Cross-Site Request Forgery (CSRF)
The Email Users WordPress plugin through 4.8.8 does not have CSRF check in place when updating its settings, which could allow attackers to make a logged in admin change them via a CSRF attack and change the notification settings of arbitrary users
CWE-352 - Cross-Site Request Forgery (CSRF)
Cross-Site Request Forgery (CSRF) is a vulnerability that allows an attacker to make arbitrary requests in an authenticated vulnerable web application and disrupt the integrity of the victim’s session. The impact of a successful CSRF attack may range from minor to severe, depending upon the capabilities exposed by the vulnerable application and privileges of the user. An attacker may force the user to perform state-changing requests like transferring funds, changing their email address or password etc. However, if an administrative level account is affected, it may compromise the whole web application and associated sensitive data.