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
10,665 results · Feed
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Medium 6.5
MC4WP: Mailchimp for WordPress <= 4.11.1 - Missing Authorization to Unauthenticated Arbitrary Subscription Deletion
The MC4WP: Mailchimp for WordPress plugin for WordPress is vulnerable to Missing Authorization in all versions up to, and including, 4.11.1. This is due to the plugin trusting the `_mc4wp_action` POST parameter without validation, allowing unauthenticated att…
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High 7.2
Umbraco Affected by Vertical Privilege Escalation via Missing Authorization Checks
Umbraco is an ASP.NET CMS. From 15.3.1 to before 16.5.1 and 17.2.2, A privilege escalation vulnerability has been identified in Umbraco CMS. Under certain conditions, authenticated backoffice users with permission to manage users, may be able to elevate their…
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Medium 6.9
Sylius is Missing Authorization in API v2 Add Item Endpoint
Sylius is an Open Source eCommerce Framework on Symfony. The POST /api/v2/shop/orders/{tokenValue}/items endpoint does not verify cart ownership. An unauthenticated attacker can add items to other registered customers' carts by knowing the cart tokenValue. An…
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High 8.8
Parse Server: Classes `_GraphQLConfig` and `_Audience` master key bypass via generic class routes
Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to 9.5.2-alpha.12 and 8.6.25, the _GraphQLConfig and _Audience internal classes can be read, modified, and deleted via the generic /classes/_GraphQLC…
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Medium 5.3
Incorrect Authorization in GitHub Enterprise Server allows access to issue and commit search results without repo scope
An Incorrect Authorization vulnerability was identified in GitHub Enterprise Server that allowed an authenticated user with a classic personal access token (PAT) lacking the repo scope to retrieve issues and commits from private and internal repositories via …
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High 8.8
Session authentication bypass in Coral Server session creation endpoint
Coral Server is open collaboration infrastructure that enables communication, coordination, trust and payments for The Internet of Agents. Prior to 1.1.0, Coral Server allowed the creation of agent sessions through the /api/v1/sessions endpoint without strong…
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High 8.6
Coral Server has insufficient validation of agent identity for SSE connections
Coral Server is open collaboration infrastructure that enables communication, coordination, trust and payments for The Internet of Agents. Prior to 1.1.0, the SSE endpoint (/sse/v1/...) in Coral Server did not strongly validate that a connecting agent was a l…
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Medium 5.3
OneUptime has WhatsApp Resend Verification Authorization Bypass
OneUptime is a solution for monitoring and managing online services. The resend-verification-code endpoint allows any authenticated user to trigger a verification code resend for any UserWhatsApp record by ID. Ownership is not validated (unlike the verify end…
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Critical 10.0
OneUptime has authorization bypass via client‑controlled is-multi-tenant-query header
OneUptime is a solution for monitoring and managing online services. Prior to 10.0.21, a low‑privileged user can bypass authorization and tenant isolation in OneUptime v10.0.20 and earlier by sending a forged is-multi-tenant-query header together with a contr…
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Medium 5.0
Missing Authorization check in SAP NetWeaver Application Server for ABAP
Due to a missing authorization check in SAP NetWeaver Application Server for ABAP, an authenticated attacker with user privileges could read Database Analyzer Log Files via a specific RFC function module. The attacker with the necessary privileges to execute …
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Medium 5.8
Missing Authorization check in SAP S/4HANA HCM Portugal and SAP ERP HCM Portugal
Due to missing authorization check in SAP S/4HANA HCM Portugal and SAP ERP HCM Portugal, a user with high privileges could access sensitive data belonging to another company. This vulnerability has a high impact on confidentiality and does not affect integrit…
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Medium 5.9
Missing Authorization check in SAP Business Warehouse (Service API)
Due to a Missing Authorization Check in SAP Business Warehouse (Service API), an authenticated attacker could perform unauthorized actions via an affected RFC function module. Successful exploitation could enable unauthorized configuration and control changes…
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Medium 5.0
Missing Authorization check in SAP Solution Tools Plug-In (ST-PI)
SAP Solution Tools Plug-In (ST-PI) contains a function module that does not perform the necessary authorization checks for authenticated users, allowing system information to be disclosed. This vulnerability has a low impact on confidentiality and does not af…
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Low 3.5
Missing Authorization check in SAP NetWeaver Application Server for ABAP
Due to missing authorization check in SAP NetWeaver Application Server for ABAP, an authenticated attacker could execute specific ABAP function module and read the sensitive information from database catalog of the ABAP system. This vulnerability has low impa…
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Medium 6.4
Missing Authorization check in SAP NetWeaver Application Server for ABAP
Due to missing authorization check in SAP NetWeaver Application Server for ABAP, an authenticated attacker could execute specific ABAP function module to read, modify or insert entries into the database configuration table of the ABAP system. This unauthorize…
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High 8.1
PX4 Autopilot versions 1.12.x through 1.15.x contain a protection mechanism failure in the "Re-arm Grace Period" logic.…
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High 8.1
PX4 Autopilot versions 1.12.x through 1.15.x contain a logic flaw in the mode switching mechanism. When switching from …
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High 8.6
OneUptime has broken access control in GitHub App installation flow that allows unauthorized project binding
OneUptime is a solution for monitoring and managing online services. Prior to 10.0.19, OneUptime's GitHub App callback trusts attacker-controlled state and installation_id values and updates Project.gitHubAppInstallationId with isRoot: true without validating…
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Medium 5.5
WWBN AVideo - Unauthenticated IDOR - Playlist Information Disclosure
WWBN AVideo is an open source video platform. Prior to 25.0, the /objects/playlistsFromUser.json.php endpoint returns all playlists for any user without requiring authentication or authorization. An unauthenticated attacker can enumerate user IDs and retrieve…
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Critical 9.1
Hitachi Vantara Pentaho Data Integration & Analytics - Missing Authorization
Hitachi Vantara Pentaho Data Integration & Analytics versions before 10.2.0.6, including 9.3.x and 8.3.x, do not restrict Groovy scripts in new PRPT reports published by users, allowing insertion of arbitrary scripts and leading to a RCE.
