CVE-2026-40814 Unauthenticated SQLi in _mb24confi_getTagAlarm function

High 8.7 Published Updated

Unauthenticated attackers can exploit SQL injection in mbCONNECT24 to read sensitive data, requiring immediate attention from system administrators.

Exploited in the wild
Not known
Login needed
Not needed
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-40814?

CVE-2026-40814 is a high-severity SQL injection vulnerability in Helmholz mbCONNECT24, published on 27 May 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

An unauthenticated remote attacker can exploit an unauthenticated SQL Injection vulnerability in the dataapi.php files _mb24confi_getTagAlarm function due to improper neutralization of special elements in a SQL SELECT command. This can result in a total loss of confidentiality.

Weakness: CWE-89

Which versions are affected by CVE-2026-40814?

How do I fix CVE-2026-40814?

No fix has been published for CVE-2026-40814 yet. Limit exposure of the affected software until one is available.

Use parameterised queries everywhere and never build SQL by joining strings. Upgrade affected software first; a web application firewall only buys time. More about SQL injection.

Is CVE-2026-40814 being exploited?

There is no known exploitation of CVE-2026-40814 in the wild and no public exploit code.

Sources

Also known as GHSA-pgpg-4wf6-rfx5.

Is CVE-2026-40814 in your software?

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