# CVE-2026-40814: MB connect line mbCONNECT24 SQL injection in dataapi.php

Source: https://junglewise.ai/threats/cve-2026-40814-mb-connect-line-mbconnect24-sql-injection-in-dataapi-php  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-05-27. Updated: 2026-05-27  
License: CC BY 4.0 with a link back

CVE-2026-40814 · Severity: high · CVSS 7.5 · Published 2026-05-27

MB connect line mbCONNECT24 and mymbCONNECT24, platforms used for remote access and industrial monitoring, are affected by a security flaw that allows unauthorized access to their internal databases. An attacker can exploit this to steal sensitive information without needing a username or password. This could lead to a total loss of data confidentiality, potentially exposing industrial configurations or customer information.

Technologies: [MB connect line mbCONNECT24](https://junglewise.ai/threats/technologies/mbconnect24), [MB connect line mymbCONNECT24](https://junglewise.ai/threats/technologies/mymbconnect24). Vendors: [MB connect line](https://junglewise.ai/threats/vendors/mb-connect-line).

## Quick answers

**Is CVE-2026-40814 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-40814 being exploited in the wild.

**How severe is CVE-2026-40814?** High severity, with a CVSS score of 7.5, published 27 May 2026.

**Which products and versions are affected?** MB connect line mbCONNECT24 <= 2.20.0; MB connect line mymbCONNECT24 <= 2.20.0.

**Is there a fix for CVE-2026-40814?** No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.

**How is CVE-2026-40814 attacked?** It is attacked over the network, in a network appliance.

**Am I affected by CVE-2026-40814?** Check whether you run MB connect line mbCONNECT24 or MB connect line mymbCONNECT24 at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

A SQL injection vulnerability exists in the '_mb24confi_getTagAlarm' function within the 'dataapi.php' file of MB connect line mbCONNECT24 and mymbCONNECT24. The issue stems from improper neutralization of special elements in a SQL SELECT command, allowing an unauthenticated remote attacker to execute arbitrary SQL queries via the network. Successful exploitation enables the attacker to read sensitive data from the database, resulting in a total loss of confidentiality. The vulnerability affects firmware versions up to and including 2.20.0. Users are advised to contact the vendor for patch information or upgrade to a secure version if available.

## Affected products

- MB connect line mbCONNECT24 <= 2.20.0
- MB connect line mymbCONNECT24 <= 2.20.0

## Timeline

- 2026-05-27: disclosed: Initial advisory publication by CERT VDE
- 2026-05-27: advisory: NVD publication of CVE-2026-40814

## References

- [https://www.certvde.com/en/advisories/VDE-2026-044/](https://www.certvde.com/en/advisories/VDE-2026-044/)

## Related threats

- [MB connect line mbCONNECT24 SQL injection in getVpnData](https://junglewise.ai/threats/cve-2026-40820-a-high-privileged-remote-attacker-can-exploit-an-unauthenticated)
- [MB connect line and Helmholz OS command injection in system_certificates view](https://junglewise.ai/threats/cve-2026-14448-mb-connect-line-and-helmholz-os-command-injection-in-system)
- [MB connect line mbCONNECT24 forced browsing in configuration settings](https://junglewise.ai/threats/cve-2026-10521-mb-connect-line-mbconnect24-forced-browsing-in-configuration)
- [MB connect line mbCONNECT24 SQL injection in user_alarmprofile view](https://junglewise.ai/threats/cve-2026-40849-mb-connect-line-mbconnect24-sql-injection-in-user-alarmprofile)
- [MB connect line mbCONNECT24 SQL injection in tag view](https://junglewise.ai/threats/cve-2026-40848-mb-connect-line-mbconnect24-sql-injection-in-tag-view)