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    CVE-2020-26210

    In BookStack before version 0.30.4, a user with permissions to edit a page could add an attached link which would execute untrusted JavaScript code when clicked by a viewer of the page. Dangerous content may remain in the database after this update. If you think this could have been exploited the linked advisory provides a SQL query to test. As a workaround, page edit permissions could be limited to only those that are trusted until you can upgrade although this will not address existing exploitation of this vulnerability. The issue is fixed in version 0.30.4.

    Published:Nov 3, 2020
    Last Modified:Nov 21, 2024
    EPS:Nov 3, 2020
    EPSS Score:0.00432
    CVSS Score:7.7

    Affected Products

    Vendor
    Bookstackapp
    Product
    Bookstack

    Exploits

    https://bookstackapp.com/blog/beta-release-v0-30-4/https://github.com/BookStackApp/BookStack/security/advisories/GHSA-7p2j-4h6p-cq3hhttps://bookstackapp.com/blog/beta-release-v0-30-4/https://github.com/BookStackApp/BookStack/security/advisories/GHSA-7p2j-4h6p-cq3h

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    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