CVE-2021-47954: Layerbb

High severity, CVSS 8.2. EPSS: 0.2% chance of exploitation in the next 30 days.

LayerBB 1.1.4 contains an SQL injection vulnerability that allows unauthenticated attackers to manipulate database queries by injecting SQL code through the search_query parameter. Attackers can send POST requests to /search.php with malicious search_query values using CASE WHEN statements to extract sensitive database information.

Affected products

• Layerbb Layerbb: version 1.1.4 only

Published 2026-05-16. Last modified 2026-06-17.