CVE-2026-2583

Name of the Vulnerable Software and Affected Versions Blocksy theme for WordPress versions up to and including 2.1.30

Description The Blocksy theme for WordPress is susceptible to Stored Cross-Site Scripting through the blocksy meta metadata fields. Insufficient input sanitization and output escaping allow authenticated attackers with Contributor-level access or higher to inject arbitrary web scripts into pages. These scripts will execute when a user accesses the injected page. The vulnerable parameter is blocksy meta.

Recommendations Update to a version of the Blocksy theme for WordPress later than 2.1.30.