正文

nextcloud circles 在web页面生成时对输入的转义处理不恰当（跨站脚本）

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CVE编号

CVE-2021-32782

利用情况

暂无

补丁情况

N/A

披露时间

2021-09-08
漏洞描述
Nextcloud Circles is an open source social network built for the nextcloud ecosystem. In affected versions the Nextcloud Circles application is vulnerable to a stored Cross-Site Scripting (XSS) vulnerability. Due the strict Content-Security-Policy shipped with Nextcloud, this issue is not exploitable on modern browsers supporting Content-Security-Policy. It is recommended that the Nextcloud Circles application is upgraded to 0.21.3, 0.20.10 or 0.19.14 to resolve this issue. As a workaround users may use a browser that has support for Content-Security-Policy. A notable exemption is Internet Explorer which does not support CSP properly.
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/nextcloud/circles/commit/dbb97a83ccb342c839a54f088aa19b8ba6844b0e
https://github.com/nextcloud/security-advisories/security/advisories/GHSA-hgp...
https://hackerone.com/reports/1217606
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 nextcloud circles * Up to
(excluding)
0.19.14
运行在以下环境
应用 nextcloud circles * From
(including)
0.20.0 		Up to
(excluding)
0.20.10
运行在以下环境
应用 nextcloud circles * From
(including)
0.21.0 		Up to
(excluding)
0.21.3
CVSS3评分 5.8
  • 攻击路径 网络
  • 攻击复杂度 高
  • 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 高
  • 完整性 无
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:C/C:H/I:N/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）