CVE-2026-129248: Akaunting Invoice Item Validation helpers.php calculation_to_quantity numeric range comparison without minimum check

A weakness has been identified in Akaunting up to 3.3.0. The affected element is the function calculationtoquantity of the file helpers.php of the component Invoice Item Validation. Executing a manipulation of the argument quantity can lead to numeric range comparison without minimum check. The attack may be performed from remote. The vendor was contacted early about this disclosure but did not respond in any way.