{"id":"CVE-2023-36814","aliases":["EUVD-2023-0209","GHSA-4hpj-8rhv-9x87","PYSEC-2023-113"],"status":"published","title":"zopefoundation's Products.CMFCore vulnerable to unauthenticated denial of service and crash via unchecked use of input with Python's marshal module","description":"Products.CMFCore are the key framework services for the Zope Content Management Framework (CMF). The use of Python's marshal module to handle unchecked input in a public method on `PortalFolder` objects can lead to an unauthenticated denial of service and crash situation. The code in question is exposed by all portal software built on top of `Products.CMFCore`, such as Plone. All deployments are vulnerable. The code has been fixed in `Products.CMFCore` version 3.2.","severity":{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-11","score":0.00723,"percentile":0.54464,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-770"],"published":"2023-07-03T16:48:36Z","modified":"2026-10-28T02:30:49Z","fixes":[{"ecosystem":"PyPI","package":"products-cmfcore","fixed_in":["3.2","2.7.1"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"PyPI","package":"products-cmfcore","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.0"},{"fixed":"3.2"}]}]},{"source":"ghsa","ecosystem":"PyPI","package":"products-cmfcore","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.7.1"}]}]},{"source":"osv","ecosystem":"PyPI","package":"products-cmfcore","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"3.0"},{"fixed":"3.2"}]}],"versions":["3.0","3.1"]},{"source":"osv","ecosystem":"PyPI","package":"products-cmfcore","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.7.1"}]}],"versions":["2.1.1","2.1.2","2.1.2-beta","2.1.3","2.2.0","2.2.0-alpha","2.2.0-beta","2.2.1","2.2.10","2.2.11","2.2.12","2.2.13","2.2.2","2.2.3","2.2.4","2.2.5","2.2.6","2.2.7","2.2.8","2.2.9","2.3.0","2.3.0-beta","2.3.0-beta2","2.3.1","2.4.0","2.4.0b1","2.4.0b2","2.4.0b3","2.4.0b4","2.4.0b5","2.4.0b6","2.4.0b7","2.4.0b8","2.4.1","2.4.2","2.4.3","2.4.4","2.4.5","2.4.6","2.4.7","2.4.8","2.5.0","2.5.1","2.5.2","2.5.3","2.5.4","2.6.0","2.7.0"]},{"source":"osv","ecosystem":"PyPI","package":"products-cmfcore","ranges":[{"type":"GIT","events":[{"introduced":"0"},{"fixed":"40f03f43a60f28ca9485c8ef429efef729be54e5"}]},{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.2"}]}],"versions":["2.1.1","2.1.2","2.1.2-beta","2.1.3","2.2.0","2.2.0-alpha","2.2.0-beta","2.2.1","2.2.10","2.2.11","2.2.12","2.2.13","2.2.2","2.2.3","2.2.4","2.2.5","2.2.6","2.2.7","2.2.8","2.2.9","2.3.0","2.3.0-beta","2.3.0-beta2","2.3.1","2.4.0","2.4.0b1","2.4.0b2","2.4.0b3","2.4.0b4","2.4.0b5","2.4.0b6","2.4.0b7","2.4.0b8","2.4.1","2.4.2","2.4.3","2.4.4","2.4.5","2.4.6","2.4.7","2.4.8","2.5.0","2.5.1","2.5.2","2.5.3","2.5.4","2.6.0","2.7.0","3.0","3.1","2.7.1"]}],"products":[{"vendor":"zope","product":"products.cmfcore"},{"vendor":"zopefoundation","product":"products.cmfcore"}],"references":[{"url":"https://github.com/zopefoundation/Products.CMFCore/security/advisories/GHSA-4hpj-8rhv-9x87","tags":["x_refsource_CONFIRM","x_transferred","Vendor Advisory","advisory","web"]},{"url":"https://github.com/zopefoundation/Products.CMFCore/commit/40f03f43a60f28ca9485c8ef429efef729be54e5","tags":["x_refsource_MISC","x_transferred","Mitigation","Patch","Vendor Advisory","fix","web","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2023-36814","tags":["advisory"]},{"url":"https://github.com/pypa/advisory-database/tree/main/vulns/products-cmfcore/PYSEC-2023-113.yaml","tags":["web"]},{"url":"https://github.com/zopefoundation/Products.CMFCore/commit/c1847a9042abe7965271fa73762dfe091b576de","tags":["web"]},{"url":"https://github.com/advisories/GHSA-4hpj-8rhv-9x87"},{"url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2023/36xxx/CVE-2023-36814.json","tags":["advisory"]},{"url":"https://github.com/zopefoundation/Products.CMFCore","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2023-36814","title":"zopefoundation's