Weakness (CWE)
CWE-862: Missing Authorization
The product does not perform an authorization check when an actor attempts to access a resource or perform an action.
How to prevent it (5 mitigations)
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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 same role.
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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 to the patient and the patient's doctor [REF-7].
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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].
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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 that are accompanied by an active and authenticated session token associated with a user who has the required permissions to access that page.
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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.
Source: MITRE CWE-862
10,634 results · Feed
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Critical 9.3
Frogman: Multiple read-tier tools expose admin-grade data and arbitrary GraphQL execution
Frogman provides headless PBX control through MCP and HTTP API. Prior to 1.6.3, PERM_READ access was sufficient to call fm_list_managers, fm_list_pinsets, fm_show_context, fm_get_mcp_config, fm_backup_status, fm_whos_calling, fm_run_saved_query, and fm_diagno…
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Medium 4.3
Yamcs: Insecure Direct Object Reference (IDOR) in PacketsApi allows unprivileged users to dump all telemetry packets
Yamcs is a mission control framework. Prior to 5.12.8 and 5.13.2, the PacketsApi.exportPackets endpoint in yamcs-core/src/main/java/org/yamcs/http/api/PacketsApi.java failed to enforce object-level ReadPacket privileges when a request omitted specific packet …
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Medium 4.3CVE-2026-44595 Public exploit
Yamcs: Unauthorized user enumeration via IAM API endpoints
Yamcs is a mission control framework. Prior to 5.12.7, the IAM API endpoints listUsers, getUser, listGroups, and getGroup in yamcs-core did not enforce the required SystemPrivilege.ControlAccess check in yamcs-core/src/main/java/org/yamcs/http/api/IamApi.java…
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Medium 6.5
Microsoft UFO: COMMAND_RESULTS handler creates unowned sessions, allowing authenticated session-squatting denial of service
Microsoft UFO open-source framework for intelligent automation across devices and platforms. Prior to 3.0.7, the COMMAND_RESULTS handler in ufo/server/ws/handler.py called get_or_create_session in ufo/server/services/session_manager.py without owner_client_id…
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Medium 5.4
Perfect Support Ticketing System 1.7 Broken Access Control via Agent Assignment
Perfect Support Ticketing & Document Management System through 1.7 contains a broken access control vulnerability that allows authenticated attackers with Agent-level privileges to manipulate the Support Agent assignment field of tickets by bypassing intended…
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Medium 4.3
Microsoft UFO: Missing Authorization in DEVICE_INFO_REQUEST Allows a DEVICE Client to Read Another Device's system_info
Microsoft UFO open-source framework for intelligent automation across devices and platforms. From 3.0.0 until 3.0.6, a client connected to the UFO WebSocket server as a DEVICE could call DEVICE_INFO_REQUEST with another device's target_id and receive that dev…
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High 8.6
SimpleChat plugin validation endpoints missing authentication and authorization
SimpleChat is a secure AI conversation application with personal and group workspaces for document-grounded interactions. Prior to 0.241.206, several plugin validation routes in application/single_app/plugin_validation_endpoint.py, including `POST /api/admin/…
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Medium 4.3
SimpleChat: Authenticated users can access other users' profile metadata through user IDOR endpoints
SimpleChat is a secure AI conversation application with personal and group workspaces for document-grounded interactions. Prior to 0.241.203, the authenticated GET /api/user/info/<user_id> and GET /api/user/profile-image/<user_id> endpoints in application/sin…
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Medium 4.3
WPBot <= 8.5.6 - Missing Authorization to Authenticated (Subscriber+) Arbitrary RAG Document Re-Sync via ajax_rag_manual_sync() Function
The WPBot – AI ChatBot for Live Support, Lead Generation, AI Services plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 8.5.6. This is due to the plugin not properly verifying that a user is authorized to perform…
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Medium 5.3
WPBot <= 8.5.6 - Missing Authorization to Unauthenticated Arbitrary Chat Session Deletion via 'userid' Parameter
The WPBot – AI ChatBot for Live Support, Lead Generation, AI Services plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 8.5.6. This is due to the plugin not properly verifying that a user is authorized to perform…
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Medium 4.3
Themify Builder <= 7.7.7 - Missing Authorization to Authenticated (Subscriber+) Arbitrary Post Stylesheet Write/Delete via tb_generate_on_fly AJAX Action
The Themify Builder plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 7.7.7. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for authenticat…
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Medium 4.3
The Cache Purger <= 2.3.20 - Missing Authorization to Authenticated (Subscriber+) Arbitrary Log Deletion via 'the_log_purge' Parameter
