What is CVE-2021-47693?

CVE-2021-47693 is a high-severity vulnerability in Nagios Nagios_xi, classified under SQL Injection. CVSS score: 8.8/10. Published 2025-10-30.

How severe is CVE-2021-47693?

High severity. CVSS v3 base score is 8.8 out of 10.

SQL Injection in Nagios Nagios_xi

CVE-2021-47693

The Core Config Manager (CCM) in Nagios XI versions prior to CCM 3.1.3 / Nagios XI 5.8.5 contains a SQL injection vulnerability in the search text handling. Unsanitized user-supplied input was incorporated into SQL queries used by configur…

Vulnerability class: SQL Injection

EPSS: 0.010 (59.3th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Nagios Nagios_xi
Nagios Xi — versions 0

Weakness classification (CWE)

CWE-89 — SQL Injection

References

disclosure@vulncheck.com (release-notes, Release Notes, patch)
disclosure@vulncheck.com (Third Party Advisory, third-party-advisory)

Frequently asked questions

What is CVE-2021-47693?: CVE-2021-47693 is a high-severity vulnerability in Nagios Nagios_xi, classified under SQL Injection. CVSS score: 8.8/10. Published 2025-10-30.
How severe is CVE-2021-47693?: High severity. CVSS v3 base score is 8.8 out of 10.