CVE-2018-14028

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    CVE-2018-14028

    Published: 10 Aug 2018Last Modified: 8 Jul 2026

    Summary:

    Details: In WordPress 4.9.7, plugins uploaded via the admin area are not verified as being ZIP files. This allows for PHP files to be uploaded. Once a PHP file is uploaded, the plugin extraction fails, but the PHP file remains in a predictable wp-content/uploads location, allowing for an attacker to then execute the file. This represents a security risk in limited scenarios where an attacker (who does have the required capabilities for plugin uploads) cannot simply place arbitrary PHP code into a valid plugin ZIP file and upload that plugin, because a machine's wp-content/plugins directory permissions were set up to block all new plugins.

    References: http://www.securityfocus.com/bid/105060, https://core.trac.wordpress.org/ticket/44710, https://github.com/rastating/wordpress-exploit-framework/pull/52, https://rastating.github.io/unrestricted-file-upload-via-plugin-uploader-in-wordpress/

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- d1802a68ec7a3536f744d45afb72660e4fef0292
    Fixed -None

    Affected versions

    4.9.7

    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-2018-14028 | CVE-DB