoc | * | Up to (excluding) 1.8.2 | |||||
- 攻击路径 网络
- 攻击复杂度 低
- 权限要求 无
- 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
| 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） |
| CWE-80 | Web页面中脚本相关HTML标签转义处理不恰当（基本跨站脚本） |
Exp相关链接
版权声明
本站原创文章转载请注明文章出处及链接，谢谢合作！
评论