Kener 3.0.0 before 4.1.10 contains an authentication bypass vulnerability that allows unauthenticated attackers to forge session tokens by using the hardcoded DUMMYSECRET fallback key. When KENERSECRETKEY is empty or unset, attackers knowing an administrator email can sign a kener-user cookie to access /manage/api with full administrative privileges or forge password-reset tokens.

Kener 4.0.0 before 4.1.6 contains an information disclosure vulnerability that allows unauthenticated attackers to retrieve hidden or inactive monitor data by querying dashboard API handlers lacking visibility filters. Attackers can supply a known or guessed monitor tag to endpoints such as monitor-bar and monitor-latency-chart to obtain names, descriptions, status, uptime history and latency.