CVE-2018-19410
Paessler PRTG Network Monitor Local File Inclusion Vulnerability
Does this matter?
Known to be exploited in the wild (CISA KEV, CISA remediation deadline 25 February 2025). Treat as an emergency change: patch or isolate now, then hunt for prior compromise.
Description
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).
- CVSS 3.1
- 9.8 CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 97.94% probability · 100th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Listed 4 February 2025 · due 25 February 2025
- Affected
- paessler/prtg network monitor
- Source
- cve@mitre.org
EPSS 97.9% since 27 October 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
CISA notes
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable. https://www.paessler.com/prtg/history/prtg-18#18.2.41.1652 ; https://nvd.nist.gov/vuln/detail/CVE-2018-19410
References
- https://www.ptsecurity.com/ww-en/analytics/threatscape/pt-2018-24/Third Party Advisory
- https://www.ptsecurity.com/ww-en/analytics/threatscape/pt-2018-24/Third Party Advisory
- https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-19410US Government Resource
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.