VULNERABILITY INTELLIGENCE

CVE-2013-4200

CVSS score5.8 MEDIUM
EPSS probability2.22%
CISA KEVNot currently listed
Published2014-01-21
Last modified2026-06-16
CVSS vectorAV:N/AC:M/Au:N/C:P/I:P/A:N

Description

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.

Primary references