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4.1 KiB
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4.1 KiB
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{"schema_version":"1.9.0","id":"GHSA-4xfr-4p46-gc6p","published":"2026-08-20T18:42:11Z","modified":"2026-09-10T12:26:06.115395390Z","aliases":["CVE-2026-54622","PYSEC-2026-3820"],"summary":"django CMS: Clipboard copy IDOR discloses unauthorized plugin content","details":"### Summary\n The clipboard copy paths of the `copy_plugins` admin endpoint validate only the target (the user's own clipboard) and skip source-side authorization. A staff user can copy plugins out of a placeholder they have no permission on into their clipboard, then read the (secret) content.\n\n ### Details\n In `cms/admin/placeholderadmin.py`, `_copy_plugin_to_clipboard` and `_copy_placeholder_to_clipboard` check `has_copy_plugins_permission`, which only evaluates `request.toolbar.clipboard.has_add_plugins_permission(...)` — the\n clipboard belongs to the requesting user, and `check_source` is likewise applied only to the clipboard. The source placeholder identified by the attacker-supplied `source_placeholder_id` / `source_plugin_id` is never authorization-checked. (The placeholder-to-placeholder copy path, `has_copy_from_placeholder_permission`, correctly checks both sides.)\n\n ### Impact\n A staff user holding the global add permission for a plugin type, but with no access to a given placeholder/page, can copy that placeholder's plugins into their own clipboard and read content (e.g. link names/URLs, text) they cannot reach through the normal edit endpoints.\n\n Requires `CMS_PERMISSION=True` with per-placeholder/page restrictions.\n\n ### Patches\n Fixed in 5.0.8: the clipboard copy paths now also verify source-side permission (`has_add_plugins_permission` + `check_source` on the source placeholder), matching placeholder-to-placeholder copy.\n\n ### Workarounds\n None. Upgrade is recommended.\n\n ### Credits\n Reported by the security team at the University of Sydney ([@reporter]).","affected":[{"package":{"name":"django-cms","ecosystem":"PyPI","purl":"pkg:pypi/django-cms"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"5.0.8"}]}],"versions":["2.0.1","2.0.2","2.1.1","2.1.2","2.1.3","2.1.4","2.1.5","2.2","2.2.1","2.3.1","2.3.2","2.3.3","2.3.4","2.3.5","2.3.6","2.3.7","2.3.8","2.4.0","2.4.1","2.4.2","2.4.3","3.0","3.0.1","3.0.10","3.0.11","3.0.12","3.0.13","3.0.14","3.0.15","3.0.16","3.0.17","3.0.18","3.0.2","3.0.3","3.0.4","3.0.5","3.0.6","3.0.7","3.0.8","3.0.9","3.1.0","3.1.0.b1","3.1.0rc1","3.1.0rc2","3.1.1","3.1.2","3.1.3","3.1.4","3.1.5","3.1.6","3.1.7","3.10.0","3.10.0rc1","3.10.0rc2","3.10.1","3.10.1rc1","3.11.0","3.11.1","3.11.10","3.11.11","3.11.1rc1","3.11.2","3.11.3","3.11.4","3.11.5","3.11.6","3.11.7","3.11.8","3.11.9","3.2.0","3.2.1","3.2.2","3.2.3","3.2.4","3.2.5","3.3.0","3.3.0rc2","3.3.0rc3","3.3.0rc4","3.3.1","3.3.2","3.3.3","3.3.4","3.4.0","3.4.1","3.4.2","3.4.3","3.4.4","3.4.5","3.4.6","3.4.7","3.5.0","3.5.1","3.5.2","3.5.3","3.5.4","3.6.0","3.6.0rc1","3.6.0rc3","3.6.1","3.7.0","3.7.0rc1","3.7.0rc2","3.7.1","3.7.2","3.7.3","3.7.4","3.8.0","3.8.0rc1","3.8.1","3.8.2","3.9.0","3.9.0rc1","3.9.0rc2","3.9.0rc3","4.1.0","4.1.0rc1","4.1.0rc2","4.1.0rc3","4.1.0rc4","4.1.0rc5","4.1.1","4.1.10","4.1.11","4.1.2","4.1.3","4.1.4","4.1.5","4.1.6","4.1.7","4.1.9","5.0.0","5.0.0a1","5.0.1","5.0.2","5.0.3","5.0.4","5.0.5","5.0.6","5.0.7"],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/08/GHSA-4xfr-4p46-gc6p/GHSA-4xfr-4p46-gc6p.json"}}],"references":[{"type":"WEB","url":"https://github.com/django-cms/django-cms/security/advisories/GHSA-4xfr-4p46-gc6p"},{"type":"WEB","url":"https://github.com/django-cms/django-cms/pull/8645"},{"type":"WEB","url":"https://github.com/django-cms/django-cms/commit/7642a98ab3170793c0b27b4125dd1f3d318b8a1c"},{"type":"PACKAGE","url":"https://github.com/django-cms/django-cms"},{"type":"WEB","url":"https://github.com/django-cms/django-cms/releases/tag/5.0.8"}],"database_specific":{"cwe_ids":["CWE-639"],"github_reviewed":true,"github_reviewed_at":"2026-08-20T18:42:11Z","nvd_published_at":null,"severity":"MODERATE"},"severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N"}]} |