{"id":"CVE-2020-5220","aliases":["CVE-2020-5218","GHSA-8vp7-j5cj-vvm2","GHSA-prg5-hg25-8grq"],"url":"https://o3.security/vulnerability/CVE-2020-5220","summary":"Ability to expose data in Sylius by using an unintended serialisation group","details":"Sylius ResourceBundle accepts and uses any serialisation groups to be passed via a HTTP header. This might lead to data exposure by using an unintended serialisation group - for example it could make Shop API use a more permissive group from Admin API. Anyone exposing an API with ResourceBundle's controller is affected. The vulnerable versions are: <1.3 || >=1.3.0 <=1.3.12 || >=1.4.0 <=1.4.5 || >=1.5.0 <=1.5.0 || >=1.6.0 <=1.6.2. The patch is provided for Sylius ResourceBundle 1.3.13, 1.4.6, 1.5.1 and 1.6.3, but not for any versions below 1.3.","published":"2020-01-27T21:15:11.430Z","modified":"2026-07-09T12:33:17.917839Z","cvss":{"score":5.3,"severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[{"ecosystem":"Packagist","name":"sylius/resource-bundle","fixedVersion":"1.4.6"},{"ecosystem":"Packagist","name":"sylius/resource-bundle","fixedVersion":"1.5.1"},{"ecosystem":"Packagist","name":"sylius/resource-bundle","fixedVersion":"1.6.3"},{"ecosystem":"Packagist","name":"sylius/sylius","fixedVersion":"1.3.12"},{"ecosystem":"Packagist","name":"sylius/sylius","fixedVersion":"1.4.4"},{"ecosystem":"Packagist","name":"sylius/resource-bundle","fixedVersion":"1.3.13"}],"fix":null,"references":[{"type":"ADVISORY","url":"https://github.com/FriendsOfPHP/security-advisories/blob/master/sylius/resource-bundle/CVE-2020-5220.yaml"},{"type":"ADVISORY","url":"https://github.com/Sylius/SyliusResourceBundle/security/advisories/GHSA-8vp7-j5cj-vvm2"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-09T12:33:17.917839Z"}}