CVE-2016-2221

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    CVE-2016-2221

    Published: 22 May 2016Last Modified: 8 Jul 2026

    Summary:

    Details: Open redirect vulnerability in the wp_validate_redirect function in wp-includes/pluggable.php in WordPress before 4.4.2 allows remote attackers to redirect users to arbitrary web sites and conduct phishing attacks via a malformed URL that triggers incorrect hostname parsing, as demonstrated by an https:example.com URL.

    References: http://www.securityfocus.com/bid/82463, http://www.securitytracker.com/id/1034933, https://wpvulndb.com/vulnerabilities/8377, http://www.debian.org/security/2016/dsa-3472, https://codex.wordpress.org/Version_4.4.2, https://core.trac.wordpress.org/changeset/36444, https://wordpress.org/news/2016/02/wordpress-4-4-2-security-and-maintenance-release/

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    4.4.1

    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-2016-2221 | CVE-DB