CVE-2023-1036
CWE-79Published: February 26, 2023· Updated: Jun 17, 2026
Official Description
A vulnerability was found in SourceCodester Dental Clinic Appointment Reservation System 1.0. It has been declared as problematic. This vulnerability affects unknown code of the file /APR/signup.php of the component POST Parameter Handler. The manipulation of the argument firstname leads to cross site scripting. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used. VDB-221794 is the identifier assigned to this vulnerability.
Technical Analysis
CVE-2023-1036 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.
Exploitation does not require any privileges, though user interaction (Required) is needed, which slightly reduces the risk of mass automated attacks.
The vulnerability has a "Changed" scope, meaning successful exploitation can impact components beyond the vulnerable component itself — such as the host operating system or adjacent services.
From a weakness classification perspective (CWE-79): Cross-site scripting (XSS) vulnerabilities allow attackers to inject malicious scripts into web pages viewed by other users.
CVSS v3.1 Vector Breakdown
Affected Vendors & Products
Exploit & PoC Resources
Official Patches & Advisories
All References (6)
Quick Facts
Related CVEs (CWE-79)
Recommended Actions
- →Apply vendor patches immediately
- →Monitor CVE-2023-1036 in threat intel feeds
- →Review IDS/IPS signatures for exploitation attempts