CVE-2021-23127

    Dashboard / Vulnerabilities / CVE-2021-23127

    CVE-2021-23127

    Published: 4 Mar 2021Last Modified: 8 Jul 2026

    Summary:

    Details: An issue was discovered in Joomla! 3.2.0 through 3.9.24. Usage of an insufficient length for the 2FA secret accoring to RFC 4226 of 10 bytes vs 20 bytes.

    References: https://developer.joomla.org/security-centre/841-20210301-core-insecure-randomness-within-2fa-secret-generation.html

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- acb7a6384561a8d5917fa9854c85f52cddec9550
    Fixed -aadf6979f8b99308c3621ea3af2ca98e678a477d

    Affected versions

    3.9.25-rc
    3.9.24
    3.9.24-rc2
    3.9.24-rc
    3.9.20-rc
    3.9.23
    3.9.23-rc2
    3.9.23-rc
    3.9.19
    3.9.22
    3.9.22-rc
    3.9.21
    3.9.21-rc
    3.9.20
    3.9.19-rc
    3.9.17-rc
    3.9.18
    3.9.17
    3.9.16
    3.9.15
    3.9.15-rc
    3.9.16-rc
    3.9.14
    3.9.14-rc
    3.9.13
    3.9.12
    3.9.13-rc2
    3.9.13-rc
    3.9.12-rc
    3.9.11
    3.9.10
    3.9.8
    3.9.11-rc
    3.9.9
    3.9.6
    3.9.5
    3.9.9-rc
    3.9.4
    3.9.3
    3.9.7
    3.9.7-rc
    3.9.2-rc
    3.9.1
    3.9.6-rc2
    3.9.6-rc
    3.9.0
    3.9.0-rc
    3.9.0-beta4
    3.9.5-rc
    3.9.4-rc
    3.9.3-rc
    3.9.2
    3.9.1-rc
    3.9.0-rc2
    3.9.0-beta3
    3.9.0-beta2
    3.9.0-beta

    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-2021-23127 | CVE-DB