CVE-2026-3734
Published: 08 March 2026
Summary
CVE-2026-3734 is a high-severity Incorrect Privilege Assignment (CWE-266) vulnerability in Lerouxyxchire Client Database Management System. Its CVSS base score is 7.3 (High).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked at the 19.3th percentile by exploit likelihood (below the median); it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
Threat & Defense at a Glance
Threat & Defense Details
Likely Mitigating ControlsAI
Per-CVE control mapping for this CVE has not run yet; the list below is derived from the weakness types (CWEs) cited in the NVD entry.
Documented procedures facilitate correct implementation and ongoing management of authorization decisions.
Periodic reviews identify and correct flaws in authorization decisions or enforcement.
Specifying access authorizations for each account and requiring approvals for account requests enforces proper authorization decisions.
The control requires explicit definition of separated access authorizations, making incorrect privilege assignments that bundle conflicting duties harder to implement.
Ensures privileges are assigned only as necessary rather than incorrectly over-granted.
The control's documentation requirement reduces improper authorization by ensuring only mission-justified actions bypass authentication.
Establishing permitted attributes and values, plus auditing changes, ensures authorization decisions are based on correctly managed policy data.
Explicitly mandates authorizing remote access types before permitting connections, directly mitigating improper authorization.
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
Direct improper authorization vulnerability in a public-facing web endpoint (/fetch_manager_details.php) allowing remote unauthenticated exploitation via parameter manipulation (manager_id), which precisely matches the definition of T1190 Exploit Public-Facing Application.
NVD Description
A flaw has been found in SourceCodester Client Database Management System 1.0. Affected is an unknown function of the file /fetch_manager_details.php of the component Endpoint. This manipulation of the argument manager_id causes improper authorization. The attack can be initiated remotely.…
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The exploit has been published and may be used.
Deeper analysisAI
CVE-2026-3734 is an improper authorization vulnerability in SourceCodester Client Database Management System 1.0, affecting an unknown function in the file /fetch_manager_details.php within the Endpoint component. The flaw is triggered by manipulation of the manager_id argument, leading to authorization bypass. It was published on 2026-03-08 with a CVSS v3.1 base score of 7.3 (AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L) and is linked to CWEs-266 (Incorrect Privilege Assignment) and CWE-285 (Improper Authorization).
The vulnerability enables remote exploitation without authentication, privileges, or user interaction, requiring only low attack complexity. An attacker can manipulate the manager_id parameter to bypass authorization controls, potentially achieving low-level impacts on confidentiality, integrity, and availability.
Advisories are detailed on VulDB at https://vuldb.com/?ctiid.349712, https://vuldb.com/?id.349712, and https://vuldb.com/?submit.767227, with a proof-of-concept exploit available at https://gist.github.com/Adarshh-A/f25452a4fe736babd39b9a1b800e98d0. The vendor site is https://www.sourcecodester.com/. No patches are specified in the available information.
The exploit has been published and may be used in attacks.
Details
- CWE(s)