# CVE-2026-40833: MB connect line mbCONNECT24 SQL injection in dash.php

Source: https://junglewise.ai/threats/cve-2026-40833-mb-connect-line-mbconnect24-sql-injection-in-dash-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-2026-40833 · Severity: high · CVSS 7.1 · Published 2026-05-27

MB connect line industrial communication platforms are affected by a security flaw that allows users with low-level access to manipulate the underlying database. An attacker could exploit this to view sensitive information across the entire system or insert unauthorized data into certain tables. This could lead to a significant breach of data confidentiality and minor disruptions to system integrity.

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-2026-40833 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-40833 being exploited in the wild.

**How severe is CVE-2026-40833?** High severity, with a CVSS score of 7.1, 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-2026-40833?** 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-2026-40833 attacked?** It is attacked over the network, in a network appliance.

**Am I affected by CVE-2026-40833?** 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 saveDashboardLayout function within dash.php of MB connect line mbCONNECT24 and mymbCONNECT24. The issue stems from improper neutralization of special elements within a SQL INSERT command. A remote attacker with low-privileged credentials can exploit this flaw to perform unauthorized database queries, potentially leading to full disclosure of database contents and the ability to insert records into non-critical tables. The vulnerability is reachable over the network and affects firmware versions up to and including 2.20.0.

## Affected products

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

## Timeline

- 2026-05-27: advisory: VDE-2026-044 published by CERT VDE
- 2026-05-27: disclosed: CVE-2026-40833 published to NVD

## 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)