SEPTEMBER 23, 2026
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Case File

CVE-2026-3604

MEDIUM · CVSS 4.9 EPSS 0.23%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2026-05-12 · Last synced 2026-08-04

CyberRota Analysis

This is a medium severity vulnerability with a CVSS score of 4.9. It affects WordPress. Exploitation may require the attacker to be authenticated.

CVE
CVE-2026-3604
Severity
MEDIUM
CVSS
4.9
EPSS
0.23%
WordPress

Original NVD Description

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.