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    CVE-2022-26497

    BigBlueButton Greenlight 2.11.1 allows XSS. A threat actor could have a username containing a JavaScript payload. The payload gets executed in the browser of the victim in the "Share room access" dialog if the victim has shared access to the particular room with the attacker previously.

    Published:Jun 2, 2022
    Last Modified:Nov 21, 2024
    EPS:Jun 2, 2022
    EPSS Score:0.00245
    CVSS Score:5.4

    Affected Products

    Vendor
    Bigbluebutton
    Product
    Greenlight

    Exploits

    https://github.com/bigbluebutton/greenlight/blob/master/app/assets/javascripts/room.js#L352https://github.com/bigbluebutton/greenlight/blob/master/app/assets/javascripts/room.js#L352

    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