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I. Basic Information for CVE-2022-21649
Vulnerability Information

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Vulnerability Title
Stored XSS via attribute in convos
Source: NVD (National Vulnerability Database)
Vulnerability Description
Convos is an open source multi-user chat that runs in a web browser. Characters starting with "https://" in the chat window create an <a> tag. Stored XSS vulnerability using onfocus and autofocus occurs because escaping exists for "<" or ">" but escaping for double quotes does not exist. Through this vulnerability, an attacker is capable to execute malicious scripts. Users are advised to update as soon as possible.
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:L/A:N
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
Nordaaker Convos 跨站脚本漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Nordaaker Convos是挪威Nordaaker公司的一款基于Web浏览器的开源多用户聊天应用程序。 Nordaaker Convos存在跨站脚本漏洞,该漏洞源于软件对于聊天窗口中的标签括号引号缺少有效的过滤和转义,导致存储型跨站脚本漏洞。通过该漏洞,攻击者能够执行恶意脚本。
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
convos-chatconvos >= 6.49, < 6.52 -
II. Public POCs for CVE-2022-21649
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III. Intelligence Information for CVE-2022-21649
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IV. Related Vulnerabilities
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