CVE-2022-4666: Terakoya Markup (json-Ld) Structured In Schema.org

Medium severity, CVSS 5.4. EPSS: 0.5% chance of exploitation in the next 30 days.

The Markup (JSON-LD) structured in schema.org WordPress plugin through 4.8.1 does not validate and escape some of its shortcode attributes before outputting them back in a page/post where the shortcode is embed, which could allow users with the contributor role and above to perform Stored Cross-Site Scripting attacks.

Affected products

• Terakoya Markup (json-Ld) Structured In Schema.org: up to and including 4.8.1

Published 2023-02-21. Last modified 2026-06-17.