Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%

CWE-284 (访问控制不恰当) — Vulnerability Class 2612

2612 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)
Other Varies by Context
Mitigations (2)
Architecture and Design, Operation Very carefully manage the setting, management, and handling of privileges. Explicitly manage trust zones in the software.
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 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 ID Title CVSS Severity Published
CVE-2026-82833 Doccano Open Source Annotation Tools for Machine Learning Practitioners Project Example Detail Endpoint examples ExampleDetail access control — Open Source Annotation Tools for Machine Learning Practitioners 6.3 Medium 2026-08-31
CVE-2026-82818 dibo-software diboot Tenant Resource Assignment resource access control — diboot 6.3 Medium 2026-08-31
CVE-2026-82817 dibo-software diboot Tenant Administrator Management API admin access control — diboot 6.3 Medium 2026-08-31
CVE-2026-82815 MegaEase EaseProbe Middleware server.go realIP access control — EaseProbe 7.3 High 2026-08-31
CVE-2026-78076 Joomla Extension - joomshaper.com - Broken Access Control & Missing Authorization in MegaMenu Settings in Helix Ultimate < 2.2.10 — Helix Ultimate extension for Joomla 5.1 Medium 2026-08-31
CVE-2026-78074 Joomla Extension - miniorgange.com - Unauthenticated arbitrary extension deinstallation via various miniOrange extensions — miniOrange Oauth Client (free) extension for Joomla 8.8 High 2026-08-31
CVE-2026-82861 @hulumi/policies before 1.3.2 SecureBucket Parent Spoof Bypass — policies 7.5 High 2026-08-31
CVE-2026-82859 hulumi before v1.3.2 SCP Template Tag-on-Create Bypass — hulumi 9.8 Critical 2026-08-31
CVE-2026-82856 @hulumi/policies before 1.3.2 OIDC Trust Policy Bypass — policies 9.8 Critical 2026-08-31
CVE-2026-82486 SiteServer SSCMS Agent Installation Workflow access control — SSCMS 5.0 Medium 2026-08-30
CVE-2026-55678 Arc: Unauthenticated cluster node admission when `cluster.shared_secret` is unset — arc 6.9 Medium 2026-08-28
CVE-2026-54745 Kubeflow Pipelines: Unauthenticated SSRF and HTTP smuggling in Kubeflow Pipelines frontend /_proxy/ route, bypasses ENABLE_AUTHZ=true — pipelines 10.0 Critical 2026-08-28
CVE-2026-40204 Open-Xchange Dovecot Pro 权限许可和访问控制问题漏洞 — OX Dovecot Pro 3.1 Low 2026-08-28
CVE-2026-78618 Dimension Business Logic Flaw Allows Chained Backend Object Operations — Dimension 6.9 Medium 2026-08-27
CVE-2026-81573 Improper Access Control in Local-Only Configuration Commands — codemeter-runtime 8.6 High 2026-08-27
CVE-2026-77034 Joomla Extension - joomlaeventmanager.net - Unauthenticated article overwrite and force-publish in Joomla Event Manager < 5.0.1 — JEM - Joomla Event Manager extension for Joomla 6.9 Medium 2026-08-27
CVE-2026-61790 Weblate: Team-enforced 2FA is bypassed for global permissions — weblate 4.4 Medium 2026-08-26
CVE-2026-79940 Dell iDRAC9 权限许可和访问控制问题漏洞 — iDRAC9 5.9 Medium 2026-08-26
CVE-2026-54256 Winter: Authenticated IDOR in backend FileUpload widget allows cross-user access to attachment metadata — winter 5.4 Medium 2026-08-26
CVE-2026-77557 Ubiquiti UniFi Protect AI Key 权限许可和访问控制问题漏洞 — UniFi Protect AI Key 9.8 Critical 2026-08-26
CVE-2026-77553 Ubiquiti UniFi Access Application 权限许可和访问控制问题漏洞 — UniFi Access Application 9.9 Critical 2026-08-26
CVE-2026-77551 Ubiquiti UniFi Connect Display Cast Pro 权限许可和访问控制问题漏洞 — UniFi Connect Display Cast Pro 9.0 Critical 2026-08-26
CVE-2026-77541 Ubiquiti UniFi Access Application 权限许可和访问控制问题漏洞 — UniFi Network Application 9.1 Critical 2026-08-26
CVE-2026-77538 Ubiquiti UniFi Network Application 权限许可和访问控制问题漏洞 — UniFi Connect Application 8.2 High 2026-08-26
CVE-2026-77536 Ubiquiti UniFi OS Server 权限许可和访问控制问题漏洞 — UniFi OS Server 9.9 Critical 2026-08-26
CVE-2026-77534 Ubiquiti UniFi OS Server 权限许可和访问控制问题漏洞 — UniFi OS Server 9.9 Critical 2026-08-26
CVE-2026-18664 Wrong interpretation of ACL ranges — NSD 8.2 High 2026-08-26
CVE-2026-58108 Personal access token delete filters on Session columns while deleting from PersonalAccessTokenDB — CodeChecker 1.2 Low 2026-08-26
CVE-2026-65182 Apache Tomcat: Bypass longest prefix security constraint — Apache Tomcat - - 2026-08-25
CVE-2026-79201 Google Chrome 权限许可和访问控制问题漏洞 — Chrome - - 2026-08-25

Vulnerabilities classified as CWE-284 (访问控制不恰当) represent 2612 CVEs. The CWE taxonomy describes the weakness; review individual CVEs for product-specific impact.