CVE-2026-112285

Description

Thelia before 3.1.5 and 3.2.x before 3.2.4 contains a business logic vulnerability that allows authenticated customers to bypass coupon usage limits because usage is counted only when orders become paid. Attackers can place multiple pay-later orders while a usage remains, or cancel paid orders to inflate max_usage, gaining unlimited discounts.

References

• https://github.com/thelia/thelia/blob/3.2.3/core/lib/Thelia/Action/Coupon.php
• https://github.com/thelia/thelia/blob/3.2.3/core/lib/Thelia/Domain/Promotion/Coupon/Service/CouponManager.php
• https://github.com/thelia/thelia/blob/3.2.3/core/lib/Thelia/Domain/Promotion/Coupon/Service/OrderCouponUsageManager.php
• https://github.com/thelia/thelia/commit/1c3ed9c7ad57fec8ea959aa2d2f506f9892777ea
• https://github.com/thelia/thelia/commit/edb7078bfce5ea31b40868d340b0b49dcc6cf00c