CVE-2021-33563

    Dashboard / Vulnerabilities / CVE-2021-33563

    CVE-2021-33563

    Published: 24 May 2021Last Modified: 7 Aug 2026

    Summary:

    Details: Koel before 5.1.4 lacks login throttling, lacks a password strength policy, and shows whether a failed login attempt had a valid username. This might make brute-force attacks easier.

    References: https://github.com/koel/koel/releases/tag/v5.1.4, https://huntr.dev/bounties/1-other-koel/koel/

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -6b7cb88e6dfcb5fb9dd833158f30f40dbe618a8f

    Affected versions

    v5.1.3
    v5.1.2
    v5.1.1
    v5.1.0

    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
    CVE-2021-33563 | CVE-DB