CVE-2018-19410
Paessler PRTG Network Monitor Local File Inclusion Vulnerability is confirmed as actively exploited and is listed in the CISA KEV catalog.
Required action
Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.
CISA notes
https://www.paessler.com/prtg/history/prtg-18#18.2.41.1652 ; https://nvd.nist.gov/vuln/detail/CVE-2018-19410
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).
Severity
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HExploitation Context
as of October 13, 2026- CISA added CVE-2018-19410 to the KEV catalog 2,267 days after its CVE record was published. The median for entries added in 2025 is 26 days.
- It is one of 2 Paessler entries in the CISA KEV catalog, and one of 2 added in 2025.
- Its current EPSS score (97.9%) is higher than that of 84% of CISA KEV entries.
Affected Products
| Vendor | Product | Affected versions |
|---|---|---|
| - | - | n/a |
References
1 LinksRecord Details
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