CVE-2016-2222

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    CVE-2016-2222

    Published: 22 May 2016Last Modified: 8 Jul 2026

    Summary:

    Details: The wp_http_validate_url function in wp-includes/http.php in WordPress before 4.4.2 allows remote attackers to conduct server-side request forgery (SSRF) attacks via a zero value in the first octet of an IPv4 address in the u parameter to wp-admin/press-this.php.

    References: http://www.securityfocus.com/bid/82454, http://www.securitytracker.com/id/1034933, https://core.trac.wordpress.org/changeset/36435, https://news.ycombinator.com/item?id=20433070, https://wpvulndb.com/vulnerabilities/8376, http://www.debian.org/security/2016/dsa-3472, https://codex.wordpress.org/Version_4.4.2, https://wordpress.org/news/2016/02/wordpress-4-4-2-security-and-maintenance-release/, https://hackerone.com/reports/110801

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 80d1f99a89bd7c892d2dccec915e62e8e4a6f8bb
    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-2016-2222 | CVE-DB