What is the CVSS score of CVE-2026-3734?

CVE-2026-3734 has a CVSS 4.0 base score of 5.5 (Medium). CVSS vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P. EPSS exploitation probability: 0.0%.

Is there a public PoC exploit available for CVE-2026-3734?

Yes, a public proof-of-concept exploit is available for CVE-2026-3734. Prioritise patching immediately. EPSS: 0.0%.

How to fix or mitigate CVE-2026-3734?

Within 24 hours: Disable or restrict network access to /fetch_manager_details.php; isolate affected systems from production environments; conduct an audit for unauthorized access logs. Within 7 days: Implement Web Application Firewall rules to block requests to the vulnerable endpoint; deploy network segmentation to limit exposure; notify affected stakeholders of potential data exposure. Within 30 days: Migrate to an alternative database management solution or evaluate vendor remediation timeline; complete a full security assessment of the application; establish incident response procedures for similar vulnerabilities.

Client Database Management System CVE-2026-3734

MEDIUM

Incorrect Privilege Assignment (CWE-266)

2026-03-08 cna@vuldb.com

PHP Information Disclosure Client Database Management System Lerouxyxchire

5.5

CVSS 4.0 · NVD

View

Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain

Access

Send HTTP request to /fetch_manager_details.php
Exploit

Manipulate manager_id parameter
Execution

Bypass authorization checks
Impact

Access unauthorized manager data

Vulnerability Assessment

Weakness	CWE CWE-266 OWASP Top 10:2025 A06:2025 - Insecure Design ASVS 5.0 V8 - Authorization Privilege assignment review
Exploitation Conditions	SourceCodester Client Database Management System 1.0 with /fetch_manager_details.php endpoint accessible. No authentication required; remote unauthenticated exploitation of default installations.
Impact	CVSS 7.3 (HIGH). Attack vector: Network. Complexity: Low. Privileges required: None. User interaction: None. Exploitable via remote/network. Public exploit/POC available.
Exploit ScenarioDerived	A remote attacker could exploit this vulnerability to compromise the affected system.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).

No patch listed yet 0.0% exploitation probability (EPSS)

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AnalysisAIv1 – Mar 12, 2026

Improper authorization in SourceCodester Client Database Management System 1.0 allows remote attackers to manipulate the manager_id parameter in /fetch_manager_details.php to access unauthorized data. Public exploit code exists for this vulnerability, and no patch is currently available. Affected systems can be compromised over the network without authentication or user interaction.

Earlier versions of this analysis (1)

v1 Mar 12, 2026 - 21:55 CVSS 7.3

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. [CVSS 7.3 HIGH]

RemediationAI

Monitor vendor advisories for a patch. Restrict network access to the affected service where possible.

Affects your stack

Find out whether the stacks and servers you run are on an affected version.

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

Affects Client Database Management System. 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. The exploit has been published and may be used.

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Exploit and PoC references, threat intelligence from 22 sources

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Severity by source

NVD PRIMARY 5.5 MEDIUM

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

Attack Vector

Network

Attack Complexity

Low

Attack Requirements

None

Privileges Required

None

User Interaction

None

Vulnerable system: Confidentiality

Low

Vulnerable system: Integrity

Low

Vulnerable system: Availability

Low

Subsequent system: Confidentiality

None

Subsequent system: Integrity

None

Subsequent system: Availability

None

Lifecycle Timeline

Severity Changed

Apr 29, 2026 - 01:11 NVD

HIGH MEDIUM

CVSS changed

Apr 29, 2026 - 01:11 NVD

7.3 (HIGH) 5.5 (MEDIUM)

PoC Detected

Mar 09, 2026 - 16:36 vuln.today

Public exploit code

CVE Published

Mar 08, 2026 - 13:16 nvd

HIGH 7.3

DescriptionCVE.org

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. The exploit has been published and may be used.

Executive ViewAI

Why It Matters

A high-severity vulnerability in SourceCodester Client Database Management System 1.0 allows unauthorized access to manager details through an unauthenticated endpoint. This affects any organization using this system and poses a significant data exposure risk, as active exploits are publicly available. Immediate action is required to protect sensitive business and personnel information.

Business Impact: High

Compensating Controls

Implement WAF rules to block access to /fetch_manager_details.php endpoint; enforce network segmentation to restrict client access to the application; disable the vulnerable endpoint if business-critical functionality permits; require VPN access for all system users; enable enhanced logging and monitoring on the affected application; consider air-gapping the system until patch availability is confirmed.

Threat Intelligence Overview

EPSS Score

0.0%

Top 91% exploitable

Exploit

POC

Public exploit code exists

Data Quality

5 sources

Confidence: Medium

NVD

CVE.org

EPSS

GitHub

VulDB

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue

Severity MEDIUM

CISA KEV No

Public POC Yes

EPSS 0.0%

Patch available No

Active threat No

Deciding rule

MEDIUM severity (CVSS 4.0-6.9)

What every action level means

Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.

Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.

This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.

This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.

Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived

Out-of-Cycle

Exploitation· derived

Poc

System Exposure· derived

Open

Automatable· derived

Yes

Human Impact

High

Priority Score

Low Medium High Critical

KEV: 0

EPSS: 0

CVSS: +28

PoC: +20

Weaponized: 0

Threat intel: 0

Gov advisory: 0

Attack Technique

Information Disclosure MEDIUM

Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.