How severe is CVE-2020-14073?

CVE-2020-14073 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2020-14073 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (85th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2020-14073?

CVE-2020-14073 affects Paessler Prtg Network Monitor. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2020-14073?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2020-14073 published?

CVE-2020-14073 was published on 2020-06-23 and last updated on 2026-06-17.

CVE-2020-14073

CVE-2020-14073 is a medium-severity vulnerability in Paessler Prtg Network Monitor with a CVSS 3.x base score of 5.4. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-79.

Key facts

Severity: Medium (CVSS 3.x base score 5.4)
CVSS v2: 3.5
EPSS exploit prediction: 3% (85th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Paessler Prtg Network Monitor
Published: 2020-06-23
Last modified: 2026-06-17

Description

XSS exists in PRTG Network Monitor 20.1.56.1574 via crafted map properties. An attacker with Read/Write privileges can create a map, and then use the Map Designer Properties screen to insert JavaScript code. This can be exploited against any user with View Maps or Edit Maps access.

Frequently asked questions

What is CVE-2020-14073?: XSS exists in PRTG Network Monitor 20.1.56.1574 via crafted map properties. An attacker with Read/Write privileges can create a map, and then use the Map Designer Properties screen to insert JavaScript code. This can be exploited against any user with View Maps or Edit Maps access.
How severe is CVE-2020-14073?: CVE-2020-14073 has a CVSS 3.x base score of 5.4, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2020-14073 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 3% (85th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2020-14073?: CVE-2020-14073 affects Paessler Prtg Network Monitor. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2020-14073?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2020-14073 published?: CVE-2020-14073 was published on 2020-06-23 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:paessler:prtg_network_monitor:20.1.56.1574:*:*:*:*:*:*:*

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