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 21.0 is vulnerable; prior versions may also be affected.

Remediation

Update to plugin version 21.1 or latest

References

https://www.wordfence.com/threat-intel/vulnerabilities/wordpress-plugins/wordpress-seo/yoast-seo-210-authenticated-seo-manager-stored-cross-site-scripting

Related Vulnerabilities

MySQL CVE-2013-3812 Vulnerability (CVE-2013-3812)

PHP Improper Input Validation Vulnerability (CVE-2012-4388)

ReviveAdserver Authorization Bypass Through User-Controlled Key Vulnerability (CVE-2025-52670)

Claroline Cross-Site Request Forgery (CSRF) Vulnerability (CVE-2008-3262)

WordPress Plugin Import Spreadsheets from Microsoft Excel Arbitrary File Upload (10.1.4)

Severity

High

Classification

CVE-2023-40680 CWE-79 CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:L/I:L/A:N CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N

Tags

Missing Update XSS