CVE-2026-55795

Craft Commerce (an ecommerce plugin for Craft CMS) is affected by a rate-limit bypass in CartController (src/controllers/CartController.php). The RateLimiter behavior activates only when the number POST/GET parameter is present. An unauthenticated attacker can omit number while submitting couponC...

CVE-2026-55795 Craft Commerce: Coupon Code Brute-Force via Rate Limit Bypass

Craft Commerce is an ecommerce platform for Craft CMS. From 4.0.0 until 4.11.2 and 5.6.5, CartController in src/controllers/CartController.php activates its RateLimiter only when the number POST or GET parameter is supplied. An unauthenticated attacker can submit couponCode values to...