Which versions of PHP are affected by CVE-2026-3800?

Organizations using A vulnerability should be aware of moderate risk from CVE-2026-3800, a improper access control vulnerability rated CVSS 6.3.

Is there a public PoC exploit available for CVE-2026-3800?

Yes, a public proof-of-concept exploit is available for CVE-2026-3800. Prioritise patching immediately. EPSS: 0.0%.

PHP CVE-2026-3800

Q: What is the CVSS score of CVE-2026-3800?

CVE-2026-3800 has a CVSS 4.0 base score of 2.1 (Low). CVSS vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:L/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%.

LOW

Improper Access Control (CWE-284)

2026-03-09 cna@vuldb.com

PHP Authentication Bypass File Upload

2.1

CVSS 4.0

CVSS VectorNVD

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/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

Low

User Interaction

None

Scope

Lifecycle Timeline

Severity Changed

Apr 29, 2026 - 01:11 NVD

MEDIUM LOW

CVSS changed

Apr 29, 2026 - 01:11 NVD

6.3 (MEDIUM) 2.1 (LOW)

Analysis Generated

Mar 12, 2026 - 21:56 vuln.today

PoC Detected

Mar 09, 2026 - 15:03 vuln.today

Public exploit code

CVE Published

Mar 09, 2026 - 04:16 nvd

MEDIUM 6.3

DescriptionNVD

A vulnerability has been found in SourceCodester/janobe Resort Reservation System 1.0. Affected is the function doInsert of the file /controller.php?action=add. Such manipulation of the argument image leads to unrestricted upload. The attack can be executed remotely. The exploit has been disclosed to the public and may be used.

AnalysisAI

Unrestricted file upload in SourceCodester Resort Reservation System 1.0 allows authenticated remote attackers to upload arbitrary files via the image parameter in /controller.php?action=add, potentially leading to remote code execution. Public exploit code exists for this vulnerability, and no patch is currently available. …

RemediationAI

Within 30 days: Identify affected systems and apply vendor patches as part of regular patch cycle. Monitor vendor channels for patch availability.

Analysis

Detailed AI-generated intelligence summary covering attack vector, impact assessment, affected versions, remediation steps, and indicators of compromise.

POChttps://••••••••••.com/exploit

PATCHhttps://••••••••••.com/patch

ADVISORYhttps://••••••••••.com/advisory

Full analysis requires sign-in

Get intelligence summaries, risk assessment, exploit details, threat intel, and remediation guidance.

CVE-2026-3800 vulnerability details – vuln.today

Back