{"id":"CVE-2018-19410","published":"2018-11-21T16:29:00Z","modified":"2026-06-17T01:49:15Z","title":"Paessler PRTG Network Monitor Local File Inclusion Vulnerability","vendor":"Paessler","product":"PRTG Network Monitor","tier":"core","eol":null,"description":{"text":"PRTG Network Monitor before 18.2.40.1683 allows remote unauthenticated attackers to create users with read-write privileges (including administrator). A remote unauthenticated user can craft an HTTP request and override attributes of the 'include' directive in /public/login.htm and perform a Local File Inclusion attack, by including /api/addusers and executing it. By providing the 'id' and 'users' parameters, an unauthenticated attacker can create a user with read-write privileges (including administrator).","provenance":"source","from":"NVD"},"summary":{"text":"Paessler PRTG Network Monitor, before version 18.2.40.1683, contains a flaw in its login page handling of the 'include' directive in /public/login.htm that enables a Local File Inclusion attack. A remote attacker with no authentication and no user interaction can send a crafted HTTP request that includes /api/addusers and supplies the 'id' and 'users' parameters, creating a user with read-write privileges, including administrator.","provenance":"ai","model":"claude-haiku-5-5","generatedAt":"2026-10-23T07:11:50Z"},"cvss":{"score":9.8,"severity":"CRITICAL","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","provenance":"source","from":"NVD"},"epss":{"score":0.97939,"percentile":0.99909,"date":"2026-10-30","provenance":"source"},"kev":{"dateAdded":"2025-02-04","dueDate":"2025-02-25","ransomware":false,"requiredAction":"Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.","notes":"https://www.paessler.com/prtg/history/prtg-18#18.2.41.1652 ; https://nvd.nist.gov/vuln/detail/CVE-2018-19410","provenance":"source"},"vulncheckKev":{"dateAdded":"2025-02-04","exploitedFirstSeen":"2025-02-04","ransomware":false,"evidence":[{"url":"https://www.cisa.gov/sites/default/files/feeds/known_exploited_vulnerabilities.json","date":"2025-02-04"},{"url":"https://www.fortiguard.com/encyclopedia/ips/57265","date":"2025-02-05"},{"url":"https://app.crowdsec.net/cti/cve-explorer/CVE-2018-19410","date":"2025-06-08"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2025-11-26&host_type=src&vulnerability=cve-2018-19410","date":"2025-11-26"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2025-11-27&host_type=src&vulnerability=cve-2018-19410","date":"2025-11-27"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2025-11-28&host_type=src&vulnerability=cve-2018-19410","date":"2025-11-28"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2025-11-29&host_type=src&vulnerability=cve-2018-19410","date":"2025-11-29"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2025-11-30&host_type=src&vulnerability=cve-2018-19410","date":"2025-11-30"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2025-12-01&host_type=src&vulnerability=cve-2018-19410","date":"2025-12-01"},{"url":"https://dashboard.shadowserver.org/statistics/honeypot/vulnerability/map/?day=2025-12-02&host_type=src&vulnerability=cve-2018-19410","date":"2025-12-02"}],"evidenceTotal":253,"provenance":"source"},"exploited":true,"otx":{"pulseCount":50,"pulses":[{"name":"Actively_Exploited_Kev 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2026","url":"https://otx.alienvault.com/pulse/6ad62f63c24a405a3423cc13","created":"2026-10-19"},{"name":"Actively_Exploited_Kev | Oct 19, 2026","url":"https://otx.alienvault.com/pulse/6ad4dda174e5797d0bd238b7","created":"2026-10-18"},{"name":"Actively_Exploited_Kev | Oct 18, 2026","url":"https://otx.alienvault.com/pulse/6ad38c22e1848f8189d1c121","created":"2026-10-17"}],"provenance":"machine"},"cwes":[],"references":[{"url":"https://www.ptsecurity.com/ww-en/analytics/threatscape/pt-2018-24/","tags":["Third Party Advisory"]},{"url":"https://www.ptsecurity.com/ww-en/analytics/threatscape/pt-2018-24/","tags":["Third Party Advisory"]},{"url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-19410","tags":["US Government Resource"]}],"techniques":[{"id":"T1190","name":"Exploit Public-Facing Application","tactics":["initial-access"],"provenance":"ai","basis":"ai-mapping","bases":["ai-mapping"],"basisDetail":"claude-haiku-5-5: Unauthenticated HTTP request against public-facing web application","mappingType":"exploitation_technique","evidence":[{"from":"description","quote":"A remote unauthenticated user can craft an HTTP request","start":151,"end":206}],"model":"claude-haiku-5-5","confidence":"medium","confidenceNote":"AI-mapped from the description (quote-validated, not expert-reviewed)"},{"id":"T1136","name":"Create Account","tactics":["persistence"],"provenance":"ai","basis":"ai-mapping","bases":["ai-mapping"],"basisDetail":"claude-haiku-5-5: Creates new administrator accounts on the system","mappingType":"primary_impact","evidence":[{"from":"description","quote":"allows remote unauthenticated attackers to create users with read-write privileges","start":41,"end":123}],"model":"claude-haiku-5-5","confidence":"medium","confidenceNote":"AI-mapped from the description (quote-validated, not expert-reviewed)"}],"reports":[],"affected":[],"advisories":[],"euvd":{"id":"EUVD-2018-11103","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2018-11103","exploited":true,"exploitedSince":"2025-02-04","provenance":"source"},"exploits":[],"exploitSources":{"pocGithub":{"count":1,"skipped":0,"earliest":"2024-01-25","earliestUrl":"https://github.com/himash/CVE-2018-19410-POC","repos":[{"name":"himash/CVE-2018-19410-POC","url":"https://github.com/himash/CVE-2018-19410-POC","stars":3,"created":"2024-01-25"}]},"nuclei":[{"id":"CVE-2018-19410","name":"PRTG Network Monitor - Local File Inclusion","severity":"critical","path":"http/cves/2018/CVE-2018-19410.yaml","url":"https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2018/CVE-2018-19410.yaml"}],"first":{"date":"2024-01-25","source":"PoC-in-GitHub","url":"https://github.com/himash/CVE-2018-19410-POC"},"provenance":"source"},"exploitRefs":[],"flow":[{"stage":"exploitation","techniques":["T1190"],"provenance":"ai"},{"stage":"primary","techniques":["T1136"],"provenance":"ai"}],"timeline":[{"date":"2018-11-21","kind":"published","label":"Published (NVD)","url":"https://nvd.nist.gov/vuln/detail/CVE-2018-19410","provenance":"source"},{"date":"2024-01-25","kind":"exploit-public","label":"First public exploit: PoC-in-GitHub","url":"https://github.com/himash/CVE-2018-19410-POC","provenance":"source"},{"date":"2025-02-04","kind":"exploited-reported","label":"Exploitation first reported (VulnCheck KEV 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