CVE-2026-33616: Mbconnectline MBCONNECT24

High severity, CVSS 7.5. EPSS: 0.6% chance of exploitation in the next 30 days.

An unauthenticated remote attacker can exploit an unauthenticated blind SQL Injection vulnerability in the mb24api endpoint due to improper neutralization of special elements in a SQL SELECT command. This can result in a total loss of confidentiality.

Affected products

• Mbconnectline MBCONNECT24: up to and including 2.19.4
• Mbconnectline MYMBCONNECT24: up to and including 2.19.4

Published 2026-04-02. Last modified 2026-06-17.