How severe is CVE-2023-42327?

CVE-2023-42327 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-2023-42327 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 55% (99th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-42327?

CVE-2023-42327 affects Netgate Pfsense. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-42327?

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

When was CVE-2023-42327 published?

CVE-2023-42327 was published on 2023-11-14 and last updated on 2026-06-17.

CVE-2023-42327

CVE-2023-42327 is a medium-severity vulnerability in Netgate Pfsense with a CVSS 3.x base score of 5.4. Its EPSS exploit-prediction score of 55% 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: 55% (99th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Netgate Pfsense
Published: 2023-11-14
Last modified: 2026-06-17

Description

Cross Site Scripting (XSS) vulnerability in Netgate pfSense v.2.7.0 allows a remote attacker to gain privileges via a crafted URL to the getserviceproviders.php page.

Frequently asked questions

What is CVE-2023-42327?: Cross Site Scripting (XSS) vulnerability in Netgate pfSense v.2.7.0 allows a remote attacker to gain privileges via a crafted URL to the getserviceproviders.php page.
How severe is CVE-2023-42327?: CVE-2023-42327 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-2023-42327 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 55% (99th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-42327?: CVE-2023-42327 affects Netgate Pfsense. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-42327?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2023-42327 published?: CVE-2023-42327 was published on 2023-11-14 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:netgate:pfsense:2.7.0:*:*:*:*:*:*:*

More vulnerabilities in Netgate Pfsense

CVE-2019-16915 — Critical (CVSS 9.8): An issue was discovered in pfSense through 2.4.4-p3. widgets/widgets/picture.widget.php uses the widgetkey parameter…
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CVE-2020-21487 — Critical (CVSS 9.6): Cross Site Scripting vulnerability found in Netgate pfSense 2.4.4 and ACME package v.0.6.3 allows attackers to execute…
CVE-2023-48123 — High (CVSS 8.8): An issue in Netgate pfSense Plus v.23.05.1 and before and pfSense CE v.2.7.0 allows a remote attacker to execute…
CVE-2023-42326 — High (CVSS 8.8): An issue in Netgate pfSense v.2.7.0 allows a remote attacker to execute arbitrary code via a crafted request to the…
CVE-2023-27253 — High (CVSS 8.8): A command injection vulnerability in the function restore_rrddata() of Netgate pfSense v2.7.0 allows authenticated…

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