A vulnerability, which was classified as critical, has been found in SourceCodester Online Tours & Travels Management System 1.0. Affected by this issue is some unknown functionality of the file admin/expense_report.php. The manipulation of the argument from_date leads to sql injection. Using CWE to declare the problem leads to CWE-89. The weakness was disclosed 01/27/2023. The advisory is available at github.com. This vulnerability is handled as CVE-2023-0533. The attack may be launched remotely. Technical details are available. Furthermore, there is an exploit available. The exploit has been disclosed to the public and may be used. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment. This vulnerability is assigned to T1505 by the MITRE ATT&CK project. It is declared as proof-of-concept. The exploit is available at github.com. As 0-day the estimated underground price was around $0-$5k. A possible mitigation has been published even before and not after the disclosure of the vulnerability.