The AllCoach WordPress plugin before 1.0.2 does not verify that an email address submitted to a public account-registration endpoint is not already associated with an existing user before overwriting that user's password, allowing unauthenticated attackers to reset the password of arbitrary accounts, including administrators, and take over the site.

The AllCoach WordPress plugin before 1.0.2 does not verify that an email address submitted to a public account-registration endpoint is not already associated with an existing user before overwriting that user's password, allowing unauthenticated attackers to reset the password of arbitrary accounts, including administrators, and take over the site.