{"action":"Upgrade plone to 5.2.3 or later.","affected":[{"fixed":"5.2.3","introduced":"0"}],"component":"plone","cve_ids":["CVE-2020-28736"],"ecosystem":"PyPI","epss":0.01453,"exploited":false,"fixed_versions":["5.2.3"],"ghsa_id":"GHSA-2c8c-84w2-j38j","id":"tcs_01M5KGA152ZWM3GYWD6TPMZJWX","modified_at":"2026-07-13T16:43:28.446541636Z","published_at":"2020-12-30T19:15:00Z","references":["https://osv.dev/vulnerability/PYSEC-2020-248","https://dist.plone.org/release/5.2.3/RELEASE-NOTES.txt","https://github.com/plone/Products.CMFPlone/issues/3209","https://www.misakikata.com/codes/plone/python-en.html","https://github.com/advisories/GHSA-2c8c-84w2-j38j"],"severity":{"label":"unknown"},"sources":[{"source":"osv","source_id":"PYSEC-2020-248","url":"https://osv.dev/vulnerability/PYSEC-2020-248"}],"summary":"Plone before 5.2.3 allows XXE attacks via a feature that is protected by an unapplied permission of plone.schemaeditor.ManageSchemata (therefore, only available to the Manager role)."}