CVE-2018-8733

9.8 criticalEPSS 27%

Authentication bypass vulnerability in the core config manager in Nagios XI 5.2.x through 5.4.x before 5.4.13 allows an unauthenticated attacker to make configuration changes and leverage an authenticated SQL injection vulnerability.

Severity

CVSS 3.0

9.8 critical

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS: 27% chance of exploitation in the next 30 days; higher than 98% of CVEs (scores of 2026-10-31)
CWE: CWE-89
Published: 2018-04-18
Modified: 2026-06-17
Record from: the NVD, synced 2026-10-19

Affected

nagios:nagios_xi

References

https://assets.nagios.com/downloads/nagiosxi/CHANGES-5.TXT
https://blog.redactedsec.net/exploits/2018/04/26/nagios.html
https://gist.github.com/caleBot/f0a93b5a98574393e0139104eacc2d0f
https://www.exploit-db.com/exploits/44560/
https://www.exploit-db.com/exploits/44969/

Check your stack JSON