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CVE-2026-55795

Craft Commerce: Coupon Code Brute-Force via Rate Limit Bypass PUBLISHED

Description (CNA)

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 actionUpdateCart for the session-based cart while omitting number, preventing creation of the IP rate-limit identity and allowing unlimited automated coupon-code guessing and enumeration. This issue is fixed in versions 4.11.2 and 5.6.5.

Affected (CNA)

Vendor / productVersions
craftcms / commerceaffected >= 4.0.0, < 4.11.2; affected >= 5.0.0, < 5.6.5

CWE

CWE-307

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.