Vulnerability in Craftcms Commerce
CVE-2026-55795
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.
Published · last modified .
EPSS exploit prediction
EPSS: 0.005 (43.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 44th percentile — 43.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000
Affected products
- Craftcms Commerce — versions >= 4.0.0, < 4.11.2, >= 5.0.0, < 5.6.5
Weakness classification (CWE)
References
- github.com/craftcms/commerce/security/advisories/GHSA-h5gm-x9wr-vhcm
- github.com/craftcms/commerce/commit/a7d365cc33dc4c60c543defb3458bcdb5749bc13
- github.com/craftcms/commerce/commit/df22c4f9c4ea7fb7857d833f755e49ea6f9f5bb5
- github.com/craftcms/commerce/releases/tag/4.11.2
- github.com/craftcms/commerce/releases/tag/5.6.5