{"id":"CVE-2023-34099","aliases":["EUVD-2023-1803","GHSA-gh66-fp7j-98v5"],"status":"published","title":"Improper mail validation in Shopware","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.","severity":{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.00649,"percentile":0.51455,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-754"],"published":"2023-06-27T16:29:07Z","modified":"2026-10-28T02:31:02Z","fixes":[{"ecosystem":"Packagist","package":"shopware/shopware","fixed_in":["5.7.18"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"Packagist","package":"shopware/shopware","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"5.1.4"},{"last_affected":"5.7.17"},{"fixed":"5.7.18"}]}]},{"source":"osv","ecosystem":"Packagist","package":"shopware/shopware","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"5.1.4"},{"fixed":"5.7.18"}]}],"versions":["5.3.0","v5.1.4","v5.1.5","v5.1.6","v5.2.0","v5.2.0-BETA1","v5.2.0-RC1","v5.2.0-RC2","v5.2.0-RC3","v5.2.1","v5.2.10","v5.2.11","v5.2.12","v5.2.13","v5.2.14","v5.2.15","v5.2.16","v5.2.17","v5.2.18","v5.2.19","v5.2.2","v5.2.20","v5.2.21","v5.2.22","v5.2.23","v5.2.24","v5.2.25","v5.2.26","v5.2.27","v5.2.3","v5.2.4","v5.2.5","v5.2.6","v5.2.7","v5.2.8","v5.2.9","v5.3.4","v5.3.5","v5.3.6","v5.3.7","v5.4.0","v5.4.0-RC1","v5.4.1","v5.4.2","v5.4.3","v5.4.4","v5.4.5","v5.4.6","v5.5.0","v5.5.0-BETA1","v5.5.0-RC1","v5.5.1","v5.5.10","v5.5.2","v5.5.3","v5.5.4","v5.5.5","v5.5.6","v5.5.7","v5.5.8","v5.5.9","v5.6.0","v5.6.0-RC1","v5.6.1","v5.6.10","v5.6.2","v5.6.3","v5.6.4","v5.6.5","v5.6.6","v5.6.7","v5.6.8","v5.6.9","v5.7.0","v5.7.0-RC1","v5.7.0-RC2","v5.7.1","v5.7.10","v5.7.11","v5.7.12","v5.7.13","v5.7.14","v5.7.15","v5.7.16","v5.7.16-RC1","v5.7.17","v5.7.17-RC1","v5.7.2","v5.7.3","v5.7.4","v5.7.5","v5.7.6","v5.7.7","v5.7.8","v5.7.9"]}],"products":[{"vendor":"shopware","product":"shopware"}],"references":[{"url":"https://github.com/shopware/shopware/security/advisories/GHSA-gh66-fp7j-98v5","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory","advisory","web"]},{"url":"https://github.com/shopware5/shopware/commit/39cc714d9a0be33b43877044d0b88ea3c6b43f3d","tags":["x_refsource_MISC","x_transferred","Patch","fix","web"]},{"url":"https://docs.shopware.com/en/shopware-5-en/security-updates/security-update-06-2023","tags":["x_refsource_MISC","x_transferred","Patch","Vendor Advisory","web"]},{"url":"https://www.shopware.com/en/changelog-sw5/#5-7-18","tags":["x_refsource_MISC","x_transferred","Release Notes","web"]},{"url":"https://github.com/shopware5/shopware/security/advisories/GHSA-gh66-fp7j-98v5","tags":["web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-34099","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-gh66-fp7j-98v5"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/34xxx/CVE-2023-34099.json","tags":["advisory"]},{"url":"https://github.com/shopware5/shopware","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2023-34099","title":"Improper mail validation in Shopware","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.","status":"published","published":"2023-06-27T16:29:07.22Z","modified":"2024-11-07T17:03:59.129Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium","assessor":"cna"}],"cwes":["CWE-754"],"updated_at":"2026-11-02T14:35:35.580545Z"}],"euvd":[{"id":"EUVD-2023-1803","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.","status":"published","published":"2023-06-27T16:29:07Z","modified":"2024-11-07T17:03:59Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium"}],"updated_at":"2026-11-03T00:05:08.272544Z"}],"ghsa":[{"id":"GHSA-gh66-fp7j-98v5","title":"Shopware improper mail validation vulnerability","description":"### Impact\nThe 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. \n\n### Patches\nWe recommend updating to the current version 5.7.18. You can get the update to 5.7.18 regularly via the Auto-Updater or directly via the release page.\nhttps://github.com/shopware5/shopware/releases/tag/v5.7.18\n\nFor older versions you can use the Security Plugin:\nhttps://store.shopware.com/en/swag575294366635f/shopware-security-plugin.html\n\n\n### References\nhttps://docs.shopware.com/en/shopware-5-en/security-updates/security-update-06-2023","status":"published","published":"2023-06-28T22:34:08Z","modified":"2023-11-10T05:03:24Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium"}],"cwes":["CWE-754"],"updated_at":"2026-11-02T14:37:19.438667Z"}],"nvd":[{"id":"CVE-2023-34099","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.","status":"published","published":"2023-06-27T17:15:09.813Z","modified":"2026-06-17T06:02:53.577Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium","assessor":"secondary"},{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium","assessor":"primary"}],"cwes":["CWE-754"],"updated_at":"2026-11-02T14:08:14.715708Z"}],"osv":[{"id":"CVE-2023-34099","title":"Improper mail validation in Shopware","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.","status":"published","published":"2023-06-27T16:29:07.22Z","modified":"2026-10-28T02:31:02.842102776Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium"}],"cwes":["CWE-754"],"updated_at":"2026-11-02T15:44:32.116263Z"},{"id":"GHSA-gh66-fp7j-98v5","title":"Shopware improper mail validation vulnerability","description":"### Impact\nThe 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. \n\n### Patches\nWe recommend updating to the current version 5.7.18. You can get the update to 5.7.18 regularly via the Auto-Updater or directly via the release page.\nhttps://github.com/shopware5/shopware/releases/tag/v5.7.18\n\nFor older versions you can use the Security Plugin:\nhttps://store.shopware.com/en/swag575294366635f/shopware-security-plugin.html\n\n\n### References\nhttps://docs.shopware.com/en/shopware-5-en/security-updates/security-update-06-2023","status":"published","published":"2023-06-28T22:34:08Z","modified":"2024-02-16T08:11:42.95144Z","cvss":[{"version":"3.1","score":5.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","level":"medium"}],"cwes":["CWE-754"],"updated_at":"2026-11-02T15:46:47.822182Z"}]}}