2352
We looked into past several Remote Code Execution ( RCE ) vulnerabilities reported in Apache Struts , and observed that in most of them , attackers have used Object Graph Navigation Language ( OGNL ) expressions .
 discover vulnerability: reported
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: reported