CVE-2021-4336: 
NixOS vulnerability analysis and mitigation

A critical vulnerability (CVE-2021-4336) was discovered in ITRS Group monitor-ninja versions up to 2021.11.1. The vulnerability affects the file modules/reports/models/scheduled_reports.php and has been classified as an SQL injection issue. The vulnerability was disclosed and later addressed in version 2021.11.30 through patch 6da9080faec9bca1ca5342386c0421dca0a6c0cc (NVD CVE).

The vulnerability exists in the scheduled_reports.php module where certain variables used in SQL statements were not properly escaped, allowing for potential SQL injection attacks. The issue received a CVSS v3.1 base score of 9.8 (CRITICAL), indicating the highest severity level. The vulnerability allows manipulation of SQL queries through unescaped input parameters (GitHub Commit).

If exploited, this SQL injection vulnerability could allow an attacker to manipulate database queries, potentially leading to unauthorized access to data, modification of database contents, or execution of malicious database operations (NVD CVE).

The recommended mitigation is to upgrade to ITRS Group monitor-ninja version 2021.11.30 or later, which includes the security patch that properly escapes SQL variables. The fix was implemented through commit 6da9080faec9bca1ca5342386c0421dca0a6c0cc, which adds proper SQL escaping for all affected variables (GitHub Release).