CVSS base score
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
What the vulnerability does
The Yoast SEO plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘display_name’ author meta in all versions up to, and including, 22.6 due to insufficient input sanitization and output escaping. This makes it possible for authenticated attackers, with contributor-level access and above, to inject arbitrary web scripts in pages that will execute whenever a user accesses an injected page.
Explanation of Vulnerability in Simple Terms
Yoast SEO versions up to 22.6 contain a cross-site scripting vulnerability that allows authenticated users to inject malicious scripts affecting other site visitors. The vulnerability exists in the plugin's handling of user input and can impact site integrity and visitor security. Site administrators should update to a version newer than 22.6 to remediate this issue.
What an attacker can do
Inject malicious JavaScript that executes in other users' browsers when they visit the site.
Potential impact on your site
Visitor accounts and data could be compromised; site reputation and trust may be damaged if malicious scripts are deployed.
Conditions required to exploit
Attacker must have a low-privilege account (e.g., contributor or editor role) on the WordPress site.
Key dates
External resources
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