How severe is CVE-2023-4347?

CVE-2023-4347 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-2023-4347 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 67% (99th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-4347?

CVE-2023-4347 affects Librenms. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-4347?

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

When was CVE-2023-4347 published?

CVE-2023-4347 was published on 2023-08-15 and last updated on 2026-06-17.

CVE-2023-4347

CVE-2023-4347 is a medium-severity vulnerability in Librenms with a CVSS 3.x base score of 5.4. Its EPSS exploit-prediction score of 67% places it in the 99th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-79.

Key facts

Severity: Medium (CVSS 3.x base score 5.4)
EPSS exploit prediction: 67% (99th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Librenms
Published: 2023-08-15
Last modified: 2026-06-17

Description

Cross-site Scripting (XSS) - Reflected in GitHub repository librenms/librenms prior to 23.8.0.

Frequently asked questions

What is CVE-2023-4347?: Cross-site Scripting (XSS) - Reflected in GitHub repository librenms/librenms prior to 23.8.0.
How severe is CVE-2023-4347?: CVE-2023-4347 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-2023-4347 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 67% (99th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-4347?: CVE-2023-4347 affects Librenms. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-4347?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-4347 published?: CVE-2023-4347 was published on 2023-08-15 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:librenms:librenms:*:*:*:*:*:*:*:*

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