What is CVE-2017-15009?

CVE-2017-15009 is a medium-severity vulnerability in Paessler Prtg Network Monitor, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2017-10-04.

How severe is CVE-2017-15009?

Medium severity. CVSS v3 base score is 6.1 out of 10.

Is CVE-2017-15009 known to be exploited?

1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

XSS in Paessler Prtg Network Monitor

CVE-2017-15009

PRTG Network Monitor version 17.3.33.2830 is vulnerable to reflected Cross-Site Scripting on error.htm (the error page), via the errormsg parameter.

Vulnerability class: XSS (Cross-Site Scripting)

Published 2017-10-04 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.1 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N.

EPSS exploit prediction

EPSS: 0.007 (51.4th percentile), scored 2026-10-25.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 51st percentile — 51.4% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000

Affected products

Paessler Prtg Network Monitor — versions 17.3.33.2830

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

Public proof-of-concept exploits

ARPSyndicate/cvemon

References

medium.com/stolabs/security-issue-on-prtg-network-manager-ada65b45d37b (Technical Description, Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2017-15009?: CVE-2017-15009 is a medium-severity vulnerability in Paessler Prtg Network Monitor, classified under Cross-site Scripting. CVSS score: 6.1/10. Published 2017-10-04.
How severe is CVE-2017-15009?: Medium severity. CVSS v3 base score is 6.1 out of 10.
Is CVE-2017-15009 known to be exploited?: 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.