571
Popular open source forum software suffers from vulnerabilities that could let an attacker gain access to user accounts , carry out web - cache poisoning attacks , and in some instances , execute arbitrary code .
 discover vulnerability: suffers
Please tell me event type and its trigger word from given type options. Output format is "type: trigger".  Option: phishing, data breach, ransom, discover vulnerability, patch vulnerability 
Text: {0} 
Answer:
 discover vulnerability: suffers