CVE-2026-2583: Creativethemeshq Blocksy

Medium severity, CVSS 6.4. EPSS: 0.3% chance of exploitation in the next 30 days.

The Blocksy theme for WordPress is vulnerable to Stored Cross-Site Scripting via the `blocksy_meta` metadata fields in all versions up to, and including, 2.1.30 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.

Affected products

• Creativethemeshq Blocksy: up to and including 2.1.30

Published 2026-03-02. Last modified 2026-06-17.