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According to him and BeyondSecurity , whose SecuriTeam coordinated the disclosure of the flaw to the WordPress developers , the discovery of the vulnerability dates back to mid-2016 .
 the flaw: vulnerability; the WordPress developers: discoverer; SecuriTeam: discoverer; BeyondSecurity: discoverer; him: discoverer
Given event type and trigger, please tell me the arguments of all the listed option. Output format is "name1: role1; name2: role2". 
Event type: discover vulnerability 
  Option: vulnerable system owner, vulnerability, capabilities, time, vulnerable system version, discoverer, common vulnerabilities and exposures, supported platform, vulnerable system 
Text: {0} 
Answer:
 the flaw: vulnerability; the WordPress developers: discoverer; SecuriTeam: discoverer; BeyondSecurity: discoverer; him: discoverer