CVE-2026-3764
Published: 08 March 2026
Summary
CVE-2026-3764 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?
Improper authorization vulnerability in a network-accessible web app (/superadmin_user_update.php) with no required privileges or interaction directly matches exploitation of public-facing applications.
NVD Description
A vulnerability was determined in SourceCodester Client Database Management System 1.0. The impacted element is an unknown function of the file /superadmin_user_update.php. This manipulation causes improper authorization. The attack can be initiated remotely. The exploit has been publicly disclosed and…
more
may be utilized.
Deeper analysisAI
CVE-2026-3764 is an improper authorization vulnerability (CWE-266, CWE-285) in SourceCodester Client Database Management System 1.0, published on 2026-03-08. The issue affects an unknown function within the file /superadmin_user_update.php. It carries 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), indicating high severity due to its network accessibility and low complexity.
Remote attackers require no privileges or user interaction to exploit the vulnerability over the network. Successful exploitation enables limited impacts on confidentiality, integrity, and availability, stemming from the improper authorization flaw. A proof-of-concept exploit has been publicly disclosed and may be utilized by attackers.
Advisories and details are available via VulDB entries at https://vuldb.com/?ctiid.349742, https://vuldb.com/?id.349742, and https://vuldb.com/?submit.768195, along with a GitHub Gist containing the exploit at https://gist.github.com/Adarshh-A/77dedc295e377e0492d15071e9bb2498. The vendor site is at https://www.sourcecodester.com/. No specific patches or mitigations are detailed in the provided information.
Details
- CWE(s)