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    CVE-2022-21649

    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.

    Published:Jan 4, 2022
    Last Modified:Apr 22, 2025
    EPS:Jan 4, 2022
    EPSS Score:0.0037
    CVSS Score:7.6

    Affected Products

    Vendor
    Convos
    Product
    Convos

    Exploits

    https://www.huntr.dev/bounties/4532a0ac-4e7c-4fcf-9fe3-630e132325c0/https://www.huntr.dev/bounties/4532a0ac-4e7c-4fcf-9fe3-630e132325c0/

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High