{"id":"CVE-2021-21337","details":"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\u003e=2.6.1\".","aliases":["GHSA-p44j-xrqg-4xrr","PYSEC-2021-45"],"modified":"2026-07-09T12:20:30.672404Z","published":"2021-03-08T21:15:16.807Z","references":[{"type":"ADVISORY","url":"https://github.com/zopefoundation/Products.PluggableAuthService/security/advisories/GHSA-p44j-xrqg-4xrr"},{"type":"FIX","url":"https://github.com/zopefoundation/Products.PluggableAuthService/commit/7eead067898852ebd3e0f143bc51295928528dfa"},{"type":"PACKAGE","url":"https://pypi.org/project/Products.PluggableAuthService/"},{"type":"EVIDENCE","url":"http://packetstormsecurity.com/files/162911/Products.PluggableAuthService-2.6.0-Open-Redirect.html"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/zopefoundation/products.pluggableauthservice","events":[{"introduced":"0"},{"fixed":"2c61f577a6486759c340643d9e2efb54abf667f9"},{"fixed":"7eead067898852ebd3e0f143bc51295928528dfa"}],"database_specific":{"cpe":"cpe:2.3:a:zope:products.pluggableauthservice:*:*:*:*:*:*:*:*","extracted_events":[{"introduced":"0"},{"fixed":"2.6.1"}],"source":["CPE_RANGE","REFERENCES"]}}],"versions":["2.6.0","2.5.1","2.4","2.3","2.2.1","2.2","2.1.1","2.1","2.0","2.0b6","2.0b5","2.0b4","2.0b3","1.11.0","2.0b2","2.0b1"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-21337.json"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N"}]}