GHSA-gqc5-xv7m-gcjq · Severity: medium · Ecosystem: composer — Shopware has user enumeration via distinct error codes on Store API login endpoint
Shopware is an open commerce platform. Prior to 6.7.8.1 and 6.6.10.15, the Store API login endpoint (POST /store-api/account/login) returns different error codes depending on whether the submitted email address belongs to a registered customer (CHECKOUT__CUSTOMER_AUTH_BAD_CREDENTIALS) or is unknown (CHECKOUT__CUSTOMER_NOT_FOUND). The "not found" response also echoes the probed email address. This allows an unauthenticated attacker to enumerate valid customer accounts. The storefront login controller correctly unifies both error paths, but the Store API does not — indicating an inconsistent defense. This vulnerability is fixed in 6.7.8.1 and 6.6.10.15.
Conclusion & alert: CVE-2026-31888 is rated Low Risk (25.6/100): CVSS Medium severity, with low exploitation likelihood (EPSS 0.22%). Mandatory action: Monitor for updates and reassess as exploit intelligence or EPSS changes.
Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.
EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).
| # | Date | Old EPSS score | New EPSS score | Delta (New - Old) |
|---|---|---|---|---|
| 1 | 2026-06-15 | 0.05% | 0.22% | +0.17% |
| 2 | 2026-04-12 | 0.03% | 0.05% | +0.02% |
| 3 | 2026-03-12 | — | 0.03% | — |
Full EPSS history (3 records total)
CVSS metrics for this CVE.
| Base score | Version | Severity | Vector | Exploitability | Impact | Score source |
|---|---|---|---|---|---|---|
| 5.3 | 3.1 | MEDIUM |
|
3.9 | 1.4 | [email protected] |
GHSA-gqc5-xv7m-gcjq · Severity: medium · Ecosystem: composer — Shopware has user enumeration via distinct error codes on Store API login endpoint
| URL | Tags |
|---|---|
| https://github.com/shopware/shopware/security/advisories/GHSA-gqc5-xv7m-gcjq | Vendor Advisory |