Verisign Payflow Link, when running with empty Accepted URL fields, does not properly verify the data in the hidden AMOUNT field, which allows remote attackers to modify the price of the items that they purchase.
CVSS Severity (version 2.0):
Impact Subscore: 2.9
Exploitability Subscore: 10.0
CVSS Version 2 Metrics:
Access Vector: Network exploitable
Access Complexity: Low
Authentication: Not required to exploit
Impact Type: Allows unauthorized modification
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20041129 [SHK-001]Payflow Link Default Config may lead to Hidden Field Modification
Advisory; Patch Information
Vulnerable software and versions