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CWE-284 (访问控制不恰当) — Vulnerability Class 2060

2060 vulnerabilities classified as CWE-284 (访问控制不恰当). AI Chinese analysis included.

CWE-284 represents a critical security weakness where software fails to properly restrict access to sensitive resources, allowing unauthorized actors to interact with data or functions they should not reach. This flaw typically arises when developers neglect to implement robust authentication or authorization checks, enabling attackers to bypass security controls through direct URL manipulation, token forgery, or privilege escalation techniques. Exploitation often leads to severe consequences, including data breaches, unauthorized system modifications, or complete service disruption. To mitigate this risk, developers must enforce strict access control policies at every layer of the application architecture. This involves implementing comprehensive identity verification, applying the principle of least privilege, and rigorously validating user permissions before granting access to any protected resource, ensuring that only authenticated and authorized users can perform specific actions.

MITRE CWE Description
The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor. Access control involves the use of several protection mechanisms such as: Authentication (proving the identity of an actor) Authorization (ensuring that a given actor can access a resource), and Accountability (tracking of activities that were performed) When any mechanism is not applied or otherwise fails, attackers can compromise the security of the product by gaining privileges, reading sensitive information, executing commands, evading detection, etc. There are two distinct behaviors that can introduce access control weaknesses: Specification: incorrect privileges, permissions, ownership, etc. are explicitly specified for either the user or the resource (for example, setting a password file to be world-writable, or giving administrator capabilities to a guest user). This action could be performed by the program or the administrator. Enforcement: the mechanism contains errors that prevent it from properly enforcing the specified access control requirements (e.g., allowing the user to specify their own privileges, or allowing a syntactically-incorrect ACL to produce insecure settings). This problem occurs within the program itself, in that it does not actually enforce the intended security policy that the administrator specifies.
Common Consequences (1)
OtherVaries by Context
Mitigations (2)
Architecture and Design, OperationVery carefully manage the setting, management, and handling of privileges. Explicitly manage trust zones in the software.
Architecture and DesignCompartmentalize 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 separatio…
Examples (2)
This code temporarily raises the program's privileges to allow creation of a new user folder.
def makeNewUserDir(username): if invalidUsername(username): #avoid CWE-22 and CWE-78 print('Usernames cannot contain invalid characters') return False try: raisePrivileges() os.mkdir('/home/' + username) lowerPrivileges() except OSError: print('Unable to create new user directory for user:' + username) return False return True
Bad · Python
This function runs an arbitrary SQL query on a given database, returning the result of the query.
function runEmployeeQuery($dbName, $name){ mysql_select_db($dbName,$globalDbHandle) or die("Could not open Database".$dbName); //Use a prepared statement to avoid CWE-89 $preparedStatement = $globalDbHandle->prepare('SELECT * FROM employees WHERE name = :name'); $preparedStatement->execute(array(':name' => $name)); return $preparedStatement->fetchAll(); } /.../ $employeeRecord = runEmployeeQuery('EmployeeDB',$_GET['EmployeeName']);
Bad · PHP
CVE IDTitleCVSSSeverityPublished
