CVE-2016-2221

WordPress Core < 4.4.2 - Open Redirect via wp_validate_redirect

Severity Score

5.4

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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.

Vulnerabilidad de redirección abierta en la función wp_validate_redirect en wp-includes/pluggable.php en WordPress en versiones anteriores a 4.4.2 permite a atacantes remotos redirigir a los usuarios a sitios web arbitrarios y llevar acabo ataques de phishing a través de una URL mal formada que desencadena un análisis gramatical del nombre de host incorrecto, según lo demostrado mediante una URL https:example.com.

*Credits: Shailesh Suthar

CVSS Scores

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

None

Integrity

Low

Availability

Low

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Changed

Confidentiality

None

Integrity

High

Availability

None

Attack Vector

Network

Attack Complexity

Medium

Authentication

None

Confidentiality

Partial

Integrity

Partial

Availability

None

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2016-02-02 CVE Published
2016-02-04 CVE Reserved
2023-03-08 EPSS Updated
2024-08-05 CVE Updated
---------- Exploited in Wild
---------- KEV Due Date
---------- First Exploit

CWE

CWE-601: URL Redirection to Untrusted Site ('Open Redirect')

CAPEC

References (7)

URL	Tag	Source
http://www.securityfocus.com/bid/82463	Vdb Entry
http://www.securitytracker.com/id/1034933	Vdb Entry
https://wpvulndb.com/vulnerabilities/8377	X_refsource_misc

URL	Date	SRC

URL	Date	SRC
https://codex.wordpress.org/Version_4.4.2	2017-11-04
https://core.trac.wordpress.org/changeset/36444	2017-11-04
https://wordpress.org/news/2016/02/wordpress-4-4-2-security-and-maintenance-release	2017-11-04

URL	Date	SRC
http://www.debian.org/security/2016/dsa-3472	2017-11-04

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Wordpress Search vendor "Wordpress"		Wordpress Search vendor "Wordpress" for product "Wordpress"				<= 4.4.1 Search vendor "Wordpress" for product "Wordpress" and version " <= 4.4.1"		-		Affected