An issue was discovered in Simplejobscript.com SJS through 1.66. There is an unauthenticated SQL injection via the job applications search function. The vulnerable parameter is job_id. The function is getJobApplicationsByJobId(). The file is _lib/class.JobApplication.php.
https://github.com/niteosoft/simplejobscript/issues/9
https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-8645