{"id":"GHSA-p44j-xrqg-4xrr","summary":"URL Redirection to Untrusted Site ('Open Redirect') in Products.PluggableAuthService","details":"### Impact\n_What kind of vulnerability is it? Who is impacted?_\n\nOpen redirect vulnerability - a maliciously crafted link to the login form and login functionality could redirect the browser to a different website.\n\n### Patches\n_Has the problem been patched? What versions should users upgrade to?_\n\nThe 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\"`\n\n### Workarounds\n_Is there a way for users to fix or remediate the vulnerability without upgrading?_\n\nThere is no workaround. Users are encouraged to upgrade.\n\n### References\n_Are there any links users can visit to find out more?_\n\n- [GHSA-p44j-xrqg-4xrr](https://github.com/zopefoundation/Products.PluggableAuthService/security/advisories/GHSA-p44j-xrqg-4xrr)\n- [Products.PluggableAuthService on PyPI](https://pypi.org/project/Products.PluggableAuthService/)\n- [OWASP page on open redirects](https://cheatsheetseries.owasp.org/cheatsheets/Unvalidated_Redirects_and_Forwards_Cheat_Sheet.html)\n\n### For more information\nIf you have any questions or comments about this advisory:\n* Open an issue in the [Products.PluggableAuthService issue tracker](https://github.com/zopefoundation/Products.PluggableAuthService/issues)\n* Email us at [security@plone.org](mailto:security@plone.org)","aliases":["CVE-2021-21337","PYSEC-2021-45"],"modified":"2026-07-08T06:27:50.342932580Z","published":"2021-03-08T21:06:23Z","database_specific":{"severity":"MODERATE","github_reviewed":true,"github_reviewed_at":"2021-03-08T21:06:09Z","nvd_published_at":"2021-03-08T21:15:00Z","cwe_ids":["CWE-601"]},"references":[{"type":"WEB","url":"https://github.com/zopefoundation/Products.PluggableAuthService/security/advisories/GHSA-p44j-xrqg-4xrr"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2021-21337"},{"type":"WEB","url":"https://github.com/zopefoundation/Products.PluggableAuthService/commit/7eead067898852ebd3e0f143bc51295928528dfa"},{"type":"WEB","url":"https://github.com/pypa/advisory-database/tree/main/vulns/products-pluggableauthservice/PYSEC-2021-45.yaml"},{"type":"PACKAGE","url":"https://github.com/zopefoundation/Products.PluggableAuthService"},{"type":"WEB","url":"https://pypi.org/project/Products.PluggableAuthService"},{"type":"WEB","url":"http://packetstormsecurity.com/files/162911/Products.PluggableAuthService-2.6.0-Open-Redirect.html"}],"affected":[{"package":{"name":"products-pluggableauthservice","ecosystem":"PyPI","purl":"pkg:pypi/products-pluggableauthservice"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"2.6.1"}]}],"versions":["1.10.0","1.11.0","1.11.1","1.11.2","1.11.3","1.5.2","1.5.2.1","1.5.3","1.5.4","1.5.5","1.6","1.6.1","1.6.2","1.6.3","1.6.4","1.6.5","1.7.0","1.7.0b1","1.7.0b2","1.7.1","1.7.2","1.7.3","1.7.4","1.7.5","1.7.6","1.7.7","1.7.8","1.8.0","1.9.0","2.0","2.0b1","2.0b2","2.0b3","2.0b4","2.0b5","2.0b6","2.1","2.1.1","2.2","2.2.1","2.3","2.4","2.5","2.5.1","2.6.0"],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2021/03/GHSA-p44j-xrqg-4xrr/GHSA-p44j-xrqg-4xrr.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:N/A:N"},{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N"}]}