How severe is CVE-2023-45751?

CVE-2023-45751 has a CVSS 3.x base score of 9.1, rated critical severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2023-45751 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (43rd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-45751?

CVE-2023-45751 affects Posimyth Nexter Extension. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-45751?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.

When was CVE-2023-45751 published?

CVE-2023-45751 was published on 2023-12-29 and last updated on 2026-06-17.

CVE-2023-45751

CVE-2023-45751 is a critical-severity vulnerability in Posimyth Nexter Extension with a CVSS 3.x base score of 9.1. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-94.

Key facts

Severity: Critical (CVSS 3.x base score 9.1)
EPSS exploit prediction: 1% (43rd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-94
Affected product: Posimyth Nexter Extension
Published: 2023-12-29
Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is CVE-2023-45751?: 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.
How severe is CVE-2023-45751?: CVE-2023-45751 has a CVSS 3.x base score of 9.1, rated critical severity. It is exploitable over network with low attack complexity, requires high privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.
Is CVE-2023-45751 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (43rd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-45751?: CVE-2023-45751 affects Posimyth Nexter Extension. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-45751?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its critical severity, prioritise patching exposed systems.
When was CVE-2023-45751 published?: CVE-2023-45751 was published on 2023-12-29 and last updated on 2026-06-17.

References

https://patchstack.com/database/vulnerability/nexter-extension/wordpress-nexter-extension-plugin-2-0-3-remote-code-execution-rce-vulnerability?_s_id=cve

Affected products (1)

cpe:2.3:a:posimyth:nexter_extension:*:*:*:*:*:wordpress:*:*

More vulnerabilities in Posimyth Nexter Extension

CVE-2023-45750 — High (CVSS 7.1): Unauth. Reflected Cross-Site Scripting (XSS) vulnerability in POSIMYTH Nexter Extension plugin <= 2.0.3 versions.

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