Which versions of PHP are affected by CVE-2026-3734?

A high-severity vulnerability in SourceCodester Client Database Management System 1.0 allows unauthorized access to manager details through an unauthenticated endpoint.

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.

PHP CVE-2026-3734

Q: 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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X. EPSS exploitation probability: 0.0%.

MEDIUM

Incorrect Privilege Assignment (CWE-266)

2026-03-08 cna@vuldb.com

PHP Information Disclosure

5.5

CVSS 4.0 · NVD

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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

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)

Analysis Generated

Mar 12, 2026 - 21:55 vuln.today

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.

AnalysisAI

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. …

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Risk assessment & exploitation conditions
Attack chain visualization
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Threat intelligence from 22 sources
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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access

Send HTTP request to /fetch_manager_details.php

Exploit

Manipulate manager_id parameter

Execution

Bypass authorization checks

Impact

Access unauthorized manager data

Access

Send HTTP request to /fetch_manager_details.php

Exploit

Manipulate manager_id parameter

Execution

Bypass authorization checks

Impact

Access unauthorized manager data

Vulnerability AssessmentAI

Exploitation	SourceCodester Client Database Management System 1.0 with /fetch_manager_details.php endpoint accessible. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment	CVSS 7.3 (HIGH). … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario	A remote attacker could exploit this vulnerability to compromise the affected system.
Remediation	Monitor vendor advisories for a patch. … Detailed patch versions, workarounds, and compensating controls in full report.

Recommended ActionAI

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. …

Threat intelligence, references, and detailed analysis are available after sign-in.

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CVE-2026-3734 vulnerability details – vuln.today

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PHP CVE-2026-3734

Severity by source

CVSS VectorNVD

Lifecycle Timeline

DescriptionCVE.org

AnalysisAI

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Attack ChainAIDerived

Vulnerability AssessmentAI

Recommended ActionAI

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External POC / Exploit Code