| 제목 | PHPEMS <=11.0 Race Condition |
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| 설명 | The coupon recharge function in PHPEMS (a web-based exam simulation system) is vulnerable to a Race Condition. By sending multiple concurrent requests with the same valid coupon code, an attacker can exploit the lack of atomicity checks on the coupon's usage status and inventory. This allows the same coupon to be recharged repeatedly, resulting in unauthorized accumulation of virtual assets (or potential financial losses if the coupons are tied to real currency) in the attacker's account. |
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| 원천 | ⚠️ https://byebydoggy.github.io/post/2025/1229-phpems-coupon-recharge-race-condition-poc/ |
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| 사용자 | byebyedoggy (UID 90091) |
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| 제출 | 2025. 12. 29. AM 05:27 (10 개월 ago) |
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| 모더레이션 | 2025. 12. 29. AM 09:16 (4 hours later) |
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| 상태 | 수락 |
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| VulDB 항목 | 338632 [PHPEMS 까지 11.0 Coupon 경쟁 조건] |
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| 포인트들 | 20 |
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