[原文]Dave Nielsen and Patrick Breitenbach PayPal Web Services (aka PHP Toolkit) 0.50 and possibly earlier has (1) world-readable permissions for ipn/logs/ipn_success.txt, which allows local users to view sensitive information (payment data), and (2) world-writable permissions for ipn/logs, which allows local users to delete or replace payment data.
PHP Toolkit for PayPal ipn_success.txt Log Local Information Disclosure
Local Access Required
Loss of Confidentiality
PHP Toolkit for PayPal contains a flaw that may lead to an unauthorized information disclosure. The issue is triggered when the installation documentation is followed, which sets access rights to the log file directory '../ipn/logs/' to world-readable. This will disclose the 'logs/ipn_success.txt' log file's content which contains payment transaction data, resulting in a loss of confidentiality.
Currently, there are no known upgrades, patches, or workarounds available to correct this issue.