CVE-2016-2221

Description

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.

7.4

CVSS

Severity: High

CVSS 3.0 •

CVSS 2.0 •

EPSS 3.46% Top 15%

Vendor Advisory debian.org Vendor Advisory wordpress.org

Affected: n/a n/a

References

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

Frequently Asked Questions

What is the severity of CVE-2016-2221?: CVE-2016-2221 has been scored as a high severity vulnerability.
How to fix CVE-2016-2221?: To fix CVE-2016-2221, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2016-2221 being actively exploited in the wild?: It is possible that CVE-2016-2221 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~3% probability that this vulnerability will be exploited by malicious actors in the next 30 days.

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