How severe is CVE-2019-12347?

CVE-2019-12347 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-2019-12347 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 59% (99th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2019-12347?

CVE-2019-12347 affects Netgate Pfsense. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2019-12347?

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

When was CVE-2019-12347 published?

CVE-2019-12347 was published on 2019-05-29 and last updated on 2026-06-17.

CVE-2019-12347

CVE-2019-12347 is a medium-severity vulnerability in Netgate Pfsense with a CVSS 3.x base score of 6.1. Its EPSS exploit-prediction score of 59% 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 6.1)
CVSS v2: 4.3
EPSS exploit prediction: 59% (99th percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-79
Affected product: Netgate Pfsense
Published: 2019-05-29
Last modified: 2026-06-17

Description

In pfSense 2.4.4-p3, a stored XSS vulnerability occurs when attackers inject a payload into the Name or Description field via an acme_accountkeys_edit.php action. The vulnerability occurs due to input validation errors.

Frequently asked questions

What is CVE-2019-12347?: In pfSense 2.4.4-p3, a stored XSS vulnerability occurs when attackers inject a payload into the Name or Description field via an acme_accountkeys_edit.php action. The vulnerability occurs due to input validation errors.
How severe is CVE-2019-12347?: CVE-2019-12347 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-2019-12347 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 59% (99th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2019-12347?: CVE-2019-12347 affects Netgate Pfsense. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2019-12347?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2019-12347 published?: CVE-2019-12347 was published on 2019-05-29 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:netgate:pfsense:2.4.4:p3:*:*:*:*:*:*

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