Pfsense
CVE-2019-12347
MEDIUM
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A05:2025 - Injection
ASVS 5.0
V1 - Encoding and Sanitization Output encoding, context-aware escaping
MITRE ATT&CK
2 techniques across 2 tactics: Initial Access, Execution The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
| Impact | CVSS score of 6.1 (MEDIUM). Attack characteristics: network attack vector, low complexity, no privileges required, user interaction required. Public proof-of-concept exploit code is available. |
| Exploit ScenarioDerived | A remote attacker could inject malicious scripts into web pages viewed by other users by sending crafted requests to the affected application. No authentication is required to exploit this vulnerability. |
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Alert meAnalysisAI
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. Rated medium severity (CVSS 6.1), this vulnerability is remotely exploitable, no authentication required, low attack complexity. Public exploit code available.
RemediationAI
A vendor patch is available. Apply the latest security update as soon as possible. Sanitize all user input, use Content-Security-Policy headers, encode output contextually (HTML, JS, URL). Use frameworks with built-in XSS protection.
Affects your stack
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Checking this CVE against your own stacks and servers is part of the Basic plan and up.
Technical ContextAI · show details
This vulnerability is classified as Cross-Site Scripting (XSS) (CWE-79), which allows attackers to inject malicious scripts into web pages viewed by other users. 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 include: Netgate Pfsense.
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- Exploit and PoC references, threat intelligence from 22 sources
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Severity by source
AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
DescriptionNVD
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.
Threat Intelligence Overview
NVD
CVE.org
EPSS
Exploit-DB
GitHub
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Cross-Site Scripting occurs when an application accepts untrusted data and sends it to a web browser without proper validation or encoding.
Affected Products (CPE)NVD
Cross-site request forgery (CSRF) vulnerability in system_firmware_restorefullbackup.php in the WebGUI in pfSense before
A command injection vulnerability in the function restore_rrddata() of Netgate pfSense v2.7.0 allows authenticated attac
Improper restriction of excessive authentication attempts in the SSHGuard component of Netgate pfSense Plus software v22
pfSense pfBlockerNG through 2.1.4_27 allows remote attackers to execute arbitrary OS commands as root via the HTTP Host
diag_command.php in pfSense 2.4.4-p3 allows CSRF via the txtCommand or txtRecallBuffer field, as demonstrated by executi
pfSense through 2.3.4 through 2.4.4-p3 allows Remote Code Injection via a methodCall XML document with a pfsense.exec_ph
An exploitable command injection vulnerability exists in the way Netgate pfSense CE 2.4.4-RELEASE processes the paramete
An exploitable command injection vulnerability exists in the way Netgate pfSense CE 2.4.4-RELEASE processes the paramete
An exploitable command injection vulnerability exists in the way Netgate pfSense CE 2.4.4-RELEASE processes the paramete
pfSense before 2.1.4 allows remote authenticated users to execute arbitrary commands via (1) the hostname value to diag_
pfSense v2.5.2 was discovered to contain a cross-site scripting (XSS) vulnerability in the browser.php component. Rated
pfSense 2.5.0 allows XSS via the services_wol_edit.php Description field. Rated medium severity (CVSS 6.1), this vulnera