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CWE-862 (授权机制缺失) — Vulnerability Class 6844

6844 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-2026-13229 Zammad 7.0.1 - Improper authorization in ticket article attachment cloning — Zammad 7.1 High 2026-08-04
CVE-2026-69252 Flowise: Missing authorization on `/api/v1/files` allows low-privileged API keys to list and delete files across workspaces within the same organization — Flowise 7.2 High 2026-08-04
CVE-2026-18650 Missing Authorization Leading to Root Code Execution in HAVELSAN's Liman MYS — Liman MYS 8.8 High 2026-08-04
CVE-2026-17070 Vault Credential Confusion via Authorization Bypass in HAVELSAN's Liman MYS — Liman MYS 8.8 High 2026-08-04
CVE-2026-63248 Eclipse Milo 授权问题漏洞 — Eclipse Milo 6.9 Medium 2026-08-04
CVE-2026-58080 Eclipse Milo 授权问题漏洞 — Eclipse Milo 8.8 High 2026-08-04
CVE-2026-66326 Microsoft Edge (Chromium-based) Remote Code Execution Vulnerability — Microsoft Edge (Chromium-based) 6.5 Medium 2026-08-03
CVE-2026-66311 Microsoft Edge (Chromium-based) Tampering Vulnerability — Microsoft Edge (Chromium-based) 6.2 Medium 2026-08-03
CVE-2026-67616 Camaleon CMS 2.9.2 Missing Authorization via /admin/post_type drafts endpoint — camaleon-cms 4.3 Medium 2026-08-03
CVE-2026-68979 Apache NiFi: Missing Authorization for Components Referenced by Parameter Context Updates — Apache NiFi 5.9 Medium 2026-08-03
CVE-2026-69090 Admidio before 5.0.11 Cross-Organization Role Modification — admidio 4.9 Medium 2026-08-03
CVE-2026-68587 SiYuan before v3.7.3 Information Disclosure via getHeading*Transaction — siyuan 8.6 High 2026-08-03
CVE-2026-68586 SiYuan before v3.7.3 Content Disclosure via getBacklinkDoc — siyuan 8.6 High 2026-08-03
CVE-2026-68585 SiYuan before v3.7.3 Metadata Disclosure via getBlockInfo — siyuan 5.8 Medium 2026-08-03
CVE-2026-28147 WordPress Unlimited Elements For Elementor (Free Widgets, Addons, Templates) plugin <= 2.0.15 - Broken Access Control vulnerability — Unlimited Elements For Elementor (Free Widgets, Addons, Templates) 5.4 Medium 2026-08-03
CVE-2026-20495 MediaTek Chipsets 授权问题漏洞 — MediaTek chipset - - 2026-08-03
CVE-2026-20483 MediaTek Chipsets 授权问题漏洞 — MediaTek chipset - - 2026-08-03
CVE-2026-18573 Keycloak-services: keycloak-services: client access-type policy condition bypass during client update — Red Hat Build of Keycloak 6.5 Medium 2026-08-02
CVE-2026-18571 Keycloak-services: keycloak-services: fgap v2 group assignment bypass during user creation — Red Hat Build of Keycloak 6.6 Medium 2026-08-02
CVE-2026-18570 Keycloak-services: keycloak-services: full-scope-disabled client policy validation bypass via omitted fullscopeallowed — Red Hat Build of Keycloak 5.4 Medium 2026-08-02
CVE-2026-67344 ArcadeDB before 26.7.2 Authentication Bypass via ALTER TYPE — arcadedb 4.3 Medium 2026-08-01
CVE-2026-17580 Advanced Views <= 3.9.1 - Missing Authorization to Authenticated (Subscriber+) Sensitive Information Exposure via 'view-refresh' and 'card-refresh' REST Endpoints — Advanced Views – Display Custom Fields (ACF, Pods, MetaBox), Posts, CPT and Woo Products anywhere in Gutenberg, Elementor, Divi, Beaver… 6.5 Medium 2026-08-01
CVE-2026-11995 Gutena Forms – Contact Form, Survey Form, Feedback Form, Booking Form, and Custom Form Builder <= 1.9.0 - Missing Authorization to Unauthenticated Arbitrary Form Entry Modification/Trash via process_bulk_action() — Gutena Forms – Contact Form, Survey Form, Feedback Form, Booking Form, and Custom Form Builder 5.3 Medium 2026-08-01
CVE-2026-10782 RealHomes Memberships <= 3.0.9 - Missing Authorization to Authenticated (Subscriber+) Membership Payment Bypass via 'ims_add_paypal_recurring_membership' AJAX Action — RealHomes Memberships 4.3 Medium 2026-08-01
CVE-2026-3141 FormGent <= 1.9.2- Missing Authorization to Unauthenticated Arbitrary File Deletion via 'file_token' Parameter — FormGent – Next-Gen AI Form Builder for WordPress with Multi-Step, Quizzes, Payments & More 9.1 Critical 2026-08-01
CVE-2026-45086 Decidim: Forms admin question editor lacks authorization — decidim 5.4 Medium 2026-07-31
CVE-2026-17350 pgAdmin 4: Tool permission bypass via backend routes and Socket.IO handlers — pgAdmin 4 5.4 Medium 2026-07-31
CVE-2026-15227 Missing Authorization Allows Editing of Foreign Reports — Checkmk 5.3 Medium 2026-07-31
CVE-2026-18436 MailerPress <= 1.5.0 - Missing Authorization to Unauthenticated Arbitrary Modification via REST API Endpoint — MailerPress – Newsletter, email marketing & AI automation 5.3 Medium 2026-07-31
CVE-2026-18437 MailPress <= 1.5.0 - Missing Authorization to Unauthenticated Contact Updates — MailerPress – Newsletter, email marketing & AI automation 5.3 Medium 2026-07-31

Vulnerabilities classified as CWE-862 (授权机制缺失) represent 6844 CVEs. The CWE taxonomy describes the weakness; review individual CVEs for product-specific impact.