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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-2026-29061 Gokapi: Privilege escalation via incomplete API-key permission revocation on user rank demotion — Gokapi 5.4 Medium 2026-03-06
CVE-2026-29060 Gokapi: Privilege escalation with auth token — Gokapi 5.0 Medium 2026-03-06
CVE-2026-28682 Gokapi: Data Leak in Upload Status Stream — Gokapi 6.4 Medium 2026-03-06
CVE-2026-25877 Chartbrew: Insecure Direct Object Reference (IDOR) in Chart Operations — chartbrew 6.5 Medium 2026-03-06
CVE-2026-29077 Frappe: Broken Access Control in DocShare — frappe 7.1 High 2026-03-05
CVE-2026-28410 The Graph: Revocable vesting contracts allows early access to locked tokens — contracts 8.1 - 2026-03-05
CVE-2026-28790 OliveTin: Unauthenticated Action Termination via KillAction When Guests Must Login — OliveTin 7.5 High 2026-03-05
CVE-2026-27723 OpenProject: Insufficient access control leads to create Wiki objects belongs unpermitted projects — openproject 4.3 Medium 2026-03-05
CVE-2026-25702 nftables disabled due to incorrect kernel backport — SUSE Linux Enterprise Server 7.3 High 2026-03-05
CVE-2026-20073 Cisco Secure Firewall Adaptive Security Appliance Software and Cisco Secure Firewall Threat Defense Software Access Control List Bypass Vulnerability — Cisco Secure Firewall Adaptive Security Appliance (ASA) Software 5.8 Medium 2026-03-04
CVE-2026-20007 Cisco Secure Firewall Threat Defense Software Snort Deep Inspection Bypass Vulnerability — Cisco Secure Firewall Threat Defense (FTD) Software 5.8 Medium 2026-03-04
CVE-2025-15597 Dataease SQLBot API Endpoint assistant.py access control — SQLBot 6.3 Medium 2026-03-02
CVE-2026-3268 psi-probe PSI Probe Session Attribute RemoveSessAttributeController.java access control — PSI Probe 5.4 Medium 2026-02-26
CVE-2026-28230 In SteVe, any authenticated charger can terminate any other charger's active transaction (missing ownership verification on StopTransaction) — steve 5.7AI Medium AI 2026-02-26
CVE-2026-28215 hoppscotch Vulnerable to Unauthenticated Onboarding Config Takeover — hoppscotch 9.1 Critical 2026-02-26
CVE-2026-27449 Umbraco.Engage.Forms Allows Unauthorized Access to Multiple API Endpoints — Umbraco.Engage.Forms 7.5 High 2026-02-26
CVE-2026-28218 Discourse's Fail-Open Access Control in Data Explorer Plugin Allows Unauthorized SQL Query Execution — discourse 8.8AI High AI 2026-02-26
CVE-2026-27152 DIscourse has DM communication-preference bypass when adding members — discourse 4.3AI Medium AI 2026-02-26
CVE-2026-27975 Ajenti has a potential Remote Code Execution — ajenti 9.8AI Critical AI 2026-02-26
CVE-2026-2356 User Registration & Membership <= 5.1.2 - Insecure Direct Object Reference to Unauthenticated Limited User Deletion — User Registration & Membership – Free & Paid Memberships, Subscriptions, Content Restriction, User Profile, Custom User Registration & Login Builder 5.3 Medium 2026-02-26
CVE-2026-22728 sealed-secrets /v1/rotate can widen sealing scope to cluster-wide via attacker-controlled template annotations — sealed-secrets 4.9 Medium 2026-02-26
CVE-2026-3209 fosrl Pangolin Role verifyApiKeyRoleAccess access control — Pangolin 6.3 Medium 2026-02-25
CVE-2026-27624 Coturn: IPv4-mapped IPv6 (::ffff:0:0/96) bypasses denied-peer-ip ACL — coturn 7.2 High 2026-02-25
CVE-2026-24896 OpenEMR has Broken Access Control that allows unauthorized access to EDI Logs — openemr 6.5 Medium 2026-02-25
CVE-2026-25966 ImageMagick's Security Policy Bypass through config/policy-secure.xml via "fd handler" leads to stdin/stdout access — ImageMagick 5.9 Medium 2026-02-24
CVE-2026-2983 SourceCodester Student Result Management System Bulk Import import_users.php access control — Student Result Management System 7.3 High 2026-02-23
CVE-2026-2938 SourceCodester Student Result Management System update_smtp.php access control — Student Result Management System 7.3 High 2026-02-22
CVE-2026-2852 yeqifu warehouse Sales Endpoint SalesController.java deleteSales access control — warehouse 6.3 Medium 2026-02-20
CVE-2026-2851 yeqifu warehouse Inport Endpoint InportController.java deleteInport access control — warehouse 6.3 Medium 2026-02-20
CVE-2026-2850 yeqifu warehouse Customer Endpoint CustomerController.java deleteCustomer access control — warehouse 6.3 Medium 2026-02-20

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.