There is an issue on the /PSP/appNET/Store/CartV12.aspx/GetUnitPrice endpoint in edu Business Solutions Print Shop Pro WebDesk version 18.34 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.
https://github.com/chndlrx/vulnerability-disclosures/tree/main/CVE-2025-61546