Cross-Site Request Forgery (CSRF)
The point moderation form in the Userpoints 4.7.x before 4.7.x-2.3, 5.x-2 before 5.x-2.16, and 5.x-3 before 5.x-3.3 module for Drupal does not follow Drupal's Forms API submission model, which allows remote attackers to conduct cross-site request forgery (CSRF) attacks and manipulate points.
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.