What is the CVSS score of CVE-2023-54335?

CVE-2023-54335 has a CVSS 3.1 base score of 9.8 (Critical). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 0.4%.

Which versions of PHP are affected by CVE-2023-54335?

Organizations using eXtplorer 2.1.14 face critical risk from CVE-2023-54335, a missing authentication vulnerability rated CVSS 9.8.

Is there a public PoC exploit available for CVE-2023-54335?

Yes, a public proof-of-concept exploit is available for CVE-2023-54335. Prioritise patching immediately. EPSS: 0.4%.

How to fix or mitigate CVE-2023-54335?

Within 24 hours: Identify all affected systems and apply vendor patches immediately. Audit authentication configurations and rotate any potentially compromised credentials.

PHP CVE-2023-54335

CRITICAL

Missing Authentication for Critical Function (CWE-306)

2026-01-13 disclosure@vulncheck.com

PHP Authentication Bypass Extplorer

9.8

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

9.8 CRITICAL

AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

Analysis Generated

Mar 12, 2026 - 21:54 vuln.today

PoC Detected

Feb 03, 2026 - 19:25 vuln.today

Public exploit code

CVE Published

Jan 13, 2026 - 23:16 nvd

CRITICAL 9.8

DescriptionCVE.org

eXtplorer 2.1.14 contains an authentication bypass vulnerability that allows attackers to login without a password by manipulating the login request. Attackers can exploit this flaw to upload malicious PHP files and execute remote commands on the vulnerable file management system.

AnalysisAI

eXtplorer 2.1.14 has an authentication bypass that allows passwordless login. Combined with the file manager's upload capability, this achieves unauthenticated RCE. PoC available.

Technical ContextAI

The login request can be manipulated to bypass password verification (CWE-306). Once logged in, the file manager allows uploading PHP files that execute on the server.