CVE-2013-4200

Plone 2.1-4.1, 4.2-4.2.5, 4.3-4.3.1 - Open Redirect via Space-Prefixed URL in 'next' Parameter

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2013-4200. PoCs published by Cyrill Bannwart.

AI-analyzed exploit summary The provided text describes a session-hijacking vulnerability in Plone, where an attacker can exploit improper session handling to gain unauthorized access. It references a specific URL path that triggers the vulnerability and includes a note about its prior documentation.

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.

Exploits (1)

exploitdb WRITEUP VERIFIED
by Cyrill Bannwart · textwebappspython
https://www.exploit-db.com/exploits/38738

The provided text describes a session-hijacking vulnerability in Plone, where an attacker can exploit improper session handling to gain unauthorized access. It references a specific URL path that triggers the vulnerability and includes a note about its prior documentation.

Classification
Writeup 90%
Attack Type
Auth Bypass
Complexity
Trivial
Reliability
Theoretical
Target: Plone (version not specified)
No auth needed
Prerequisites: Access to the target Plone instance · Ability to craft a malicious URL
devstral-2 · analyzed Feb 18, 2026 Full analysis →

References (5)

Core 5
Core References
Mailing List mailing-list x_refsource_mlist
http://www.openwall.com/lists/oss-security/2013/08/01/2
Third Party Advisory, VDB Entry mailing-list x_refsource_bugtraq
http://www.securityfocus.com/archive/1/530787/100/0/threaded

Scores

EPSS 0.0534
EPSS Percentile 90.3%

Details

CWE
CWE-264
Status published
Products (47)
plone/plone 2.1
plone/plone 2.1.1
plone/plone 2.1.2
plone/plone 2.1.3
plone/plone 2.1.4
plone/plone 3.0
plone/plone 3.0.1
plone/plone 3.0.2
plone/plone 3.0.3
plone/plone 3.0.4
... and 37 more
Published Jan 21, 2014
Tracked Since Feb 18, 2026