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

Goal: 1000 CNY · Raised: 1336 CNY

100%

CWE-862 (授权机制缺失) — Vulnerability Class 6886

6886 vulnerabilities classified as CWE-862 (授权机制缺失). AI Chinese analysis included.

CWE-862 represents a critical access control weakness where software fails to verify an actor’s permissions before granting access to resources or executing actions. Attackers typically exploit this flaw by manipulating requests to access sensitive data or perform privileged operations that should be restricted to authorized users. Without proper checks, malicious actors can bypass authentication mechanisms entirely, leading to unauthorized data exposure, modification, or system compromise. Developers mitigate this risk by implementing robust authorization logic at every entry point, ensuring that identity verification is coupled with strict permission validation. This involves checking user roles and access rights against the requested resource before processing any request. By integrating these checks into the application’s core architecture and utilizing established frameworks, teams can prevent unauthorized access and maintain the integrity of their systems against exploitation.

MITRE CWE Description
The product does not perform an authorization check when an actor attempts to access a resource or perform an action.
Common Consequences (4)
Confidentiality Read Application Data, Read Files or Directories
An attacker could read sensitive data, either by reading the data directly from a data store that is not restricted, or by accessing insufficiently-protected, privileged functionality to read the data.
Integrity Modify Application Data, Modify Files or Directories
An attacker could modify sensitive data, either by writing the data directly to a data store that is not restricted, or by accessing insufficiently-protected, privileged functionality to write the data.
Access Control Gain Privileges or Assume Identity, Bypass Protection Mechanism
An attacker could gain privileges by modifying or reading critical data directly, or by accessing privileged functionality.
Availability DoS: Crash, Exit, or Restart, DoS: Resource Consumption (CPU), DoS: Resource Consumption (Memory), DoS: Resource Consumption (Other)
An attacker could gain unauthorized access to resources on the system and excessively consume those resources, leading to a denial of service.
Mitigations (5)
Architecture and Design Divide the product into anonymous, normal, privileged, and administrative areas. Reduce the attack surface by carefully mapping roles with data and functionality. Use role-based access control (RBAC) [REF-229] to enforce the roles at the appropriate boundaries. Note that this approach may not protect against horizontal authorization, i.e., it will not protect a user from attacking others with the …
Architecture and Design Ensure that access control checks are performed related to the business logic. These checks may be different than the access control checks that are applied to more generic resources such as files, connections, processes, memory, and database records. For example, a database may restrict access for medical records to a specific database user, but each record might only be intended to be accessible…
Architecture and Design Use a vetted library or framework that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid. For example, consider using authorization frameworks such as the JAAS Authorization Framework [REF-233] and the OWASP ESAPI Access Control feature [REF-45].
Architecture and Design For web applications, make sure that the access control mechanism is enforced correctly at the server side on every page. Users should not be able to access any unauthorized functionality or information by simply requesting direct access to that page. One way to do this is to ensure that all pages containing sensitive information are not cached, and that all such pages restrict access to requests …
System Configuration, Installation Use the access control capabilities of your operating system and server environment and define your access control lists accordingly. Use a "default deny" policy when defining these ACLs.
Examples (2)
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
The following program could be part of a bulletin board system that allows users to send private messages to each other. This program intends to authenticate the user before deciding whether a private message should be displayed. Assume that LookupMessageObject() ensures that the $id argument is numeric, constructs a filename based on that id, and reads the message details from that file. Also ass…
sub DisplayPrivateMessage { my($id) = @_; my $Message = LookupMessageObject($id); print "From: " . encodeHTML($Message->{from}) . "<br>\n"; print "Subject: " . encodeHTML($Message->{subject}) . "\n"; print "<hr>\n"; print "Body: " . encodeHTML($Message->{body}) . "\n"; } my $q = new CGI; # For purposes of this example, assume that CWE-309 and # CWE-523 do not apply. if (! AuthenticateUser($q->param('username'), $q->param('password'))) { ExitError("invalid username or password"); } my $id = $q->param('id'); DisplayPrivateMessage($id);
