An attacker can buy marketplace articles for lower prices as it allows for negative quantity values leading to business loss
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原文摘录
摘自原文（1381 字符中的一小部分）
When we **Summary:** When someone goes to https://www.semrush.com/marketplace/offers/ and orders for articles, an attacker can pay for less than intended due to negative quantities being allowed.
原文中的代码
POST /marketplace/api/purchases/bulk HTTP/1.1 Host: www.semrush.com User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:71.0) Gecko/20100101 Firefox/71.0 Accept: application/json Accept-Language: en-US,en;q=0.5 Accept-Encoding: gzip, deflate Referer: https://www.semrush.com/marketplace/offers/ …
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时间线
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阅读 HackerOne 原文 ↗作者 @yashrs · 版权归作者与 Semrush 所有