What is CVE-2023-45657?

CVE-2023-45657 is a high-severity vulnerability in Posimyth Nexter, classified under SQL Injection. CVSS score: 8.5/10. Published 2023-11-06.

How severe is CVE-2023-45657?

High severity. CVSS v3 base score is 8.5 out of 10.

Is CVE-2023-45657 known to be exploited?

4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

SQL Injection in Posimyth Nexter

CVE-2023-45657

Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in POSIMYTH Nexter allows SQL Injection.This issue affects Nexter: from n/a through 2.0.3.

Vulnerability class: SQL Injection

Published 2023-11-06 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 8.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:L.

EPSS exploit prediction

EPSS: 0.013 (69.0th percentile), scored 2026-09-29.

Low probability of exploitation in the next 30 days, but still tracked. 69th percentile — 69.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.013 · newest: 0.013 · change: 0.000

Affected products

Posimyth Nexter

Weakness classification (CWE)

CWE-89 — SQL Injection

Public proof-of-concept exploits

References

patchstack.com/database/vulnerability/nexter/wordpress-nexter-theme-2-0-3-sql-i… (Third Party Advisory, vdb-entry)

Frequently asked questions

What is CVE-2023-45657?: CVE-2023-45657 is a high-severity vulnerability in Posimyth Nexter, classified under SQL Injection. CVSS score: 8.5/10. Published 2023-11-06.
How severe is CVE-2023-45657?: High severity. CVSS v3 base score is 8.5 out of 10.
Is CVE-2023-45657 known to be exploited?: 4 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.