CVE-2013-4200

high

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.

References

https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2013-4200

http://www.securityfocus.com/archive/1/530787/100/0/threaded

http://www.openwall.com/lists/oss-security/2013/08/01/2

http://plone.org/products/plone/security/advisories/20130618-announcement

http://plone.org/products/plone-hotfix/releases/20130618

Details

Source: Mitre, NVD

Published: 2014-01-21

Updated: 2026-06-16

Risk Information

CVSS v2

Base Score: 5.8

Vector: CVSS2#AV:N/AC:M/Au:N/C:P/I:P/A:N

Severity: Medium

CVSS v3

Base Score: 7.5

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Severity: High

CVSS v4

Base Score: 8.7

Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N

Severity: High

EPSS

EPSS: 0.07523