1091
Another high - severity bug ( CVE -2018-12378 ) is a use - after - free vulnerability that occurs when an IndexedDB index ( a low - level API for client - side storage of significant amounts of structured data ) is deleted while still in use by JavaScript code providing payload values .
 discover vulnerability: occurs
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: occurs