CVE-2021-47693 Nagios XI < 5.8.5 Core Config Manager (CCM) SQL Injection via Improper Escaping in Search Text
Authenticated attackers can inject SQL into Nagios XI Core Config Manager search fields to read or modify configuration and application data.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2021-47693?
CVE-2021-47693 is a high-severity SQL injection vulnerability in Nagios Nagios Xi, published on 30 Oct 2025. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
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 configuration object editors, allowing authenticated users to inject SQL fragments. Successful exploitation could lead to unauthorized disclosure or modification of configuration and application data, and in some environments could allow further compromise of the application or backend database.
Weakness: CWE-89
Which versions are affected by CVE-2021-47693?
It affects 1 product.
Products include Nagios Nagios Xi.
How do I fix CVE-2021-47693?
No fix has been published for CVE-2021-47693 yet. Limit exposure of the affected software until one is available.
Use parameterised queries everywhere and never build SQL by joining strings. Upgrade affected software first; a web application firewall only buys time. More about SQL injection.
Is CVE-2021-47693 being exploited?
There is no known exploitation of CVE-2021-47693 in the wild and no public exploit code.
Other vulnerabilities in Nagios Nagios Xi
Sources
Also known as GHSA-cgvq-7r44-r2pr.