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CWE-284 (访问控制不恰当) — Vulnerability Class 2188

2188 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-2026-12212 hcengineering Huly Platform RPC operations.ts getMailboxSecret access control — Huly Platform 4.3 Medium2026-06-15
CVE-2026-53520 Nezha Monitoring: Authenticated users can claim the dashboard Host through NAT and preempt all dashboard routing — nezha 6.5 Medium2026-06-12
CVE-2026-44783 Discourse: Replying to a whisper lets non-whisperers create staff-only whisper posts — discourse 5.4 Medium2026-06-12
CVE-2026-47182 Frappe: Broken Access Control on Private Files — frappe--2026-06-12
CVE-2026-44976 Frappe: IDOR in update_onboarding_step — frappe--2026-06-12
CVE-2026-44208 Frappe: IDOR in `submit_discussion()` — frappe--2026-06-12
CVE-2026-47200 Nuxt: Route middleware not enforced when rendering `.server.vue` pages via `/__nuxt_island/page_*` — nuxt--2026-06-12
CVE-2026-47366 BBPress ACP权限验证缺陷致提权 — phpBB--2026-06-12
CVE-2026-48610 UniFi OS 设备访问控制漏洞 — UDM 8.1 High2026-06-12
CVE-2026-44249 Netty has an IPv6 Subnet Filter Bypass via Incorrect Comparator Masking — netty 8.1 High2026-06-11
CVE-2026-45177 Idira Secrets Manager SaaS Edge: Authentication Bypass of an internal validation mechanism — Conjur Cloud (Edge Finding only)--2026-06-11
CVE-2026-45178 Idira Secrets Manager Self-Hosted: Improper Access Control in Internal Cluster Endpoints — Conjur Enterprise--2026-06-11
CVE-2026-41856 Spring GraphQL Annotation Detection Vulnerability — Spring for GraphQL 7.5 High2026-06-11
CVE-2026-46695 BoxLite: Permission Bypass in boxlite Allows Modification of Read-Only Files — boxlite 10.0 Critical2026-06-10
CVE-2026-49824 Fission: Cross-namespace Environment reference via unvalidated EnvironmentRef in Function admission webhook — fission 8.5 High2026-06-10
CVE-2026-49823 Fission: Cross-namespace Package read via unvalidated PackageRef in Function admission webhook — fission 7.7 High2026-06-10
CVE-2026-49822 Fission: Cross-namespace event leakage via KubernetesWatchTrigger allows persistent tenant surveillance — fission 7.7 High2026-06-10
CVE-2026-46614 Fission router exposes /fission-function/<ns>/<name> on its public listener, allowing invocation of any function without an HTTPTrigger — fission 9.8 Critical2026-06-10
CVE-2026-20259 Improper Access Control in Splunk Enterprise — Splunk Enterprise 5.5 Medium2026-06-10
CVE-2026-41837 Spring Data REST Querydsl integration exposes Jackson-hidden persistent fields as filter keys — Spring Data REST 5.3 Medium2026-06-09
CVE-2026-41728 Spring Data REST JSON Patch bypasses Jackson read-only property protection on nested objects and collections — Spring Data REST 7.5 High2026-06-09
CVE-2026-47907 Dreamweaver Desktop | Improper Access Control (CWE-284) — Dreamweaver Desktop 8.2 High2026-06-09
CVE-2026-45658 Windows BitLocker Security Feature Bypass Vulnerability — Windows 10 Version 1607 7.8 High2026-06-09
CVE-2026-45654 Secure Boot Security Feature Bypass Vulnerability — Windows 11 Version 24H2 7.9 High2026-06-09
CVE-2026-42829 Windows Administrator Protection Secure Feature Bypass Vulnerability — Windows 11 Version 24H2 7.8 High2026-06-09
CVE-2026-49161 Microsoft PC Manager Security Feature Bypass Vulnerability — Microsoft PC Manager 7.8 High2026-06-09
CVE-2026-48578 Secure Boot Security Feature Bypass Vulnerability — Windows 10 Version 1607 7.9 High2026-06-09
CVE-2026-41092 Microsoft Kinect Elevation of Privilege Vulnerability — Windows 10 Version 1607 7.8 High2026-06-09
CVE-2026-45649 Office for Android Spoofing Vulnerability — Microsoft Excel for Android 7.1 High2026-06-09
CVE-2026-49938 Fortinet FortiPortal 访问控制错误漏洞 — FortiPortal 6.2 Medium2026-06-09

Vulnerabilities classified as CWE-284 (访问控制不恰当) represent 2188 CVEs. The CWE taxonomy describes the weakness; review individual CVEs for product-specific impact.