Weak Authentication vulnerability in Drupal Two-factor Authentication (TFA) allows Authentication Abuse.This issue affects Two-factor Authentication (TFA): from 0.0.0 before 1.5.0.
The product uses an authentication mechanism to restrict access to specific users or identities, but the mechanism does not sufficiently prove that the claimed identity is correct.
Attackers may be able to bypass weak authentication faster and/or with less effort than expected.