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TI-2023-16945 Aliases CVE-2023-34099GHSA-gh66-fp7j-98v5

Improper mail validation in Shopware

Priority LOW 31CWE-754Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
None · Low · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub.

Summary

Shopware is an open source e-commerce software. The mail validation in the registration process had some flaws, so it was possible to construct different mail addresses, that in the end result in the same address, which is shared by multiple accounts. This issue has been addressed in version 5.7.18 and users are advised to update. There are no known workarounds for this vulnerability.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00649 51st percentileScored 2026-11-07
Fix Fixed shopware (shopware): 5.7.18shopware/shopware (Packagist): 5.7.18

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
shopwareshopwarebefore 5.7.185.7.18Patch availableCNA
—shopware/shopware (Packagist)5.1.4 to before 5.7.185.7.18Patch availableGHSA-gh66-fp7j-98v5
  • shopware Vendorshopware Affected before 5.7.18 Fixed in 5.7.18 Patch available CNA
  • shopware/shopware (Packagist) Vendor— Affected 5.1.4 to before 5.7.18 Fixed in 5.7.18 Patch available GHSA-gh66-fp7j-98v5

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:shopware:shopware:*:*:*:*:*:*:*:*5.1.4 – 5.7.17Vulnerableshopware
  • cpe:2.3:a:shopware:shopware:*:*:*:*:*:*:*:* Versions 5.1.4 – 5.7.17 Vulnerable ·shopware

Remediation

  • Fix · CNA shopware (shopware) Fixed in 5.7.18
  • Fix · GHSA-gh66-fp7j-98v5 shopware/shopware (Packagist) Fixed in 5.7.18 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-34099
  2. 2026-10-03 Alias added: GHSA-gh66-fp7j-98v5
  3. 2026-10-16 EPSS moved to the 50th–90th percentile

References

Patch 2

Advisory 2

Other 3

  • TI-2023-01895 Improper Control of Generation of Code in Twig Rendered Views in Shopware CVSS 3.1HIGH 8.8
  • TI-2025-20623 Shopware prior to version 6.5.8.13 is affected by a SQL injection vulnerability in the… CVSS 3.1MEDIUM 6.8
  • TI-2024-28343 Shopware vulnerable to Server Side Template Injection in Twig using Context functions CVSS 3.1HIGH 8.3
  • TI-2019-09582 In createInstanceFromNamedArguments in Shopware through 5.6.x, a crafted web request can… CVSS 3.1HIGH 8.8
  • TI-2016-02607 The backend/Login/load/ script in Shopware before 5.1.5 allows remote attackers to execute arbitrary code. CVSS 3.0CRITICAL 9.8
  • TI-2025-32365 A stored cross-site scripting (XSS) vulnerability exists in the Shopware 6 installation… CVSS 3.1MEDIUM 6.1
See all 66 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences