Medium severityGHSA Advisory· Published Sep 14, 2026· Updated Sep 14, 2026
CVE-2026-55795
CVE-2026-55795
Description
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.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
craftcms/commercePackagist | >= 5.0.0, < 5.6.5 | 5.6.5 |
craftcms/commercePackagist | >= 4.0.0, < 4.11.2 | 4.11.2 |
Affected products
1Patches
Vulnerability mechanics
References
6- github.com/advisories/GHSA-h5gm-x9wr-vhcmghsaADVISORY
- github.com/craftcms/commerce/commit/df22c4f9c4ea7fb7857d833f755e49ea6f9f5bb5nvdWEB
- github.com/craftcms/commerce/security/advisories/GHSA-h5gm-x9wr-vhcmnvdWEB
- github.com/craftcms/commerce/commit/a7d365cc33dc4c60c543defb3458bcdb5749bc13nvd
- github.com/craftcms/commerce/releases/tag/4.11.2nvd
- github.com/craftcms/commerce/releases/tag/5.6.5nvd
News mentions
1- Craft CMS: Nine Vulnerabilities Including RCE and SSRF Disclosed in BatchVypr Intelligence · Jun 21, 2026