Weakness (CWE)
CWE-284: Improper Access Control
The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.
How to prevent it (2 mitigations)
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Architecture and Design, Operation
Very carefully manage the setting, management, and handling of privileges. Explicitly manage trust zones in the software.
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Architecture and Design
Compartmentalize the system to have "safe" areas where trust boundaries can be unambiguously drawn. Do not allow sensitive data to go outside of the trust boundary and always be careful when interfacing with a compartment outside of the safe area.
Ensure that appropriate compartmentalization is built into the system design, and the compartmentalization allows for and reinforces privilege separation functionality. Architects and designers should rely on the principle of least privilege to decide the appropriate time to use privileges and the time to drop privileges.
Source: MITRE CWE-284
7 results · Clear filters · Feed
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High 7.8
Windows Update Stack Elevation of Privilege Vulnerability
Improper link resolution before file access ('link following') in Windows Update Stack allows an authorized attacker to elevate privileges locally.
KEV Sep 8, 2026 -
High 7.5
Joomla Extension - joomshaper.com - Unauthenticated access to Helix3 template ajax handler
The Helix3 plugin for Joomla exposes an ajax handler task, that allows unauthenticated attackers to delete arbitrary files, write arbitrary JSON files and update template parameters.
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High 8.8
Windows SMB Client Elevation of Privilege Vulnerability
Improper access control in Windows SMB allows an authorized attacker to elevate privileges over a network.
KEV Oct 20, 2025 -
High 7.4
ColdFusion | Improper Access Control (CWE-284)
ColdFusion versions 2023.6, 2021.12 and earlier are affected by an Improper Access Control vulnerability that could result in arbitrary file system read. An attacker could leverage this vulnerability to access or modify restricted files. Exploitation of this …
KEV Dec 16, 2024 -
High 8.6
Adobe ColdFusion Improper Access Control Arbitrary code execution
Adobe ColdFusion versions 2018 Update 15 (and earlier) and 2021 Update 5 (and earlier) are affected by an Improper Access Control vulnerability that could result in arbitrary code execution in the context of the current user. Exploitation of this issue does n…
KEV Mar 15, 2023 -
High 7.5
Cisco Small Business RV320 and RV325 Routers Information Disclosure Vulnerability
A vulnerability in the web-based management interface of Cisco Small Business RV320 and RV325 Dual Gigabit WAN VPN Routers could allow an unauthenticated, remote attacker to retrieve sensitive information. The vulnerability is due to improper access controls …
KEV Nov 3, 2021 -
High 8.1
Elasticsearch Improper Access Control vulnerability
The default configuration in Elasticsearch before 1.2 enables dynamic scripting, which allows remote attackers to execute arbitrary MVEL expressions and Java code via the source parameter to _search. NOTE: this only violates the vendor's intended security pol…
KEV Mar 25, 2022