CVE-2026-33316 Vikunja’s Improper Access Control Enables Bypass of Administrator-Imposed Account Disablement — vikunja 8.1 High2026-03-24
CVE-2026-33484 Langflow has Unauthenticated IDOR on Image Downloads — langflow 7.5 High2026-03-24
CVE-2026-32299 Connect CMS: Information Disclosure Due to Improper Authorization through the Page Content Retrieval Feature — connect-cms 7.5 High2026-03-23
CVE-2026-0898 An arbitrary file-write vulnerability in Pega Browser Extension (PBE) affects Pega Robot Studio developers who are automating Google Chrome and Microsoft Edge using either version 22.1 or R25. — Pega Robot Studio 8.1 -2026-03-23
CVE-2026-4628 Keycloak: org.keycloak.authorization: keycloak: unauthorized resource modification due to improper access control — Red Hat Build of Keycloak 4.3 Medium2026-03-23
CVE-2026-4514 PbootCMS Backend UserController.php access control — PbootCMS 6.3 Medium2026-03-21
CVE-2026-32768 Chall-Manager's invalid NetworkPolicy enables a malicious actor to pivot into another namespace — chall-manager 9.1 -2026-03-20
CVE-2026-33062 free5GC NRF Discovery EncodeGroupId Function Panics on Malformed group-id-list Parameter — nrf 7.5 -2026-03-20
CVE-2026-32769 Fullchain's Invalid NetworkPolicy enables a malicious actor to pivot into another namespace — fullchain 7.3 -2026-03-20
CVE-2026-32761 File Browser has an Authorization Policy Bypass in its Public Share Download Flow — filebrowser 6.5 Medium2026-03-19
CVE-2026-32038 OpenClaw - Sandbox Network Isolation Bypass via docker.network=container Parameter — OpenClaw 9.8 Critical2026-03-19
CVE-2026-33393 Discourse fixes loose hostname matching in spam host allowlist — discourse 4.3 Medium2026-03-19
CVE-2026-32752 FreeScout: Broken Access Control in ThreadPolicy — Any User Can Read/Edit All Customer Messages — freescout--2026-03-19
CVE-2026-32737 Romeo's invalid NetworkPolicy enables a malicious actor to pivot into another namespace — romeo 9.8 -2026-03-18
CVE-2025-41258 LibreChat RAG API Authentication Bypass — LibreChat 8.0 High2026-03-18
CVE-2026-32254 Kube-router Proxy Module Blindly Trusts ExternalIPs/LoadBalancer IPs Enabling Cluster-Wide Traffic Hijacking and DNS DoS — kube-router 7.1 High2026-03-18
CVE-2026-3111 Multiple vulnerabilities on the Educativa Campus — Campus 6.5AIMediumAI2026-03-16
CVE-2026-3110 Multiple vulnerabilities on the Educativa Campus — Campus 5.3AIMediumAI2026-03-16
CVE-2026-4194 D-Link DNS-1550-04 system_mgr.cgi cgi_set_wto access control — DNS-120 7.3 High2026-03-15
CVE-2026-4193 D-Link DIR-823G goahead UpdateClientInfo access control — DIR-823G 7.3 High2026-03-15
CVE-2026-4180 D-Link DIR-816 goahead redirect.asp access control — DIR-816 7.3 High2026-03-15
CVE-2026-32720 Improper Access Control in github.com/ctfer-io/monitoring — monitoring 9.4AICriticalAI2026-03-13
CVE-2026-0977 IBM CICS Transaction Gateway for Multiplatforms Information Disclosure — CICS Transaction Gateway for Multiplatforms 5.1 Medium2026-03-13
CVE-2026-4105 Systemd: systemd: privilege escalation via improper access control in registermachine d-bus method — Red Hat Hardened Images 6.7 Medium2026-03-13
CVE-2026-32138 NEXULEAN API Key Leak — website 8.2 High2026-03-12
CVE-2026-27591 Winter: Privilege escalation by authenticated backend users — winter 10.0 Critical2026-03-11
CVE-2026-32102 OliveTin Unauthorized Action Output Disclosure via EventStream — OliveTin 8.8AIHighAI2026-03-11
CVE-2026-24509 Dell Alienware Command Center 访问控制错误漏洞 — Alienware Command Center (AWCC) 3.6 Low2026-03-11
CVE-2026-31874 Taskosaur Improper Role Assignment via Parameter Manipulation in User Registration — Taskosaur 9.8 Critical2026-03-11
CVE-2026-31872 Parse Server has a protected fields bypass via dot-notation in query and sort — parse-server 5.3AIMediumAI2026-03-11

Vulnerabilities classified as CWE-284 (访问控制不恰当) represent 2060 CVEs. The CWE taxonomy describes the weakness; review individual CVEs for product-specific impact.