The The Cache Purger plugin for WordPress is vulnerable to authorization bypass in all versions up to, and including, 2.3.20. This is due to the plugin not properly verifying that a user is authorized to perform an action. This makes it possible for authentic…
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Low 2.7
RTMKit Addons for Elementor < 2.0.9 - Author+ Site-Wide Theme Builder Template Creation and Activation
The RTMKit WordPress plugin before 2.0.9 does not perform a proper capability check on one of its -builder AJAX actions, allowing users with at least the Author role to create and activate a site-wide template that overrides the header, footer or other global…
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Medium 4.3
List category posts <= 0.95.0 - Missing Authorization to Authenticated (Contributor+) Sensitive Information Exposure via 'post_status' Shortcode Attribute
The List category posts plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 0.95.0 via the sanitize_status. This makes it possible for authenticated attackers, with contributor-level access and above, to …
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Medium 4.3
Catch Themes Demo Import <= 3.3 - Missing Authorization to Authenticated (Subscriber+) Single Plugin Installation via 'activate_plugin' Parameter
The Catch Themes Demo Import plugin for WordPress is vulnerable to Missing Authorization in versions up to, and including, 3.3. This is due to the catch_themes_demo_import_activate_plugin() function, hooked on admin_init when the activate_plugin GET parameter…
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Medium 4.3
An issue was discovered in cyrus-imapd in Cyrus IMAP through 3.12.2. LISTRIGHTS os not limited to users with admin acce…
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Medium 6.5
Wekan: `cloneBoard` Meteor method has no authorization check — any user can clone (read) any private board by ID
Wekan is open source kanban built with Meteor. Prior to 9.35, the Wekan cloneBoard Meteor method in models/import.js uses caller-supplied sourceBoardId to build a board export through models/exporter.js without invoking canExport() or checking source-board me…
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High 7.6
Wekan: Missing authorization on OIDC Meteor methods allows privilege escalation to admin
Wekan is open source kanban built with Meteor. Prior to 9.32, Wekan OIDC-related Meteor methods in packages/wekan-oidc/oidc_server.js, server/models/org.js, and server/models/team.js are globally callable without the admin authorization checks used by their n…
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High 7.1
Wekan: Authorization bypass in copyBoard DDP method allows any user to copy private boards
Wekan is open source kanban built with Meteor. Prior to 9.32, the Wekan copyBoard Meteor DDP method in server/publications/boards.js copies a board by caller-supplied board ID without checking this.userId, membership, or admin access. Any authenticated user c…
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Medium 6.5
Wekan: Read-only board members can create/modify/delete Custom Fields (privilege escalation via read-level authz on write ops)
Wekan is open source kanban built with Meteor. Prior to 9.32, Wekan REST handlers in server/models/customFields.js use read-level Authentication.checkBoardAccess instead of write-level Authentication.checkBoardWriteAccess for mutating custom-field routes. A r…
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Medium 5.3
AVideo's Privilege AVideo: Escalation via Unguarded Permission Parameters in signUp API Allows Self-Granting Upload/Stream/Meet Permissions
WWBN AVideo is an open source video platform. Prior to version 29.0, Privilege Escalation is possible through unguarded permission parameters in signUp API, which allows any user who can solve a CAPTCHA to self-grant elevated permissions during account regist…
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Critical 9.9
n8n-MCP: Cross-tenant access to workflow version backups in multi-tenant HTTP deployments
n8n-MCP is an MCP server that provides AI assistants access to n8n node documentation, properties, and operations. Prior to 2.56.1, in HTTP mode with multi-tenancy enabled through ENABLE_MULTI_TENANT=true, n8n-mcp's local workflow version history backups were…
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High 7.6
MCP Python SDK: Experimental task handlers allow any client to access and cancel other clients' tasks
The MCP Python SDK, called mcp on PyPI, is a Python implementation of the Model Context Protocol (MCP). From 1.23.0 until 1.27.2, default handlers installed by server.experimental.enable_tasks() for tasks/list, tasks/get, tasks/result, and tasks/cancel operat…
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Medium 5.9
Cilium: Namespaced HTTPRoutes can redirect traffic to other namespaces
Cilium is a networking, observability, and security solution. Prior to 1.17.17, 1.18.11, and 1.19.5, Cilium clusters using Gateway API allow users with permissions to create or update namespaced HTTPRoutes to mirror HTTP traffic to any Service in any namespac…
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Critical 9.2
Cilium: Sensitive information disclosure and cluster disruption via local Envoy admin socket access
Cilium is a networking, observability, and security solution. Prior to 1.17.14, 1.18.8, and 1.19.2, when Cilium L7 functionality is enabled, the embedded or standalone Envoy instance creates a world-accessible admin.sock on cluster nodes, allowing a local att…
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Medium 5.4
