CVE-2023-45751 CRITICAL

CVE-2023-45751: WordPress Nexter Extension Plugin <= 2.0.3 is vulnerable to Remote Code Execution (RCE)

Vendor Posimyth

Product Nexter Extension

Weakness CWE-94 · Code injection

Published December 29, 2023

Last update April 28, 2026

View on NVD All CVEs

CVSS base score

9.1/10

Attack vector Network

Attack complexity Low

Privileges required High

User interaction None

Confidentiality High

Integrity High

CVSS vector

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

What the vulnerability does

01Description

Improper Control of Generation of Code ('Code Injection') vulnerability in POSIMYTH Nexter Extension.This issue affects Nexter Extension: from n/a through 2.0.3.

Explanation of Vulnerability in Simple Terms

02Summary

The Nexter Extension for POSIMYTH contains a code injection vulnerability in versions up to 2.0.3. An authenticated administrator can inject and execute arbitrary code on the site. The vulnerability requires high-level privileges and does not require user interaction. Impact extends beyond the vulnerable component, affecting confidentiality, integrity, and availability.

What an attacker can do

03Attacker Capabilities

Run arbitrary code on the site with full system access.

Potential impact on your site

04Site Impact

A compromised admin account can execute code, steal data, modify content, or take the site offline.

Conditions required to exploit

05Prerequisites

Attacker must have administrator-level access to the affected extension.

Key dates

06Disclosure timeline

December 29, 2023 CVE published

April 28, 2026 Record updated

External resources

07References

NVD — National Vulnerability Database https://nvd.nist.gov/vuln/detail/CVE-2023-45751 CWE — Common Weakness Enumeration https://cwe.mitre.org/data/definitions/94.html AskarLabs — CWE-94 write-up Code Injection

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