CVE-2026-40810
Deferred Deferred - Pending Action

Unauthenticated SQL Injection in Userinfo Endpoint

Publication date: 2026-05-27

Last updated on: 2026-05-27

Assigner: CERT VDE

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

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Meta Information

Published
2026-05-27
Last Modified
2026-05-27
Generated
2026-07-06
AI Q&A
2026-05-27
EPSS Evaluated
2026-07-05
NVD
CVE-2026-40810
EUVD
EUVD-2026-32110

Affected Vendors & Products

Showing 2 associated CPEs
Vendor Product Version / Range
mb_connect_line mbconnect24 *
mb_connect_line mymbconnect24 *

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-89 The product constructs all or part of an SQL command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended SQL command when it is sent to a downstream component. Without sufficient removal or quoting of SQL syntax in user-controllable inputs, the generated SQL query can cause those inputs to be interpreted as SQL instead of ordinary user data.

Attack-Flow Graph

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Executive Summary

CVE-2026-40810 is a high-severity SQL injection vulnerability found in MB connect line's mbCONNECT24 and mymbCONNECT24 products. It exists in the userinfo endpoint because special elements in a SQL SELECT command are not properly neutralized. This flaw allows an unauthenticated remote attacker to execute arbitrary SQL commands.

Compliance Impact

The vulnerability results in a total loss of confidentiality of the database due to an unauthenticated SQL injection attack. Such a loss of confidentiality can lead to non-compliance with data protection regulations like GDPR and HIPAA, which require the protection of sensitive personal and health information.

However, the provided information does not explicitly mention the impact on compliance with specific standards or regulations.

Impact Analysis

Exploitation of this vulnerability can lead to a total loss of confidentiality of the database. An attacker can remotely execute arbitrary SQL commands without authentication, potentially accessing sensitive information stored in the database.

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