Yoyodyne Systems has recently bought out its competitor, Whamiedyne Systems, which went out of business due to a series of data breaches. As a cybersecurity analyst for Yoyodyne, you are assessing Whamiedyne's existing applications and infrastructure. During your analysis, you discover the following URL is used to access an application: -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- https://www.whamiedyne.com/app/accountInfo?acct=12345 -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- You change the URL to end with 12346 and notice that a different user's account information is displayed. Which of the following type of vulnerabilities or threats have you discovered?