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CVE PROGRAM SOURCE RECORD8.2 High

CVE-2026-57959

Hi.Events 1.9.0 - Promo Code Max-Usage Bypass via Asynchronous Job Race Condition

Description

Hi.Events through 1.9.0 contains a promo code validation vulnerability where reservation validates usage count before asynchronous UpdateEventStatisticsJob increments it, allowing attackers to redeem limited promo codes unlimited times. Attackers can sequentially reserve multiple orders with the same restricted promo code, each reading order_usage_count=0 and passing validation, then complete them all at discounted prices without concurrent requests.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

HiEventsDev Hi.Events

Default version status: unaffected

  • 0 to ≤ 1.9.0affected
pkg:github/HiEventsDev/Hi.Events

References