Bad · Perl
CVE ID Title CVSS Severity Published
CVE-2026-57521 Bitwarden Server < 2026.5.0 Broken Access Control via PreviewInvoiceController — server 4.3 Medium 2026-06-25
CVE-2026-57520 Bitwarden Server < 2026.5.0 Privilege Escalation via Bulk User Remove Endpoint — server 7.1 High 2026-06-25
CVE-2026-2299 Improper Access Control in Mattermost Google Drive Plugin File Creation Endpoint — Mattermost Google Drive Plugin 4.2 Medium 2026-06-25
CVE-2026-56768 Seahub < 13.0.23 - Authentication Bypass in ShareLinkZipTaskView GET Method — seahub 8.8 High 2026-06-25
CVE-2026-56767 Maxun < 0.0.42 - Cross-Tenant IDOR in Storage and Webhook API Handlers — maxun 8.8 High 2026-06-25
CVE-2026-54027 LibreChat: Image Upload Route Bypasses Agent Permission Check — Incomplete Fix for File Upload Authorization — LibreChat 6.5 Medium 2026-06-25
CVE-2026-54029 LibreChat: IDOR in Message Deletion — Incomplete Fix for CVE-2024-41703 Leaves deleteMessages() Without User Filter — LibreChat 5.3 Medium 2026-06-25
CVE-2026-48941 Joomla Extension - getk2.org - Unauthenticated folder delete in K2 extension for Joomla < 2.26 — K2 extension for Joomla - - 2026-06-25
CVE-2026-54842 WordPress Royal MCP plugin <= 1.4.25 - Broken Access Control vulnerability — Royal MCP 8.1 High 2026-06-25
CVE-2026-57429 WordPress Slim SEO plugin <= 4.6.2 - Broken Access Control vulnerability — Slim SEO 6.5 Medium 2026-06-25
CVE-2026-56023 WordPress UPI QR Code Payment Gateway for WooCommerce plugin <= 1.6.2 - Broken Access Control vulnerability — UPI QR Code Payment Gateway for WooCommerce 5.4 Medium 2026-06-25
CVE-2026-54844 WordPress CheckView Automated Testing plugin <= 2.1.0 - Broken Access Control vulnerability — CheckView Automated Testing 7.5 High 2026-06-25
CVE-2026-54830 WordPress Five Star Restaurant Reservations plugin <= 2.7.19 - Broken Access Control vulnerability — Five Star Restaurant Reservations 7.5 High 2026-06-25
CVE-2026-54828 WordPress Motors plugin <= 1.4.109 - Broken Access Control vulnerability — Motors 7.5 High 2026-06-25
CVE-2026-27366 WordPress MainWP Child plugin <= 6.1.1 - Broken Access Control vulnerability — MainWP Child 7.5 High 2026-06-25
CVE-2026-57619 WordPress Elementor Website Builder plugin <= 4.1.3 - Sensitive Data Exposure vulnerability — Elementor Website Builder 6.5 Medium 2026-06-25
CVE-2026-2238 Missing Authorization in GitLab — GitLab 5.3 Medium 2026-06-25
CVE-2026-3176 Missing Authorization in GitLab — GitLab 3.1 Low 2026-06-25
CVE-2026-55762 Rocket.Chat: Any Authenticated User Can Permanently Deregister Workspace from Rocket.Chat Cloud via Unprotected `/api/v1/fingerprint` Endpoint — Rocket.Chat 8.1 High 2026-06-24
CVE-2026-45677 Rocket.Chat: Lack of SAML Signature Check During Logout Could Lead To DoS — Rocket.Chat - - 2026-06-24
CVE-2026-7761 Ultimate Member <= 2.11.4 - Authenticated (Contributor+) Account Takeover via Password Reset Link Disclosure — Ultimate Member – User Profile, Registration, Login, Member Directory, Content Restriction & Membership Plugin 8.8 High 2026-06-24
CVE-2026-8690 RentMy Real-Time Rental Management Plugin <= 4.0.4.1 - Missing Authorization to Unauthenticated Settings Update via rentmy_cdn_request AJAX Action — RentMy Real-Time Rental Management Plugin 5.3 Medium 2026-06-24
CVE-2026-9178 WP Forms Connector <= 1.8 - Missing Authorization to Unauthenticated Information Exposure via 'user/list' REST Endpoint — WP Forms Connector 7.5 High 2026-06-24
CVE-2026-8688 Advance Nav Menu Manager <= 1.3 - Missing Authorization to Authenticated (Subscriber+) Nav Menu Item Modification via anmm_save_menu_data AJAX Action — Advance Nav Menu Manager 4.3 Medium 2026-06-24
CVE-2026-9172 Devs Accounting <= 1.2.0 - Missing Authorization to Unauthenticated Account Deletion via /delete-account/ REST Endpoint — Devs Accounting – Simple Accounting and Invoicing Solution 5.3 Medium 2026-06-24
CVE-2026-9184 24liveblog <= 2.2 - Missing Authorization to Authenticated (Author+) Settings Modification via update_lb24_token AJAX action — 24liveblog – live blog tool 4.3 Medium 2026-06-24
CVE-2026-8617 SearchPlus <= 1.7.1 - Missing Authorization to Unauthenticated Settings Modification and Deletion via searchplus_save_token & searchplus_reset_token AJAX Actions — SearchPlus 5.3 Medium 2026-06-24
CVE-2026-9616 Generate Security.txt <= 1.0.12 - Missing Authorization to Authenticated (Subscriber+) Security.txt Deletion via delete_securitytxt AJAX Action — Generate Security.txt 4.3 Medium 2026-06-24
CVE-2026-8614 Assistio <= 1.1.2 - Missing Authorization to Authenticated (Subscriber+) Plugin Settings Deletion via assistio_plugin_delete_assistio_settings AJAX Action — Assistio 4.3 Medium 2026-06-24
CVE-2026-7617 Secufor_OAuth <= 1.0.7 - Missing Authorization to Unauthenticated Account Logout via 'secuforoauth_unregister_action' AJAX Action — Secufor_OAuth 5.3 Medium 2026-06-24

Vulnerabilities classified as CWE-862 (授权机制缺失) represent 6886 CVEs. The CWE taxonomy describes the weakness; review individual CVEs for product-specific impact.