UBUNTU-CVE-2021-21311

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    UBUNTU-CVE-2021-21311

    Published: 11 Feb 2021Last Modified: 5 Feb 2026
    Upstream:
    CVE-2021-21311
    Aliases:
    USN-5271-1

    Summary:

    Details: Adminer is an open-source database management in a single PHP file. In adminer from version 4.0.0 and before 4.7.9 there is a server-side request forgery vulnerability. Users of Adminer versions bundling all drivers (e.g. `adminer.php`) are affected. This is fixed in version 4.7.9.

    References: https://ubuntu.com/security/CVE-2021-21311, https://github.com/vrana/adminer/security/advisories/GHSA-x5r2-hj5c-8jx6, https://github.com/vrana/adminer/commit/ccd2374b0b12bd547417bf0dacdf153826c83351, https://github.com/vrana/adminer/commit/ccd2374b0b12bd547417bf0dacdf153826c83351, https://github.com/vrana/adminer/files/5957311/Adminer.SSRF.pdf, https://packagist.org/packages/vrana/adminer, https://ubuntu.com/security/notices/USN-5271-1, https://www.cve.org/CVERecord?id=CVE-2021-21311, https://www.cisa.gov/known-exploited-vulnerabilities-catalog

    Affected packages

    Package

    Name: adminer

    Purl: pkg:deb/ubuntu/[email protected]+esm1?arch=source&distro=esm-apps/xenial

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -4.2.1-1ubuntu1+esm1

    Affected versions

    4.2.1-1
    4.2.1-1ubuntu1

    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
    UBUNTU-CVE-2021-21311 | CVE-DB