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 WP SEO Structured Data Schema plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the ‘Price Range’ parameter in all versions up to, and including, 2.7.11 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 that will execute whenever an administrator accesses the plugin settings page.
Explanation of Vulnerability in Simple Terms
WP SEO Structured Data Schema versions 2.7.11 and earlier contain a cross-site scripting vulnerability that allows authenticated users with low privileges to inject malicious scripts. The vulnerability has a changed scope, meaning the attack can affect other users or site functionality beyond the plugin itself. Site administrators should update to a version newer than 2.7.11.
What an attacker can do
Inject malicious JavaScript that executes in other users' browsers or affects site functionality.
Potential impact on your site
Authenticated attackers can deface content, steal session tokens, or redirect users to malicious sites.
Conditions required to exploit
Attacker must be logged in with low-level user privileges (e.g., contributor or subscriber role).
Key dates
External resources
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