CVE-2013-4200

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.

How to fix CVE-2013-4200

To remediate CVE-2013-4200, upgrade the affected package to a fixed version below.

• —upgrade to 4.1.1 or later
• —upgrade to 4.1.1 or later

Is CVE-2013-4200 being exploited?

Moderate — EPSS is 5.3%. Track this CVE but it's not at the top of the prioritisation list.

Affected packages (2)

• >= 2.1, < 4.1.1
• >= 2.1, < 4.1.1, >= 4.2, < 4.2.6, >= 4.3, < 4.3.2

CVSS scores

References (9)

• ADVISORYgithub.com/advisories/GHSA-56p3-rrp4-2j82
• ADVISORYnvd.nist.gov/vuln/detail/CVE-2013-4200
• PATCHgithub.com/plone/Plone
• WEBplone.org/products/plone-hotfix/releases/20130618
• WEB