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I. Basic Information for CVE-2021-39183
Vulnerability Information

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Vulnerability Title
Unsafe inline XSS Owncast
Source: NVD (National Vulnerability Database)
Vulnerability Description
Owncast is an open source, self-hosted live video streaming and chat server. In affected versions inline scripts are executed when Javascript is parsed via a paste action. This issue is patched in 0.0.9 by blocking unsafe-inline Content Security Policy and specifying the script-src. The worker-src is required to be set to blob for the video player.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:H/A:L
Source: NVD (National Vulnerability Database)
Vulnerability Type
在Web页面生成时对输入的转义处理不恰当(跨站脚本)
Source: NVD (National Vulnerability Database)
Vulnerability Title
Owncast 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Owncast是一个开源、自托管、去中心化、单用户实时视频流和聊天服务器。 Owncast 存在跨站脚本漏洞,在受影响的版本中,当通过粘贴操作解析 Javascript 时,将执行内联脚本。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
VendorProductAffected VersionsCPESubscribe
owncastowncast < 0.0.9 -
II. Public POCs for CVE-2021-39183
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III. Intelligence Information for CVE-2021-39183
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IV. Related Vulnerabilities
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