TDengine: KILL SSMIGRATE missing authorization lets low-privilege users interrupt shared-storage migrations
TDengine is a time-series database optimized for Internet of Things devices. Prior to 3.4.1.15, TDengine Enterprise allowed an authenticated low-privilege SQL user to run KILL SSMIGRATE <id> against an active shared-storage migration because mndProcessKillSsM…
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High 7.7
Better Auth: Unauthorized invitation acceptance via unverified email match in organization plugin
Better Auth is an authentication and authorization library for TypeScript. Prior to 1.6.11, and in 1.6.14 and later when invitation IDs can be obtained outside the invited mailbox and requireEmailVerificationOnInvitation: true is not enabled, the organization…
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High 7.1
BloodHound Missing Authorization on Custom Node Management API
BloodHound through 9.4.0, fixed in commit 8f79035, contains a missing authorization vulnerability in the custom-nodes API endpoints that allows any authenticated user to modify the global graph schema. Attackers with valid session tokens can create, update, o…
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Medium —
MantisBT: REST API unauthorized Issue status change
A MantisBT user having *$g_update_bug_threshold* (UPDATER by default) can change an Issue's Status via REST and SOAP API, even if the *$g_set_status_threshold* config is set to a higher level (DEVELOPER by default). ### Impact Unauthorized change in Issue wor…
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Medium 6.5
Apollo: Apollo Portal release endpoint allows cross-application configuration disclosure via releaseId
Apollo is a reliable configuration management system suitable for microservice configuration management scenarios. Prior to 2.5.0, Apollo Portal does not verify application and namespace permissions when an authenticated user requests a release by ID through …
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Medium 5.3
Missing Authorization in ICU Scandinavia Boomerang
ICU Scandinavia Boomerang is vulnerable to a missing authentication flaw in its device receiver endpoints. This allows an unauthenticated remote attacker to read full facility configurations and write unauthorized data to the sensor database. This issue has b…
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Medium 6.5
PraisonAI Platform before 0.1.9 Authorization Bypass via Label Endpoints
PraisonAI Platform before 0.1.9 fails to properly authorize label and issue-label mutations, allowing workspace members to rename and recolor shared labels and add or remove labels on owner-created issues. Attackers with workspace member privileges can exploi…
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High 7.3
PraisonAI before 4.6.78 Authentication Bypass via HTTP-stream
PraisonAI before 4.6.78 exposes the MCP HTTP-stream transport without authentication by default: the CLI --api-key option defaults to None, and the server only enforces Authorization/Bearer checks when an API key is configured. When an operator runs 'praisona…
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High 7.7
Gitops-operator: gitops-operator: missing allowednamespace check in reconcilerhook for clusterrole/role cases enables potential privilege escalation and dos
A flaw was found in the OpenShift GitOps operator. The ClusterRole reconciler does not validate resource ownership when reconciling ClusterRole objects. A namespace-scoped Argo CD instance can trigger deletion of a ClusterRole owned by a cluster-scoped Argo C…
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High 7.3
zhinianboke xianyu-auto-reply Backend User Endpoint users authorization
A vulnerability was found in zhinianboke xianyu-auto-reply up to dcb445ad97816ad65299a7580ee0c8c8f929da84. Affected is an unknown function of the file /api/v1/users/ of the component Backend User Endpoint. Performing a manipulation results in missing authoriz…
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Critical 9.8
Vitest: Exposed Browser Mode API Can Proxy CDP and Overwrite Config Files, Leading to RCE
Vitest is a testing framework powered by Vite. From 3.0.0 until 3.2.5, 4.1.8, and 5.0.0-beta.4, Vitest Browser Mode exposed a cdp() API that forwarded raw Chrome DevTools Protocol methods without being gated by allowWrite or allowExec, allowing a remote clien…
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Critical 9.8CVE-2026-47429 Public exploit
Vitest: Arbitrary file can be read and executed when Vitest UI server is listening
Vitest is a testing framework powered by Vite. Prior to 3.2.5 and 4.1.0, the Vitest UI/API server on Windows used isFileServingAllowed incorrectly for /__vitest_attachment__, allowing \\?\\..\\ path traversal to read files outside the project; exposed API wri…
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High 8.8
Microsoft SharePoint Elevation of Privilege Vulnerability
Missing authorization in Microsoft Office SharePoint allows an authorized attacker to elevate privileges over a network.
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Medium 6.5
Azure CycleCloud Elevation of Privilege Vulnerability
Missing authorization in Azure CycleCloud allows an authorized attacker to elevate privileges over a network.
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High 8.2
Nexus Repository 3 - Authorization Bypass in Component Upload API
An authorization bypass in Nexus Repository 3's component upload API allowed a user with only read/browse privileges on a Swift, Terraform, or Conda hosted repository to upload arbitrary artifacts, bypassing the intended write-permission check.