GHSA-9c5c-5j4h-8q2c

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    GHSA-9c5c-5j4h-8q2c

    Published: 16 Dec 2021Last Modified: 8 Nov 2023
    Aliases:
    CVE-2021-4119

    Summary: BookStack is vulnerable to Improper Access Control.

    Details: BookStack prior to version 21.11.3 is vulnerable to Improper Access Control. A logged-in user with no privileges OR guest user (if public access enabled) can access the /search/users/select AJAX endpoint meant for admins to manage audit logs, to dump all usernames existing in the Bookstack database. This can also be used to harvest email belonging to a user because BookStack also uses the code where(`email`, `like`, `%` . $search . `%`) to search for users based on email.

    References: https://nvd.nist.gov/vuln/detail/CVE-2021-4119, https://github.com/bookstackapp/bookstack/commit/e765e618547c92f4e0b46caca6fb91f0174efd99, https://github.com/BookStackApp/BookStack/releases/tag/v21.11.3, https://github.com/bookstackapp/bookstack, https://huntr.dev/bounties/135f2d7d-ab0b-4351-99b9-889efac46fca

    Affected packages

    Package

    Name: ssddanbrown/bookstack

    Purl: pkg:composer/ssddanbrown/bookstack

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -21.11.3

    Affected versions

    0.7.2

    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
    GHSA-9c5c-5j4h-8q2c | CVE-DB