# CVE-2026-40830: MB connect line mbCONNECT24 SQL injection in admin.mbnetj.php

Source: https://junglewise.ai/threats/cve-2026-40830-mb-connect-line-mbconnect24-sql-injection-in-admin-mbnetj-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-2026-40830 · Severity: medium · CVSS 5.5 · Published 2026-05-27

MB connect line mbCONNECT24 and mymbCONNECT24 are remote service platforms used for industrial communication and remote maintenance. A vulnerability in the administrative interface allows a high-privileged user to perform unauthorized database operations. This could lead to the exposure of sensitive system data and the modification of certain non-critical database records.

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-2026-40830 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-40830 being exploited in the wild.

**How severe is CVE-2026-40830?** Medium severity, with a CVSS score of 5.5, 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-2026-40830?** 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-2026-40830 attacked?** It is attacked over the network, in a network appliance.

**Am I affected by CVE-2026-40830?** 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 UpdateParam function within the admin.mbnetj.php file of MB connect line mbCONNECT24 and mymbCONNECT24. The issue stems from improper neutralization of special elements within a SQL UPDATE command. A remote attacker with high privileges can exploit this flaw via the network without user interaction. Successful exploitation allows the attacker to read the entire database (total loss of confidentiality) and modify values in non-critical tables (partial loss of integrity). The vulnerability is addressed in versions newer than 2.20.0.

## Affected products

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

## Timeline

- 2026-05-27: advisory: Advisory published by CERT VDE and NVD

## References

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

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- [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)
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