CVE-2024-12878: Thedevoice Lazy Blocks

High severity, CVSS 7.1. EPSS: 0.6% chance of exploitation in the next 30 days.

The Custom Block Builder WordPress plugin before 3.8.3 does not sanitise and escape a parameter before outputting it back in the page, leading to a Reflected Cross-Site Scripting which could be used against high privilege users such as admin.

Affected products

• Thedevoice Lazy Blocks: before 3.8.3 (fixed in 3.8.3)

Published 2025-02-26. Last modified 2026-06-17.