CVE-2023-0273: Custom Content Shortcode Project Custom Content Shortcode

Medium severity, CVSS 5.4. EPSS: 0.4% chance of exploitation in the next 30 days.

The Custom Content Shortcode WordPress plugin through 4.0.2 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

• Custom Content Shortcode Project Custom Content Shortcode: up to and including 4.0.2

Published 2023-03-20. Last modified 2026-06-17.