Products.CMFCore vulnerable to unauthenticated denial of service and crash via unchecked use of input with Python's marshal module","description":"Products.CMFCore are the key framework services for the Zope Content Management Framework (CMF). The use of Python's marshal module to handle unchecked input in a public method on `PortalFolder` objects can lead to an unauthenticated denial of service and crash situation. The code in question is exposed by all portal software built on top of `Products.CMFCore`, such as Plone. All deployments are vulnerable. The code has been fixed in `Products.CMFCore` version 3.2.","status":"published","published":"2023-07-03T16:48:36.149Z","modified":"2024-11-22T16:42:47.644Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"cna"}],"cwes":["CWE-770"],"updated_at":"2026-11-02T14:35:27.810438Z"}],"euvd":[{"id":"EUVD-2023-0209","description":"Products.CMFCore are the key framework services for the Zope Content Management Framework (CMF). The use of Python's marshal module to handle unchecked input in a public method on `PortalFolder` objects can lead to an unauthenticated denial of service and crash situation. The code in question is exposed by all portal software built on top of `Products.CMFCore`, such as Plone. All deployments are vulnerable. The code has been fixed in `Products.CMFCore` version 3.2.","status":"published","published":"2023-07-03T16:48:36Z","modified":"2024-11-22T16:42:47Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"updated_at":"2026-11-03T00:04:50.64101Z"}],"ghsa":[{"id":"GHSA-4hpj-8rhv-9x87","title":"Products.CMFCore unauthenticated denial of service and crash via unchecked use of input with Python's marshal module","description":"### Impact\nThe use of Python's marshal module to handle unchecked input in a public method on `PortalFolder` objects can lead to an unauthenticated denial of service and crash situation. The code in question is exposed by all portal software built on top of `Products.CMFCore`, such as Plone. All deployments are vulnerable.\n\n### Patches\nThe code has been fixed in `Products.CMFCore` version 3.2.\n\n### Workarounds\nUsers can make the affected `decodeFolderFilter` method unreachable by editing the `PortalFolder.py` module in `Products.CMFCore` by hand and then restarting Zope. Go to line 233 of `PortalFolder.py` and remove both the `@security.public` decorator for `decodeFolderFilter` as well as the method's entire docstring. This is safe because the method is not actually used by current code.\n\n### References\n- Products.CMFCore security advisory [GHSA-4hpj-8rhv-9x87](https://github.com/zopefoundation/Products.CMFCore/security/advisories/GHSA-4hpj-8rhv-9x87)\n\n### Credits\nThanks go to Nicolas VERDIER from onepoint.\n\n### For more information\n\nIf you have any questions or comments about this advisory:\n\n- Open an issue in the [Products.CMFCore issue tracker](https://github.com/zopefoundation/Products.CMFCore/issues)\n- Email us at [security@plone.org](mailto:security@plone.org)","status":"published","published":"2023-07-05T22:42:09Z","modified":"2024-10-14T15:28:52Z","cvss":[{"version":"4.0","score":8.