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The last flaw addressed by the vendor , tracked as CVE -2018-7431 , is a path traversal issue that allows an authenticated attacker to download arbitrary files from the vendor Django app .
 ( discover vulnerability: tracked as,  CVE -2018-7431: common vulnerabilities and exposures, issue: vulnerability, allows an authenticated attacker to download arbitrary files: capabilities, Django app: vulnerable system) 
Locate the role in the text that participated in the event based on the event type and return it in the event list. 
 Option: Event type: phishing, data breach, ransom, discover vulnerability, patch vulnerability, Arguments type: vulnerable system, capabilities, vulnerability, number of victim, issues addressed, compromised data, damage amount, common vulnerabilities and exposures, victim, patch number, number of data, tool, discoverer, time, purpose, place, payment method, releaser, vulnerable system version, attacker, supported platform, patch, price, vulnerable system owner, trusted entity, attack pattern. 
Text: {0} 
Answer:
 ( discover vulnerability: tracked as,  CVE -2018-7431: common vulnerabilities and exposures, issue: vulnerability, allows an authenticated attacker to download arbitrary files: capabilities, Django app: vulnerable system) 