CVE-2026-55795CWE-307

CVE-2026-55795

published September 14, 2026

CVSS
6.9
EPSS
1%
Percentile
42.8
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS
6.9 · NONE
CVSS v4.0
6.9 · 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
EPSS
0.00512 · 42.8th percentile
Weakness
CWE-307 · Improper Restriction of Excessive Authentication Attempts
Published
2026-09-14T20:17Z
References (5)
https://github.com/craftcms/commerce/commit/a7d365cc33dc4c60c543defb3458bcdb5749bc13 · [email protected]https://github.com/craftcms/commerce/commit/df22c4f9c4ea7fb7857d833f755e49ea6f9f5bb5 · [email protected]https://github.com/craftcms/commerce/releases/tag/4.11.2 · [email protected]https://github.com/craftcms/commerce/releases/tag/5.6.5 · [email protected]https://github.com/craftcms/commerce/security/advisories/GHSA-h5gm-x9wr-vhcm · [email protected]
EPSS history
Timeline
  • 16 SEP 04:28Z
    EPSS moved — → 0%
    epss
  • 14 SEP 15:55Z
    Craft Commerce: Coupon Code Brute-Force via Rate Limit Bypass
    cvelistv5