{"id":"CVE-2021-33511","aliases":["GHSA-gc9g-67cq-p7v4","PYSEC-2021-83"],"url":"https://o3.security/vulnerability/CVE-2021-33511","summary":"Server-Side Request Forgery in Plone","details":"Plone though 5.2.4 allows SSRF via the lxml parser. This affects Diazo themes, Dexterity TTW schemas, and modeleditors in plone.app.theming, plone.app.dexterity, and plone.supermodel.","published":"2021-05-21T22:15:08.597Z","modified":"2026-07-08T21:27:04.984722Z","cvss":{"score":7.5,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[{"ecosystem":"PyPI","name":"plone","fixedVersion":null}],"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/server-side-request-forgery-via-lxml-parser"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-07-08T21:27:04.984722Z"}}