What is the CVSS score of CVE-2023-5311?

CVE-2023-5311 has a CVSS 3.1 base score of 8.8 (High). CVSS vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H. EPSS exploitation probability: 6.6%.

Is there a public PoC exploit available for CVE-2023-5311?

Yes, a public proof-of-concept exploit is available for CVE-2023-5311. Prioritise patching immediately. EPSS: 6.6%.

Is there a patch available for CVE-2023-5311?

Yes, a patch is available for CVE-2023-5311. Update the affected software to the latest version immediately.

Wp Extra CVE-2023-5311

HIGH

Missing Authorization (CWE-862)

2023-10-25 security@wordfence.com

Authentication Bypass RCE WordPress Wp Extra

8.8

CVSS 3.1 · NVD

Severity by source

NVD PRIMARY

8.8 HIGH

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

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

High

Availability

High

Lifecycle Timeline

Patch released

Apr 08, 2026 - 18:22 nvd

Patch available

PoC Detected

Apr 08, 2026 - 18:18 vuln.today

Public exploit code

CVE Published

Oct 25, 2023 - 18:17 nvd

HIGH 8.8

DescriptionCVE.org

The WP EXtra plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the register() function in versions up to, and including, 6.2. This makes it possible for authenticated attackers, with subscriber-level permissions and above, to modify the contents of the .htaccess files located in a site's root directory or /wp-content and /wp-includes folders and achieve remote code execution. CVE-2023-46623 appears to be a duplicate of this issue.

AnalysisAI

Technical ContextAI

This vulnerability is classified as Missing Authorization (CWE-862), which allows attackers to access resources or perform actions without proper authorization checks. The WP EXtra plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the register() function in versions up to, and including, 6.2. This makes it possible for authenticated attackers, with subscriber-level permissions and above, to modify the contents of the .htaccess files located in a site's root directory or /wp-content and /wp-includes folders and achieve remote code execution. CVE-2023-46623 appears to be a duplicate of this issue. Affected products include: Wpvnteam Wp Extra.

RemediationAI

A vendor patch is available. Apply the latest security update as soon as possible. Implement role-based access control, validate authorization on every request server-side, apply principle of least privilege.