{"id":"CVE-2016-4043","aliases":["EUVD-2017-0090","GHSA-6h8x-73fx-q2h9","PYSEC-2017-57"],"status":"published","title":"Chameleon in Plone allows Authentication Bypass","description":"Chameleon (five.pt) in Plone 5.0rc1 through 5.1a1 allows remote authenticated users to bypass Restricted Python by leveraging permissions to create or edit templates.","severity":{"version":"3.0","score":4.9,"vector":"CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N","level":"medium","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-08","score":0.01015,"percentile":0.63498,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-264","CWE-287"],"published":"2017-02-24T20:00:00Z","modified":"2026-10-24T10:31:03Z","fixes":[{"ecosystem":"PyPI","package":"plone","fixed_in":["5.1a2"],"sources":["osv"]}],"affected":[{"source":"ghsa","ecosystem":"PyPI","package":"plone","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"5.0rc1"},{"last_affected":"5.0.4"}]}]},{"source":"ghsa","ecosystem":"PyPI","package":"plone","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"5.1a1"},{"last_affected":"5.1a1"}]}],"versions":["5.1a1"]},{"source":"osv","ecosystem":"PyPI","package":"plone","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"5.0rc1"},{"last_affected":"5.0.4"}]}],"versions":["5.0","5.0.1","5.0.2","5.0.3","5.0.4","5.0rc1","5.0rc2","5.0rc3"]},{"source":"osv","ecosystem":"PyPI","package":"plone","versions":["5.1a1"]},{"source":"osv","ecosystem":"PyPI","package":"plone","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"5.0rc1"},{"fixed":"5.1a2"}]}],"versions":["5.0","5.0.1","5.0.10","5.0.2","5.0.3","5.0.4","5.0.5","5.0.6","5.0.7","5.0.8","5.0.9","5.0rc1","5.0rc2","5.0rc3","5.1a1"]}],"products":[{"vendor":"plone","product":"plone"}],"references":[{"url":"http://www.openwall.com/lists/oss-security/2016/04/20/3","tags":["mailing-list","x_refsource_MLIST","x_transferred","Mailing List","Third Party Advisory","advisory","web"]},{"url":"https://plone.org/security/hotfix/20160419/bypass-restricted-python","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory","advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2016-4043","tags":["advisory"]},{"url":"https://github.com/pypa/advisory-database/tree/main/vulns/plone/PYSEC-2017-57.yaml","tags":["web"]},{"url":"https://github.com/advisories/GHSA-6h8x-73fx-q2h9","tags":["advisory"]},{"url":"https://github.com/plone/Plone","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2016-4043","description":"Chameleon (five.pt) in Plone 5.0rc1 through 5.1a1 allows remote authenticated users to bypass Restricted Python by leveraging permissions to create or edit templates.","status":"published","published":"2017-02-24T20:00:00Z","modified":"2024-08-06T00:17:30.832Z","updated_at":"2026-11-02T14:33:35.149563Z"}],"euvd":[{"id":"EUVD-2017-0090","description":"Chameleon (five.pt) in Plone 5.0rc1 through 5.1a1 allows 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