Amberdms Billing System (ABS) before 1.4.1 does not properly implement blacklisting after detection of invalid login attempts, which makes it easier for remote attackers to obtain access via a brute-force approach.

Amberdms Billing System (ABS) before 1.4.1, when a multi-instance installation is configured, might allow local users to obtain sensitive information by reading the cache in between runs of the include/cron/services_usage.php cron job.