CVE-2016-1564 : Multiple cross-site scripting (XSS) vulnerabilities in wp-includes/class-wp-them

Multiple cross-site scripting (XSS) vulnerabilities in wp-includes/class-wp-theme.php in WordPress before 4.4.1 allow remote attackers to inject arbitrary web script or HTML via a (1) stylesheet name or (2) template name to wp-admin/customize.php.

Published 2016-05-22 01:59:13

Updated 2025-04-12 10:46:41

Source Debian GNU/Linux

View at NVD, CVE.org

Vulnerability category: Cross site scripting (XSS)

Products affected by CVE-2016-1564

Wordpress » Wordpress
Versions up to, including, (<=) 4.4.0
cpe:2.3:a:wordpress:wordpress:*:*:*:*:*:*:*:*
Matching versions

Threat overview for CVE-2016-1564

Top countries where our scanners detected CVE-2016-1564

Top open port discovered on systems with this issue 80

IPs affected by CVE-2016-1564 5,896

Threat actors abusing to this issue? Yes

Find out if you^* are affected by CVE-2016-1564!

^*Directly or indirectly through your vendors, service providers and 3rd parties. Powered by attack surface intelligence from SecurityScorecard.

Exploit prediction scoring system (EPSS) score for CVE-2016-1564

EPSS FAQ

0.67%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 70 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2016-1564

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
4.3	MEDIUM	AV:N/AC:M/Au:N/C:N/I:P/A:N	8.6	2.9	NIST
Access Vector: Network Access Complexity: Medium Authentication: None Confidentiality Impact: None Integrity Impact: Partial Availability Impact: None
6.1	MEDIUM	CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N	2.8	2.7	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: Required Scope: Changed Confidentiality: Low Integrity: Low Availability: None

CWE ids for CVE-2016-1564

CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.

Assigned by: nvd@nist.gov (Primary)

References for CVE-2016-1564

http://twitter.com/brutelogic/statuses/685105483397619713

Brute Logic on Twitter: "WordPress <=4.4.1 #XSS /wp-admin/customize.php?theme=<svg onload=alert(1)> (for a logged in admin)"
Exploit
https://wordpress.org/news/2016/01/wordpress-4-4-1-security-and-maintenance-release/

News – WordPress 4.4.1 Security and Maintenance Release – WordPress.org
Patch;Vendor Advisory
https://wpvulndb.com/vulnerabilities/8358

WordPress 3.7-4.4 - Authenticated Cross-Site Scripting (XSS)
http://www.securitytracker.com/id/1034622

WordPress Input Validation Flaw in Error Messages Lets Remote Conduct Cross-Site Scripting Attacks - SecurityTracker
https://codex.wordpress.org/Version_4.4.1

Version 4.4.1 | WordPress.org
Patch;Vendor Advisory
https://core.trac.wordpress.org/changeset/36185

Changeset 36185 – WordPress Trac
http://www.debian.org/security/2016/dsa-3444

Debian -- Security Information -- DSA-3444-1 wordpress
http://www.openwall.com/lists/oss-security/2016/01/08/4

oss-security - Re: CVE Request: WordPress: cross-site scripting vulnerability fixed in new 4.4.1 release