What’s Vulnerable › Vulnerabilities

CVE-2023-34099: Improper mail validation in Shopware

• Severity: medium (CVSS 5.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.6% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2023-06-27 · updated 2026-06-17
• Weakness: CWE-754

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.

Affected products

• shopware: from 5.1.4 through 5.7.17

References

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

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