Description

WordPress Plugin Yoast SEO is prone to a cross-site scripting vulnerability because it fails to properly sanitize user-supplied input. An attacker may leverage this issue to execute arbitrary script code in the browser of an unsuspecting user in the context of the affected site. This can allow the attacker to steal cookie-based authentication credentials and launch other attacks. WordPress Plugin Yoast SEO version 5.7.1 is vulnerable; prior versions may also be affected.

Remediation

Update to plugin version 5.8.0 or latest

References

https://packetstormsecurity.com/files/145080/WordPress-Yoast-SEO-Cross-Site-Scripting.html

https://www.wordfence.com/blog/2017/11/vulnerabilities-yoast-seo-formidable-forms-duplicator-wordpress-plugins/

https://wordpress.org/support/topic/reflected-cross-site-scripting-xss-vulnerabilities/

https://plugins.svn.wordpress.org/wordpress-seo/trunk/readme.txt

Related Vulnerabilities

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Drupal Permissions, Privileges, and Access Controls Vulnerability (CVE-2010-3092)

silverstripeCMS Credentials Management Errors Vulnerability (CVE-2010-5080)

Moodle Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') Vulnerability (CVE-2011-4591)

Severity

High

Classification

CVE-2017-16842 CWE-79 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N

Tags

Missing Update XSS