{"id":"CVE-2022-39297","aliases":["GHSA-m3m3-6gww-7gj9"],"url":"https://o3.security/vulnerability/CVE-2022-39297","summary":"Deserialization of untrusted data in MelisCms","details":"MelisCms provides a full CMS for Melis Platform, including templating system, drag'n'drop of plugins, SEO and many administration tools. Attackers can deserialize arbitrary data on affected versions of `melisplatform/melis-cms`, and ultimately leads to the execution of arbitrary PHP code on the system. Conducting this attack does not require authentication. Users should immediately upgrade to `melisplatform/melis-cms` >= 5.0.1. This issue was addressed by restricting allowed classes when deserializing user-controlled data.","published":"2022-10-12T00:00:00Z","modified":"2026-07-15T01:49:11.075082533Z","cvss":{"score":7.7,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L"},"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Packagist","name":"melisplatform/melis-cms","fixedVersion":"5.0.1"}],"fix":{"url":"https://github.com/melisplatform/melis-cms/commit/d124b2474699a679a24ec52620cadceb3d4cec11","label":"melisplatform/melis-cms@d124b24"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/39xxx/CVE-2022-39297.json"},{"type":"ADVISORY","url":"https://github.com/melisplatform/melis-cms/security/advisories/GHSA-m3m3-6gww-7gj9"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2022-39297"},{"type":"FIX","url":"https://github.com/melisplatform/melis-cms/commit/d124b2474699a679a24ec52620cadceb3d4cec11"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-15T01:49:11.075082533Z"}}