A vulnerability was detected in macrozheng mall up to 1.0.3. This vulnerability affects the function AlipayServiceImpl.pay of the file com/macro/mall/portal/service/impl/AlipayServiceImpl.java of the component Payment Endpoint. The manipulation of the argument total_amount results in business logic errors. The attack can be launched remotely. The exploit is now public and may be used. The patch is identified as dcaa93b3150352e5044708d7211b5bed0af4509f. A patch should be applied to remediate this issue.