What is CVE-2023-32121?

CVE-2023-32121 is a high-severity vulnerability in Highfivery Zero Spam For WordPress, classified under SQL Injection. CVSS score: 7.6/10. Published 2023-11-03.

How severe is CVE-2023-32121?

High severity. CVSS v3 base score is 7.6 out of 10.

Is CVE-2023-32121 known to be exploited?

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

SQL Injection in Highfivery Zero Spam For WordPress

CVE-2023-32121

Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in Highfivery LLC Zero Spam for WordPress allows SQL Injection.This issue affects Zero Spam for WordPress: from n/a through 5.4.4.

Vulnerability class: SQL Injection

Published 2023-11-03 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.6 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:N/A:L.

EPSS exploit prediction

EPSS: 0.007 (52.6th percentile), scored 2026-10-05.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 53rd percentile — 52.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000

Affected products

Weakness classification (CWE)

CWE-89 — SQL Injection

Public proof-of-concept exploits

20142995/nuclei-templates

References

patchstack.com/database/vulnerability/zero-spam/wordpress-zero-spam-for-wordpre… (Third Party Advisory, vdb-entry)

Frequently asked questions

What is CVE-2023-32121?: CVE-2023-32121 is a high-severity vulnerability in Highfivery Zero Spam For WordPress, classified under SQL Injection. CVSS score: 7.6/10. Published 2023-11-03.
How severe is CVE-2023-32121?: High severity. CVSS v3 base score is 7.6 out of 10.
Is CVE-2023-32121 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.