B.A.S C2Box before 4.0.0 (r19171) relies on client-side validation, which allows remote attackers to "corrupt the business logic" via a negative value in an overdraft.
Severity
CVSS 3.0
7.5 high
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
EPSS
1.4% chance of exploitation in the next 30 days; higher than 73% of CVEs (scores of 2026-10-31)