High severity · published May 22, 2016
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…
7.4
CVSS
4.4%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:H/A:N
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
Required
Confidentiality
None
Integrity
High
Availability
None
Scope
Changed
Exploitation
Is it being used?
Exploit prediction (EPSS)4.4% · higher than 91% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
WO
WordPress · WordPress
through 4.4.1 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2016-2221
CVE.org
https://www.cve.org/CVERecord?id=CVE-2016-2221
www.debian.org
http://www.debian.org/security/2016/dsa-3472
www.securityfocus.com
http://www.securityfocus.com/bid/82463
www.securitytracker.com
http://www.securitytracker.com/id/1034933
Patch
https://codex.wordpress.org/Version_4.4.2
Patch
https://core.trac.wordpress.org/changeset/36444
Patch
https://wordpress.org/news/2016/02/wordpress-4-4-2-security-and-maintenance-release/
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