{"id":"CVE-2022-39297","aliases":["EUVD-2022-7122","GHSA-m3m3-6gww-7gj9"],"status":"published","title":"Deserialization of untrusted data in MelisCms","description":"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` \u003e= 5.0.1. This issue was addressed by restricting allowed classes when deserializing user-controlled data.","severity":{"version":"3.1","score":7.7,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-12","score":0.01267,"percentile":0.70179,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-502"],"published":"2022-10-11T20:45:54Z","modified":"2026-11-11T02:45:55Z","fixes":[{"ecosystem":"Packagist","package":"melisplatform/melis-cms","fixed_in":["5.0.1"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"Packagist","package":"melisplatform/melis-cms","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.0.1"}]}]},{"source":"osv","ecosystem":"Packagist","package":"melisplatform/melis-cms","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.0.1"}]}],"versions":["v2.1","v2.1.1","v2.2.0","v2.2.1","v2.3.0","v2.3.1","v2.4.0","v2.5.0","v3.0.0","v3.0.1","v3.0.10","v3.0.2","v3.0.3","v3.0.4","v3.0.5","v3.0.6","v3.0.7","v3.0.8","v3.0.9","v3.1.0","v3.1.1","v3.1.10","v3.1.11","v3.1.12","v3.1.13","v3.1.2","v3.1.3","v3.1.4","v3.1.5","v3.1.6","v3.1.7","v3.1.8","v3.1.9","v3.2.0","v3.2.1","v3.2.10","v3.2.11","v3.2.12","v3.2.13","v3.2.14","v3.2.2","v3.2.3","v3.2.4","v3.2.5","v3.2.6","v3.2.7","v3.2.8","v3.2.9","v4.0.0","v4.0.1","v4.0.10","v4.0.11","v4.0.2","v4.0.3","v4.0.4","v4.0.5","v4.0.6","v4.0.7","v4.0.8","v4.0.9","v4.1.0","v4.1.1","v4.1.2","v5.0.0"]}],"products":[{"vendor":"melisplatform","product":"melis-cms"},{"vendor":"melistechnology","product":"meliscms"}],"references":[{"url":"https://github.com/melisplatform/melis-cms/security/advisories/GHSA-m3m3-6gww-7gj9","tags":["x_transferred","Third Party Advisory","advisory","web"]},{"url":"https://github.com/melisplatform/melis-cms/commit/d124b2474699a679a24ec52620cadceb3d4cec11","tags":["x_transferred","Patch","Third Party Advisory","fix","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2022-39297","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-m3m3-6gww-7gj9"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/39xxx/CVE-2022-39297.json","tags":["advisory"]},{"url":"https://github.com/melisplatform/melis-cms","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2022-39297","title":"Deserialization of untrusted data in MelisCms","description":"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` \u003e= 5.0.1. This issue was addressed by restricting allowed classes when deserializing user-controlled data.","status":"published","published":"2022-10-12T00:00:00Z","modified":"2025-04-23T16:51:20.636Z","cvss":[{"version":"3.1","score":7.7,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L","level":"high","assessor":"cna"}],"cwes":["CWE-502"],"updated_at":"2026-11-02T14:34:39.559326Z"}],"euvd":[{"id":"EUVD-2022-7122","description":"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` \u003e= 5.0.1. This issue was addressed by restricting allowed classes when deserializing user-controlled data.","status":"published","published":"2022-10-12T00:00:00Z","modified":"2025-04-23T16:51:20Z","cvss":[{"version":"3.1","score":7.7,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L","level":"high"}],"updated_at":"2026-11-02T20:52:11.891054Z"}],"ghsa":[{"id":"GHSA-m3m3-6gww-7gj9","title":"melisplatform/melis-cms vulnerable to deserialization of untrusted data","description":"### Impact\n\nAttackers 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.\n\nUsers should immediately upgrade to `melisplatform/melis-cms` \u003e= 5.0.1.\n\n### Patches\n\nThis issue was addressed by restricting allowed classes when deserializing user-controlled data. \n\n### References\n\n- https://github.com/melisplatform/melis-cms/commit/d124b2474699a679a24ec52620cadceb3d4cec11\n\n### For more information\n\nIf you have any questions or comments about this advisory, you can contact:\n- The original reporters, by sending an email to vulnerability.research [at] sonarsource.com;\n- The maintainers, by opening an issue on this repository.\n","status":"published","published":"2022-10-11T20:45:54Z","modified":"2023-01-27T05:05:48Z","cvss":[{"version":"3.1","score":7.7,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L","level":"high"}],"cwes":["CWE-502"],"updated_at":"2026-11-02T14:36:21.8171Z"}],"nvd":[{"id":"CVE-2022-39297","description":"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` \u003e= 5.0.1. This issue was addressed by restricting allowed classes when deserializing user-controlled data.","status":"published","published":"2022-10-12T23:15:09.623Z","modified":"2026-06-17T04:58:05.66Z","cvss":[{"version":"3.1","score":7.7,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L","level":"high","assessor":"secondary"},{"version":"3.1","score":9.8,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"critical","assessor":"primary"}],"cwes":["CWE-502"],"updated_at":"2026-11-02T14:07:29.52424Z"}],"osv":[{"id":"CVE-2022-39297","title":"Deserialization of untrusted data in MelisCms","description":"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` \u003e= 5.0.1. This issue was addressed by restricting allowed classes when deserializing user-controlled data.","status":"published","published":"2022-10-12T00:00:00Z","modified":"2026-11-11T10:46:08.875092418Z","cvss":[{"version":"3.1","score":7.7,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L","level":"high"}],"cwes":["CWE-502"],"updated_at":"2026-11-11T02:50:43.46164Z"},{"id":"GHSA-m3m3-6gww-7gj9","title":"melisplatform/melis-cms vulnerable to deserialization of untrusted data","description":"### Impact\n\nAttackers 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.\n\nUsers should immediately upgrade to `melisplatform/melis-cms` \u003e= 5.0.1.\n\n### Patches\n\nThis issue was addressed by restricting allowed classes when deserializing user-controlled data. \n\n### References\n\n- https://github.com/melisplatform/melis-cms/commit/d124b2474699a679a24ec52620cadceb3d4cec11\n\n### For more information\n\nIf you have any questions or comments about this advisory, you can contact:\n- The original reporters, by sending an email to vulnerability.research [at] sonarsource.com;\n- The maintainers, by opening an issue on this repository.\n","status":"published","published":"2022-10-11T20:45:54Z","modified":"2023-11-08T04:10:18.084977Z","cvss":[{"version":"3.1","score":7.7,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L","level":"high"}],"cwes":["CWE-502"],"updated_at":"2026-11-02T15:46:51.10002Z"}]}}