{"api_version":"1","generated_at":"2026-04-23T02:58:53+00:00","cve":"CVE-2021-21337","urls":{"html":"https://cve.report/CVE-2021-21337","api":"https://cve.report/api/cve/CVE-2021-21337.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2021-21337","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2021-21337"},"summary":{"title":"CVE-2021-21337","description":"Products.PluggableAuthService is a pluggable Zope authentication and authorization framework. In Products.PluggableAuthService before version 2.6.0 there is an open redirect vulnerability. A maliciously crafted link to the login form and login functionality could redirect the browser to a different website. The problem has been fixed in version 2.6.1. 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In Products.PluggableAuthService before version 2.6.0 there is an open redirect vulnerability. A maliciously crafted link to the login form and login functionality could redirect the browser to a different website. The problem has been fixed in version 2.6.1. Depending on how you have installed Products.PluggableAuthService, you should change the buildout version pin to `2.6.1` and re-run the buildout, or if you used `pip` simply do `pip install \"Products.PluggableAuthService>=2.6.1\"."}]},"impact":{"cvss":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":5.7,"baseSeverity":"MEDIUM","confidentialityImpact":"HIGH","integrityImpact":"NONE","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N","version":"3.1"}},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"CWE-601 URL Redirection to Untrusted Site ('Open Redirect')"}]}]},"references":{"reference_data":[{"name":"https://pypi.org/project/Products.PluggableAuthService/","refsource":"MISC","url":"https://pypi.org/project/Products.PluggableAuthService/"},{"name":"https://github.com/zopefoundation/Products.PluggableAuthService/security/advisories/GHSA-p44j-xrqg-4xrr","refsource":"CONFIRM","url":"https://github.com/zopefoundation/Products.PluggableAuthService/security/advisories/GHSA-p44j-xrqg-4xrr"},{"name":"https://github.com/zopefoundation/Products.PluggableAuthService/commit/7eead067898852ebd3e0f143bc51295928528dfa","refsource":"MISC","url":"https://github.com/zopefoundation/Products.PluggableAuthService/commit/7eead067898852ebd3e0f143bc51295928528dfa"},{"refsource":"MISC","name":"http://packetstormsecurity.com/files/162911/Products.PluggableAuthService-2.6.0-Open-Redirect.html","url":"http://packetstormsecurity.com/files/162911/Products.PluggableAuthService-2.6.0-Open-Redirect.html"}]},"source":{"advisory":"GHSA-p44j-xrqg-4xrr","discovery":"UNKNOWN"}},"nvd":{"publishedDate":"2021-03-08 21:15:00","lastModifiedDate":"2022-01-01 18:02:00","problem_types":["CWE-601"],"metrics":{"baseMetricV3":{"cvssV3":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"CHANGED","confidentialityImpact":"LOW","integrityImpact":"LOW","availabilityImpact":"NONE","baseScore":6.1,"baseSeverity":"MEDIUM"},"exploitabilityScore":2.8,"impactScore":2.7},"baseMetricV2":{"cvssV2":{"version":"2.0","vectorString":"AV:N/AC:M/Au:N/C:P/I:P/A:N","accessVector":"NETWORK","accessComplexity":"MEDIUM","authentication":"NONE","confidentialityImpact":"PARTIAL","integrityImpact":"PARTIAL","availabilityImpact":"NONE","baseScore":5.8},"severity":"MEDIUM","exploitabilityScore":8.6,"impactScore":4.9,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":true}},"configurations":{"CVE_data_version":"4.0","nodes":[{"operator":"OR","children":[],"cpe_match":[{"vulnerable":true,"cpe23Uri":"cpe:2.3:a:zope:products.pluggableauthservice:*:*:*:*:*:*:*:*","versionEndExcluding":"2.6.1","cpe_name":[]}]}]}},"legacy_mitre":{"record":{"CveYear":"2021","CveId":"21337","Ordinal":"195463","Title":"CVE-2021-21337","CVE":"CVE-2021-21337","Year":"2021"},"notes":[{"CveYear":"2021","CveId":"21337","Ordinal":"1","NoteData":"Products.PluggableAuthService is a pluggable Zope authentication and authorization framework. In Products.PluggableAuthService before version 2.6.0 there is an open redirect vulnerability. A maliciously crafted link to the login form and login functionality could redirect the browser to a different website. The problem has been fixed in version 2.6.1. Depending on how you have installed Products.PluggableAuthService, you should change the buildout version pin to `2.6.1` and re-run the buildout, or if you used `pip` simply do `pip install \"Products.PluggableAuthService>=2.6.1\".","Type":"Description","Title":null},{"CveYear":"2021","CveId":"21337","Ordinal":"2","NoteData":"2021-03-08","Type":"Other","Title":"Published"},{"CveYear":"2021","CveId":"21337","Ordinal":"3","NoteData":"2021-06-02","Type":"Other","Title":"Modified"}]}}}