CVE-2019-19374: Squiz Matrix

Critical severity, CVSS 9.1. EPSS: 3.4% chance of exploitation in the next 30 days.

An issue was discovered in core/assets/form/form_question_types/form_question_type_file_upload/form_question_type_file_upload.inc in Squiz Matrix CMS 5.5.0 prior to 5.5.0.3, 5.5.1 prior to 5.5.1.8, 5.5.2 prior to 5.5.2.4, and 5.5.3 prior to 5.5.3.3 where a user can delete arbitrary files from the server during interaction with the File Upload field type, when a custom form exists. (This is related to an information disclosure issue within the File Upload field type that allows users to view the full path to uploaded files, including the product's web root directory.)

Affected products

• Squiz Matrix: from 5.5.0.0, before 5.5.0.3 (fixed in 5.5.0.3); from 5.5.1.0, before 5.5.1.8 (fixed in 5.5.1.8); from 5.5.2.0, before 5.5.2.4 (fixed in 5.5.2.4); from 5.5.3.0, before 5.5.3.3 (fixed in 5.5.3.3)

Published 2019-12-11. Last modified 2026-06-17.