{"id":"CVE-2021-33509","aliases":["GHSA-hm2p-fhwx-9285","PYSEC-2021-81"],"url":"https://o3.security/vulnerability/CVE-2021-33509","summary":"Incorrect Permission Assignment for Critical Resource\tin Plone","details":"Plone through 5.2.4 allows remote authenticated managers to perform disk I/O via crafted keyword arguments to the ReStructuredText transform in a Python script.","published":"2021-05-21T22:15:08.537Z","modified":"2026-07-08T21:27:04.672727Z","cvss":{"score":9.9,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[{"ecosystem":"PyPI","name":"plone","fixedVersion":"5.2.5"}],"fix":null,"references":[{"type":"ADVISORY","url":"http://www.openwall.com/lists/oss-security/2021/05/22/1"},{"type":"ADVISORY","url":"https://plone.org/security/hotfix/20210518/writing-arbitrary-files-via-docutils-and-python-script"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-08T21:27:04.672727Z"}}