{"id":"CVE-2026-55795","title":"Craft Commerce is an ecommerce platform for Craft CMS","summary":"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 unauthent…","severity":"medium","cvss":6.9,"cvssVector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N","cwe":["CWE-307"],"vendor":"craftcms","product":"commerce","affected":["commerce >= 4.0.0, < 4.11.2","commerce >= 5.0.0, < 5.6.5"],"patched":["craftcms/commerce 5.6.5","craftcms/commerce 4.11.2"],"published":"2026-09-14","updated":"2026-09-14","sourceUpdated":"2026-09-14T20:16:48.050","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-55795","references":[{"url":"https://github.com/craftcms/commerce/commit/a7d365cc33dc4c60c543defb3458bcdb5749bc13","label":"security-advisories@github.com"},{"url":"https://github.com/craftcms/commerce/commit/df22c4f9c4ea7fb7857d833f755e49ea6f9f5bb5","label":"security-advisories@github.com"},{"url":"https://github.com/craftcms/commerce/releases/tag/4.11.2","label":"security-advisories@github.com"},{"url":"https://github.com/craftcms/commerce/releases/tag/5.6.5","label":"security-advisories@github.com"},{"url":"https://github.com/craftcms/commerce/security/advisories/GHSA-h5gm-x9wr-vhcm","label":"security-advisories@github.com"},{"url":"https://github.com/advisories/GHSA-h5gm-x9wr-vhcm"}],"tags":["nvd","cve.org","ghsa","composer"],"ssvc":{"exploitation":"none","automatable":"yes","technicalImpact":"partial","timestamp":"2026-09-14T19:22:16.524924Z"},"cvssSource":"cna","ecosystem":"composer","ingestedAt":"2026-06-22T13:35:24.357Z","epss":0.00295,"epssPercentile":0.22323,"slug":"CVE-2026-55795","body":"## Overview\n\nCraft 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Package advisory (CVE-2026-55795)\n\nAffected packages:\n\n- `craftcms/commerce >= 5.0.0, <= 5.6.4`\n- `craftcms/commerce >= 4.0.0, <= 4.11.1`\n\nPatched in:\n\n- `craftcms/commerce 5.6.5`\n- `craftcms/commerce 4.11.2`\n\nSource: https://github.com/advisories/GHSA-h5gm-x9wr-vhcm","depth":"sunlit","depthScore":38,"depthScoreParts":{"impact":38,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[{"seq":203118,"id":"CVE-2026-55795","ts":1789409575156,"field":"cvss","old":null,"new":"6.9"}]}