CVE-2013-4196 in Plone
Summary
by MITRE
The object manager implementation (objectmanager.py) in Plone 2.1 through 4.1, 4.2.x through 4.2.5, and 4.3.x through 4.3.1 does not properly restrict access to internal methods, which allows remote attackers to obtain sensitive information via a crafted request.
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Analysis
by VulDB Data Team • 05/07/2026
The vulnerability identified as CVE-2013-4196 resides within the object manager implementation of the Plone content management system, specifically in the objectmanager.py file. This flaw affects versions ranging from Plone 2.1 through 4.1, as well as specific releases in the 4.2.x and 4.3.x series. The issue stems from inadequate access control mechanisms that fail to properly restrict access to internal methods within the system's object management framework. Attackers can exploit this weakness by crafting specially designed requests that bypass intended security boundaries, thereby gaining unauthorized access to sensitive system information.
The technical nature of this vulnerability aligns with CWE-284, which addresses improper access control issues in software systems. The flaw represents a classic case of insufficient privilege checking where internal methods that should remain protected become accessible to unauthenticated or unauthorized users. This misconfiguration allows remote attackers to traverse the system's security controls and access internal components that typically should only be reachable through legitimate administrative or system-level operations. The object manager's implementation fails to properly validate request origins and method access permissions, creating an avenue for information disclosure attacks.
The operational impact of this vulnerability extends beyond simple information leakage, as it provides attackers with insights into the internal structure and functioning of the Plone system. Remote attackers can potentially discover internal system paths, method signatures, and other sensitive metadata that could aid in further exploitation attempts. This information disclosure vulnerability enables adversaries to map the system architecture more effectively, potentially leading to subsequent attacks such as privilege escalation or additional exploitation vectors. The remote nature of the attack means that threat actors can exploit this flaw without requiring physical access to the system or prior authentication credentials.
Security professionals should implement immediate mitigations including upgrading to patched versions of Plone where available, as well as applying proper access control configurations to restrict method exposure. Organizations should also consider implementing network-level controls such as firewalls and intrusion detection systems to monitor for suspicious request patterns. The ATT&CK framework categorizes this vulnerability under the information gathering phase, where adversaries attempt to collect system information that can be leveraged for more sophisticated attacks. Regular security assessments and code reviews focusing on access control mechanisms should be conducted to prevent similar issues from emerging in other components of the system architecture.