CVE Intelligence

Kcseopro WP SEO Structured Data Schema vulnerabilities

🔔 Create alert RSS Version checker

Published CVEs affecting Kcseopro WP SEO Structured Data Schema: 1 record(s), with affected versions and fixes.

CVE-2026-3604 Medium · 4.9 CWE-79 May 12, 2026
WP SEO Structured Data Schema <= 2.8.1 - Authenticated (Contributor+) Stored Cross-Site Scripting via '_kcseo_ative_tab' Parameter
The WP SEO Structured Data Schema plugin for WordPress is vulnerable to Stored Cross-Site Scripting via the `_kcseo_ative_tab` parameter in all versions up to, and including, 2.8.1 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.