CVE-2019-16914

Severity: medium (CVSS 6.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.0% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2019-09-26 · updated 2026-06-17
Weakness: CWE-79

Description

An XSS issue was discovered in pfSense through 2.4.4-p3. In services_captiveportal_mac.php, the username and delmac parameters are displayed without sanitization.

Affected products

Netgate pfSense: before 2.4.4; 2.4.4, 2.4.4-p1, 2.4.4-p2, 2.4.4-p3 — fixed in 2.4.4

How to fix

Upgrade to a fixed version: Netgate pfSense 2.4.4. Check the vendor advisory for mitigations.

References

https://github.com/pfsense/pfsense/commit/d31362b69d5d52dc196dc72f66e830cd1e6e9a4f
https://redmine.pfsense.org/issues/9609
https://www.seebug.org/vuldb/ssvid-98023
https://github.com/pfsense/pfsense/commit/d31362b69d5d52dc196dc72f66e830cd1e6e9a4f
https://redmine.pfsense.org/issues/9609
https://www.seebug.org/vuldb/ssvid-98023

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