A vulnerability, which was classified as problematic, was found in SourceCodester Design and Implementation of Covid-19 Directory on Vaccination System 1.0. Affected is an unknown function of the file verification.php. The manipulation of the argument txtvaccinationID leads to cross site scripting. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. The identifier of this vulnerability is VDB-222852.