Which versions of PHP are affected by CVE-2026-1423?

Organizations using A vulnerability should be aware of moderate risk from CVE-2026-1423, a improper access control vulnerability rated CVSS 6.3.

Is there a public PoC exploit available for CVE-2026-1423?

Yes, a public proof-of-concept exploit is available for CVE-2026-1423. Prioritise patching immediately. EPSS: 0.0%.

PHP CVE-2026-1423

Q: What is the CVSS score of CVE-2026-1423?

CVE-2026-1423 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)

2026-01-26 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 - 22:00 vuln.today

PoC Detected

Jan 28, 2026 - 13:44 vuln.today

Public exploit code

CVE Published

Jan 26, 2026 - 07:16 nvd

MEDIUM 6.3

DescriptionNVD

A vulnerability was determined in code-projects Online Examination System 1.0. Affected by this issue is some unknown functionality of the file /admin_pic.php. Executing a manipulation can lead to unrestricted upload. The attack may be performed from remote. The exploit has been publicly disclosed and may be utilized.

AnalysisAI

Unrestricted file upload in code-projects Online Examination System 1.0 via the /admin_pic.php endpoint allows authenticated remote attackers to upload arbitrary files with minimal complexity. 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-2026-1423 vulnerability details – vuln.today

Back