CVE-2026-33616Network attack vector

Database disclosure via blind mb24api SQL injection

Published Apr 2, 2026 · Updated Apr 2, 2026

Blind SQL injection in mb24api in MB connect line mbCONNECT24 and mymbCONNECT24 2.19.4 and earlier allows remote attackers to read database data. The endpoint incorporates untrusted input into an SQL SELECT command without neutralizing special elements, enabling blind query manipulation. No authentication or user interaction is required; the documented effect is arbitrary read access to the complete database, not data modification or service interruption.

CVSS severity7.5
High
EPSS probability0.34%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Blind SQL injection in mb24api in MB connect line mbCONNECT24 and mymbCONNECT24 2.19.4 and earlier allows remote attackers to read database data. The endpoint incorporates untrusted input into an SQL SELECT command without neutralizing special elements, enabling blind query manipulation. No authentication or user interaction is required; the documented effect is arbitrary read access to the complete database, not data modification or service interruption.

The record

CVE
CVE-2026-33616
Published
Apr 2, 2026
Updated
Apr 2, 2026
Vendor
MB connect line
Product
mbCONNECT24
Classifications
CWE-89, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 2, 2026CVE publishedPublication date reported by the CVE source.
  2. Apr 2, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=0.0.0 <=2.19.4

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

MB connect line · mbCONNECT24version=0.0.0 <=2.19.4
MB connect line · mymbCONNECT24version=0.0.0 <=2.19.4

Published CVSS scores

7.5CERT VDECVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-89Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection')
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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