CVE-2025-61546
CRITICALCVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
Lifecycle Timeline
3Description
There is an issue on the /PSP/appNET/Store/CartV12.aspx/GetUnitPrice endpoint in edu Business Solutions Print Shop Pro WebDesk version 18.34 (fixed in 19.69) that enables remote attacker to create financial discrepancies by purchasing items with a negative quantity. This vulnerability is possible due to reliance on client-side input validation controls.
Analysis
Print Shop Pro WebDesk 18.34 allows purchasing items with negative quantities, creating financial discrepancies. Attackers can generate credits or manipulate pricing through the GetUnitPrice endpoint. PoC available, fixed in 19.69.
Technical Context
The /PSP/appNET/Store/CartV12.aspx/GetUnitPrice endpoint relies on client-side validation for quantity values (CWE-20). Negative quantities bypass the UI validation, causing the system to calculate negative prices (credits) or manipulate order totals.
Affected Products
Print Shop Pro WebDesk 18.34 (fixed in 19.69)
Remediation
Update to version 19.69. Implement server-side validation for all numeric inputs.
Priority Score
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External POC / Exploit Code
Leaving vuln.today