UpHeron
All vulnerabilities

WordPress core

CVE-2016-2221

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.

Severity
High 7.4
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
  • Every version up to 4.4.1

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2016-2221
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2016-2221