Which products and versions are affected by CVE-2019-12347?

Affected: Pfsense (Netgate) versions 2.4.4-p3. The full list is in the CVE brief.

Is CVE-2019-12347 being exploited in the wild?

It is not listed in any known-exploited vulnerabilities catalog.

Is CVE-2019-12347 in the CISA KEV catalog?

No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.

Is there a public exploit for CVE-2019-12347?

Public exploit code is available.

Is there a fix for CVE-2019-12347?

No fixed version is listed yet; check the vendor advisory for mitigations.

How urgently should CVE-2019-12347 be patched?

Brandefense priority: patch immediately, because it is very likely to be exploited soon.

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Vulnerability Intelligence

CVE-2019-12347

MediumPublic exploit

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.

Published May 29, 2019 · Updated Jul 8, 2026

Key Facts

Patch immediately

CVE-2019-12347 is a medium-severity vulnerability (CVSS 6.1 v3.1) affecting Pfsense (Netgate).
It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
EPSS estimates a 59% probability of exploitation in the next 30 days.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.

CVSS v3.1

6.1

CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

EPSS (30-day exploit likelihood)

59%

Higher than 99.0% of all scored CVEs

Exploited in the wild

No known

Not in a known-exploited catalog

Public exploit code

Available

Proof-of-concept or weaponized module

Get the full CVE-2019-12347 brief as a PDF

Every affected product and fixed release, exploitation status and a first 24 hours response checklist, emailed within minutes.

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.

Affected Products

1 affected entries in total

Product	Affected versions	Fixed in
PfsenseNetgate	2.4.4-p3	n/a

Timeline

Publicly disclosed
May 29, 2019
Last updated
Jul 8, 2026

Weakness Type

CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')

References

1 more references in the full CVE brief

FAQ

Common Questions.

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.
Affected: Pfsense (Netgate) versions 2.4.4-p3. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
No fixed version is listed yet; check the vendor advisory for mitigations.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.

Is CVE-2019-12347 Running On Your Attack Surface?

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