Security advisory

{
  "id": "bce428519d1d0c0379bea44bc2166f5b896b0a2b224fe7bffb0f42d09b79aab2",
  "url": "https://osv.dev/vulnerability/CVE-2021-32811",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-32811",
    "summary": "Zope is an open-source web application server. Zope versions prior to versions 4.6.3 and 5.3 have a remote code execution security issue. In order to be affected, one must use Python 3 for one's Zope deployment, run Zope 4 below version 4.6.3 or Zope 5 below version 5.3, and have the optional `Products.PythonScripts` add-on package installed. By default, one must have the admin-level Zope \"Manager\" role to add or edit Script (Python) objects through the web. Only sites that allow untrusted users to add/edit these scripts through the web are at risk. Zope releases 4.6.3 and 5.3 are not vulnerable. As a workaround, a site administrator can restrict adding/editing Script (Python) objects through the web using the standard Zope user/role permission mechanisms. Untrusted users should not be assigned the Zope Manager role and adding/editing these scripts through the web should be restricted to trusted users only. This is the default configuration in Zope.",
    "evidence": "osv:CVE-2021-32811",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2021-32811",
      "aliases": [
        "CVE-2021-32811",
        "GHSA-g4gq-j4p2-j8fr",
        "PYSEC-2021-368",
        "PYSEC-2021-370"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/zopefoundation/accesscontrol",
              "type": "GIT",
              "events": [
                {
                  "introduced": "4acebba0ffe57e020c847acd84eed276dd9e1696"
                },
                {
                  "fixed": "f11416f52e5a09a521312ea20e78bbb17c7bf647"
                },
                {
                  "introduced": "b0123dcf9ed672444ef2b53802df2f48602fe60b"
                },
                {
                  "fixed": "e4fa02fd6f624283ec586d15d25230fc241d361d"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:zope:accesscontrol:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "4.0"
                      },
                      {
                        "fixed": "4.3"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:zope:accesscontrol:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "5.0"
                      },
                      {
                        "fixed": "5.2"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "5.1",
            "5.0",
            "4.2",
            "4.1",
            "4.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-32811.json"
          }
        },
        {
          "ranges": [
            {
              "repo": "https://github.com/zopefoundation/zope",
              "type": "GIT",
              "events": [
                {
                  "introduced": "3a49c35fc8fc697bf0db747191ac4d9e737b9ccd"
                },
                {
                  "fixed": "67c557a8805e682192ea421848962385ae169e6c"
                },
                {
                  "introduced": "63f7ed59b82e973b6a44cb755837df7f787ff72b"
                },
                {
                  "fixed": "4e17a29856f80c82fdee61eadfda1b42fac92ffe"
                },
                {
                  "fixed": "f72a18dda8e9bf2aedb46168761668464a4be988"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:zope:zope:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "4.0"
                      },
                      {
                        "fixed": "4.6.3"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:zope:zope:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "5.0"
                      },
                      {
                        "fixed": "5.3"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "range": [
                      {
                        "fixed": "f72a18dda8e9bf2aedb46168761668464a4be988"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "4.6.2",
            "4.6.1",
            "5.2.1",
            "4.6",
            "5.2",
            "5.1.2",
            "4.5.5",
            "5.1.1",
            "4.5.4",
            "4.5.3",
            "5.1",
            "4.5.2",
            "5.0",
            "4.5.1",
            "4.5",
            "4.4.4",
            "4.4.3",
            "4.4.2",
            "4.4.1",
            "4.4",
            "4.3",
            "4.2.1",
            "4.2",
            "4.1.3",
            "4.1.2",
            "4.1.1",
            "4.1",
            "4.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-32811.json"
          }
        }
      ],
      "modified": "2026-10-24T10:50:13.209611597Z",
      "provider": "osv",
      "references": [
        "https://github.com/zopefoundation/AccessControl/security/advisories/GHSA-qcx9-j53g-ccgf",
        "https://github.com/zopefoundation/Zope/security/advisories/GHSA-g4gq-j4p2-j8fr",
        "https://github.com/zopefoundation/Zope/commit/f72a18dda8e9bf2aedb46168761668464a4be988"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2021-32811",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 442068,
  "published_at": "2021-08-02T22:15:08.333+00:00"
}