A vulnerability, which was classified as critical, has been found in SourceCodester Doctors Appointment System 1.0. This issue affects some unknown processing of the file /admin/edit-doc.php. The manipulation of the argument oldmail leads to sql injection. The CWE definition for the vulnerability is CWE-89. The weakness was published 02/27/2023. The advisory is shared at github.com. The identification of this vulnerability is CVE-2023-1061. The attack may be initiated remotely. Technical details are available. Furthermore, there is an exploit available. The exploit has been disclosed to the public and may be used. The price for an exploit might be around USD $0-$5k at the moment. MITRE ATT&CK project uses the attack technique T1505 for this issue. It is declared as proof-of-concept. The exploit is available at github.com. We expect the 0-day to have been worth approximately $0-$5k. A possible mitigation has been published even before and not after the disclosure of the vulnerability.