PT-2016-5072 · WordPress · Wordpress

Ronni Skansing · Published 2016-02-08 · Updated 2017-11-04 · CVE-2016-2221

Positive Technologies (AI Summary)

CVSS v3.1

7.4

High

Base vector

AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:H/A:N

Name of the Vulnerable Software and Affected Versions WordPress versions prior to 4.4.2

Description The issue allows remote attackers to redirect users to arbitrary web sites and conduct phishing attacks via a malformed URL that triggers incorrect hostname parsing. For example, an https://example.com URL can be used to demonstrate this issue.

Recommendations For versions prior to 4.4.2, update to version 4.4.2 or later to resolve the issue. As a temporary workaround, consider restricting access to the wp validate redirect function in wp-includes/pluggable.php to minimize the risk of exploitation.

Fix

Related Identifiers

CVE-2016-2221

DLA-418-1

DSA-3472-1

Affected Products

Wordpress

References · 23

• https://security-tracker.debian.org/tracker/CVE-2016-2221 · Vendor Advisory
• https://codex.wordpress.org/Version_4.4.2 · Patch
• https://ubuntu.com/security/CVE-2016-2221 · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-2221 · Security Note
• https://osv.dev/vulnerability/DEBIAN-CVE-2016-2221 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2016-2221 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-2222 · Security Note
• https://wordpress.org/news/2016/02/wordpress-4-4-2-security-and-maintenance-release · Vendor Advisory
• https://security-tracker.debian.org/tracker/source-package/wordpress · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2016-2221 · Security Note
• https://security-tracker.debian.org/tracker/DSA-3472-1 · Vendor Advisory
• https://osv.dev/vulnerability/DSA-3472-1 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2016-2221 · Vendor Advisory
• https://core.trac.wordpress.org/changeset/36444 · Patch
• https://osv.dev/vulnerability/CVE-2016-2221 · Vendor Advisory