An issue was discovered in pfSense through 2.4.4-p3. widgets/widgets/picture.widget.php uses the widgetkey parameter directly without sanitization (e.g., a basename call) for a pathname to file_get_contents or file_put_contents.
https://www.seebug.org/vuldb/ssvid-98024
https://redmine.pfsense.org/issues/9610
https://github.com/pfsense/pfsense/commit/2c544ac61ce98f716d50b8e5961d7dfba66804b5
Source: Mitre, NVD
Published: 2019-09-26
Updated: 2021-07-21
Base Score: 7.5
Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P
Severity: High
Base Score: 9.8
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Severity: Critical
EPSS: 0.01406