CVE-2018-19410
Paessler PRTG Network Monitor Local File Inclusion Vulnerability
- Critical 9.8
- Exploited: added to CISA KEV 4 Feb 2025
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).
Key facts
- Published
- 21 Nov 2018
- Last changed
- 21 Oct 2025
- Assigned by
- mitre
- KEV added
- 4 Feb 2025
- KEV fix due
- 25 Feb 2025
- EPSS
- 97.939% likely to be exploited in the next 30 days, higher than 99.909% of CVEs (scores for 15 Nov 2026)
- SSVC (CISA)
- Exploitation: active; Automatable: yes; Technical impact: total
Severity scores
Each score is shown as its source gave it. They are not averaged or merged.
- 9.8CVSS 3.1, Criticalfrom CISA (ADP container)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
What to do
- Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.CISA KEV required action
Historical context and remediation
This reference retains the original CVE publication date. A recent record update does not mean a new attack occurred.
No separately sourced impact summary is available on this page yet. Consult the description, version data and dated exploitation evidence.
Version statuses below come from the CNA. An “unaffected” version is not necessarily a currently supported release or proof of a patch date. EPSS is a dated risk estimate, not a count of historical attacks.
Affected products
| Vendor | Product | Versions |
|---|---|---|
| n/a | n/a |
|
Timeline
- 21 Nov 2018 Published
- 4 Feb 2025 CVE-2018-19410 added to CISA KEV
- 4 Feb 2025 Added to the CISA KEV catalogue