{"id":"CVE-2018-8733","url":"https://www.cyber-defence.io/tools/cve/CVE-2018-8733","generatedAt":"2026-10-28T20:48:51.173Z","title":"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.","description":"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.","published":"2018-04-18T00:29:00.000Z","lastModified":"2026-06-17T02:05:19.000Z","status":"Modified","sourceIdentifier":"cve@mitre.org","cvss":{"version":"3.0","score":9.8,"severity":"CRITICAL","vector":"CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"},"cwe":["CWE-89"],"affected":["nagios/nagios xi"],"epss":{"score":0.26556,"percentile":0.98005,"date":"2026-10-27","history":[{"date":"2026-09-21","score":0.23507,"percentile":0.97738},{"date":"2026-09-22","score":0.27011,"percentile":0.97951}]},"kev":{"listed":false},"exploits":{"count":2,"verified":true,"firstPublished":"2018-04-30","source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[{"edbId":44969,"kind":"exploit","title":"Nagios XI 5.2.6-5.4.12 - Chained Remote Code Execution (Metasploit)","url":"https://www.exploit-db.com/exploits/44969","sourceUrl":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/linux/remote/44969.rb","file":"exploits/linux/remote/44969.rb","published":"2018-07-02","added":"2018-07-02","updated":"2018-07-02","author":"Metasploit","type":"remote","platform":"linux","port":80,"verified":true,"codes":["CVE-2018-8736","CVE-2018-8735","CVE-2018-8734","CVE-2018-8733"],"tags":"Remote","aliases":null,"applicationUrl":null,"screenshotUrl":null,"referenceUrl":"https://raw.githubusercontent.com/rapid7/metasploit-framework/fc3199259b72e20da222480e8cd9734511a50ab8/modules/exploits/linux/http/nagios_xi_chained_rce_2_electric_boogaloo.rb"},{"edbId":44560,"kind":"exploit","title":"Nagios XI 5.2.6 < 5.2.9 / 5.3 / 5.4 - Chained Remote Root","url":"https://www.exploit-db.com/exploits/44560","sourceUrl":"https://gitlab.com/exploit-database/exploitdb/-/blob/main/exploits/php/webapps/44560.py","file":"exploits/php/webapps/44560.py","published":"2018-04-30","added":"2018-04-30","updated":"2018-07-02","author":"Jared Arave","type":"webapps","platform":"php","port":null,"verified":true,"codes":["CVE-2018-8736","CVE-2018-8735","CVE-2018-8734","CVE-2018-8733"],"tags":"Remote","aliases":null,"applicationUrl":null,"screenshotUrl":null,"referenceUrl":"http://blog.redactedsec.net/exploits/2018/04/26/nagios.html"}]},"verdict":{"level":"urgent","text":"EPSS puts the probability of exploitation in the next 30 days at 26.6%, higher than 98% of all known CVEs. Patch or mitigate before the next change window."},"changes":[],"references":[{"url":"https://assets.nagios.com/downloads/nagiosxi/CHANGES-5.TXT","tags":["Release Notes","Vendor Advisory"],"source":"cve@mitre.org"},{"url":"https://blog.redactedsec.net/exploits/2018/04/26/nagios.html","tags":["Exploit","Technical Description","Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://gist.github.com/caleBot/f0a93b5a98574393e0139104eacc2d0f","tags":["Third Party Advisory"],"source":"cve@mitre.org"},{"url":"https://www.exploit-db.com/exploits/44560/","tags":["Exploit","Third Party Advisory","VDB Entry"],"source":"cve@mitre.org"},{"url":"https://www.exploit-db.com/exploits/44969/","tags":["Exploit","Third Party Advisory","VDB Entry"],"source":"cve@mitre.org"},{"url":"https://www.nagios.com/downloads/nagios-xi/change-log/","tags":["Release Notes","Vendor Advisory"],"source":"cve@mitre.org"},{"url":"https://assets.nagios.com/downloads/nagiosxi/CHANGES-5.TXT","tags":["Release Notes","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://blog.redactedsec.net/exploits/2018/04/26/nagios.html","tags":["Exploit","Technical Description","Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://gist.github.com/caleBot/f0a93b5a98574393e0139104eacc2d0f","tags":["Third Party Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.exploit-db.com/exploits/44560/","tags":["Exploit","Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.exploit-db.com/exploits/44969/","tags":["Exploit","Third Party Advisory","VDB Entry"],"source":"af854a3a-2127-422b-91ae-364da2661108"},{"url":"https://www.nagios.com/downloads/nagios-xi/change-log/","tags":["Release Notes","Vendor Advisory"],"source":"af854a3a-2127-422b-91ae-364da2661108"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2018-8733","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}