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WordPress core

CVE-2016-2222

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.

Severity
High 8.6
Published
22 May 2016
Last changed
17 Jun 2026
Added to UpHeron
17 Oct 2026
Sources
NVD

Affected software

SoftwareAffected versions
WordPressWordPress core · cpe:a:wordpress:wordpress
  • Version 4.4.1

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2016-2222
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2016-2222