How severe is CVE-2023-51630?

CVE-2023-51630 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2023-51630 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (75th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-51630?

CVE-2023-51630 affects Paessler Prtg Network Monitor. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-51630?

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

Does CVE-2023-51630 have an EU (EUVD) identifier?

Yes. CVE-2023-51630 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-56342.

When was CVE-2023-51630 published?

CVE-2023-51630 was published on 2024-02-08 and last updated on 2026-06-17.

CVE-2023-51630

CVE-2023-51630 is a medium-severity vulnerability in Paessler Prtg Network Monitor with a CVSS 3.x base score of 6.1. 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 6.1)
EPSS exploit prediction: 2% (75th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2023-56342
Weakness: CWE-79
Affected product: Paessler Prtg Network Monitor
Published: 2024-02-08
Last modified: 2026-06-17

Description

Paessler PRTG Network Monitor Cross-Site Scripting Authentication Bypass Vulnerability. This vulnerability allows remote attackers to bypass authentication on affected installations of Paessler PRTG Network Monitor. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the web console. The issue results from the lack of proper validation of user-supplied data, which can lead to the injection of an arbitrary script. An attacker can leverage this vulnerability to bypass authentication on the system. . Was ZDI-CAN-21182.

Frequently asked questions

What is CVE-2023-51630?: Paessler PRTG Network Monitor Cross-Site Scripting Authentication Bypass Vulnerability. This vulnerability allows remote attackers to bypass authentication on affected installations of Paessler PRTG Network Monitor. User interaction is required to exploit this vulnerability in that the target must visit a malicious page or open a malicious file. The specific flaw exists within the web console. The issue results from the lack of proper validation of user-supplied data, which can lead to the injection of an arbitrary script. An attacker can leverage this vulnerability to bypass authentication on the system. . Was ZDI-CAN-21182.
How severe is CVE-2023-51630?: CVE-2023-51630 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2023-51630 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (75th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-51630?: CVE-2023-51630 affects Paessler Prtg Network Monitor. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-51630?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2023-51630 have an EU (EUVD) identifier?: Yes. CVE-2023-51630 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2023-56342.
When was CVE-2023-51630 published?: CVE-2023-51630 was published on 2024-02-08 and last updated on 2026-06-17.

References

https://www.zerodayinitiative.com/advisories/ZDI-24-073/

Affected products (1)

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

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