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","level":"high"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-770"],"updated_at":"2026-11-02T14:38:10.696798Z"}],"nvd":[{"id":"CVE-2023-36814","description":"Products.CMFCore are the key framework services for the Zope Content Management Framework (CMF). The use of Python's marshal module to handle unchecked input in a public method on `PortalFolder` objects can lead to an unauthenticated denial of service and crash situation. The code in question is exposed by all portal software built on top of `Products.CMFCore`, such as Plone. All deployments are vulnerable. The code has been fixed in `Products.CMFCore` version 3.2.","status":"published","published":"2023-07-03T17:15:09.393Z","modified":"2026-06-17T06:07:07.987Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"secondary"},{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high","assessor":"primary"}],"cwes":["CWE-770"],"updated_at":"2026-11-02T14:08:14.715708Z"}],"osv":[{"id":"CVE-2023-36814","title":"zopefoundation's Products.CMFCore vulnerable to unauthenticated denial of service and crash via unchecked use of input with Python's marshal module","description":"Products.CMFCore are the key framework services for the Zope Content Management Framework (CMF). The use of Python's marshal module to handle unchecked input in a public method on `PortalFolder` objects can lead to an unauthenticated denial of service and crash situation. The code in question is exposed by all portal software built on top of `Products.CMFCore`, such as Plone. All deployments are vulnerable. The code has been fixed in `Products.CMFCore` version 3.2.","status":"published","published":"2023-07-03T16:48:36.149Z","modified":"2026-10-28T02:30:49.954499829Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"}],"cwes":["CWE-770"],"updated_at":"2026-11-02T15:44:32.510144Z"},{"id":"GHSA-4hpj-8rhv-9x87","title":"Products.CMFCore unauthenticated denial of service and crash via unchecked use of input with Python's marshal module","description":"### Impact\nThe use of Python's marshal module to handle unchecked input in a public method on `PortalFolder` objects can lead to an unauthenticated denial of service and crash situation. The code in question is exposed by all portal software built on top of `Products.CMFCore`, such as Plone. All deployments are vulnerable.\n\n### Patches\nThe code has been fixed in `Products.CMFCore` version 3.2.\n\n### Workarounds\nUsers can make the affected `decodeFolderFilter` method unreachable by editing the `PortalFolder.py` module in `Products.CMFCore` by hand and then restarting Zope. Go to line 233 of `PortalFolder.py` and remove both the `@security.public` decorator for `decodeFolderFilter` as well as the method's entire docstring. This is safe because the method is not actually used by current code.\n\n### References\n- Products.CMFCore security advisory [GHSA-4hpj-8rhv-9x87](https://github.com/zopefoundation/Products.CMFCore/security/advisories/GHSA-4hpj-8rhv-9x87)\n\n### Credits\nThanks go to Nicolas VERDIER from onepoint.\n\n### For more information\n\nIf you have any questions or comments about this advisory:\n\n- Open an issue in the [Products.CMFCore issue tracker](https://github.com/zopefoundation/Products.CMFCore/issues)\n- Email us at [security@plone.org](mailto:security@plone.org)","status":"published","published":"2023-07-05T22:42:09Z","modified":"2026-09-10T03:50:08.494348851Z","cvss":[{"version":"3.1","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","level":"high"},{"version":"4.0","score":8.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","level":"high"}],"cwes":["CWE-770"],"updated_at":"2026-11-02T15:46:37.148947Z"},{"id":"PYSEC-2023-113","description":"Products.CMFCore are the key framework services for the Zope Content Management Framework (CMF). The use of Python's marshal module to handle unchecked input in a public method on `PortalFolder` objects can lead to an unauthenticated denial of service and crash situation. The code in question is exposed by all portal software built on top of `Products.CMFCore`, such as Plone. All deployments are vulnerable. The code has been fixed in `Products.CMFCore` version 3.2.","status":"published","published":"2023-07-03T17:15:00Z","modified":"2025-10-09T08:26:16.655481Z","updated_at":"2026-11-02T15:52:53.837392Z"}]}}