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GHSA-56p3-rrp4-2j82

Plone Open Redirection vulnerability via next parameter

Source: GitHub Advisory Database (reviewed) High CVE-2013-4200

Packages

EcosystemPackageAffectedFixed in
PyPI Plone >= 2.1, < 4.1.1 4.1.1
PyPI Plone >= 4.2, < 4.2.6 4.2.6
PyPI Plone >= 4.3, < 4.3.2 4.3.2

Details

As written in the advisory (Markdown source, shown as plain text).

The isURLInPortal method in the URLTool class in in_portal.py in Plone 2.1 through 4.1, 4.2.x through 4.2.5, and 4.3.x through 4.3.1 treats URLs starting with a space as a relative URL, which allows remote attackers to bypass the allow_external_login_sites filtering property, redirect users to arbitrary web sites, and conduct phishing attacks via a space before a URL in the "next" parameter to acl_users/credentials_cookie_auth/require_login.

References

External links from the advisory. They lead to third-party sites.