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Low 2.3
Misskey lacks resource ownership validation
Misskey is an open source, federated social media platform. All Misskey servers running versions 10.93.0 and later, but prior to 2026.3.1, contain a vulnerability that allows importing other users' data due to lack of ownership validation. The impact of this …
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High 7.1
SiYuan Note publish service authorization bypass allows low-privilege users to modify notebook content
SiYuan is a personal knowledge management system. Prior to 3.5.10, a privilege escalation vulnerability exists in the publish service of SiYuan Note that allows low-privilege publish accounts (RoleReader) to modify notebook content via the /api/block/appendHe…
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High 8.7
Budibase Critical Privilege Escalation & IDOR via Missing RBAC on User Role Management (Creator-Role)
Budibase is a low code platform for creating internal tools, workflows, and admin panels. This issue is a combination of Vertical Privilege Escalation and IDOR (Insecure Direct Object Reference) due to missing server-side RBAC checks in the /api/global/users …
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Medium 5.9
Improper access control in user and role restore API endpoints in Devolutions Server 2025.3.11.0 and earlier allows a l…
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Critical 9.1
Unchecked role in wwwupload.cgi
Due to insufficient authorization enforcement, an unauthorized remote attacker can exploit the wwwupload.cgi endpoint to upload and apply arbitrary data. This includes, but is not limited to, contact images, HTTPS certificates, system backups for restoration,…
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Critical 9.1
Unchecked role in wwwupdate.cgi
Due to insufficient authorization enforcement, an unauthorized remote attacker can exploit the wwwupdate.cgi endpoint to upload and apply arbitrary updates.
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Medium 4.3
SourceCodester Computer Laboratory Management System cross-site request forgery
A flaw has been found in SourceCodester Computer Laboratory Management System 1.0. This affects an unknown part. This manipulation causes cross-site request forgery. The attack is possible to be carried out remotely. The exploit has been published and may be …
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Medium 6.3
Parse Server: File metadata endpoint bypasses `beforeFind` / `afterFind` trigger authorization
Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to versions 8.6.9 and 9.5.0-alpha.9, the file metadata endpoint (GET /files/:appId/metadata/:filename) does not enforce beforeFind / afterFind file t…
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Medium 5.3CVE-2026-27796 Scanner template
Homarr: Unauthenticated Information Disclosure (Integration Metadata Leak)
Homarr is an open-source dashboard. Prior to version 1.54.0, the integration.all tRPC endpoint in Homarr is exposed as a publicProcedure, allowing unauthenticated users to retrieve a complete list of configured integrations. This metadata includes sensitive i…
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Medium 4.3
Wallos: Authenticated Missing Authorization Allows Deletion of Other Users’ Uploaded Avatars
Wallos is an open-source, self-hostable personal subscription tracker. Prior to version 4.6.2, Wallos allows an authenticated user to delete avatar files uploaded by other users. The avatar deletion endpoint does not verify that the requested avatar belongs t…
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High 8.8
Flowise: IDOR leading to Account Takeover and Enterprise Feature Bypass via SSO Configuration
Flowise is a drag & drop user interface to build a customized large language model flow. Prior to version 3.0.13, there is an IDOR vulnerability, leading to account takeover and enterprise feature bypass via SSO configuration. This issue has been patched in v…
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Medium 5.3
MDJM Event Management <= 1.7.8.1 - Missing Authorization to Unauthenticated Arbitrary Custom Event Field Deletion
The MDJM Event Management plugin for WordPress is vulnerable to unauthorized data modification due to a missing capability check on the 'custom_fields_controller' function in all versions up to, and including, 1.7.8.1. This makes it possible for unauthenticat…
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Medium 4.3
ProfileGrid <= 5.9.8.1 - Missing Authorization to Authenticated (Subscriber+) Arbitrary Message Deletion
The ProfileGrid – User Profiles, Groups and Communities plugin for WordPress is vulnerable to unauthorized message deletion due to a missing capability check on the pg_delete_msg() function in all versions up to, and including, 5.9.8.1. This is due to the fun…
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Medium 4.3
Winston AI <= 0.0.3 - Missing Authorization to Authenticated (Subscriber+) Arbitrary Plugin Settings Deletion
The HUMN-1 AI Website Scanner & Human Certification by Winston AI plugin for WordPress is vulnerable to unauthorized modification of data due to a missing capability check on the winston_disconnect() function in all versions up to, and including, 0.0.3. This …
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Medium 5.3
Greenshift <= 12.8.3 - Missing Authorization to Unauthenticated Private Reusable Block Disclosure via 'gspb_el_reusable_load'
The Greenshift – animation and page builder blocks plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 12.8.3. This is due to missing authorization and post status validation in the `gspb_el_reusable_lo…
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Medium 6.5
OliveTin: View permission not being checked when returning dashboards
OliveTin gives access to predefined shell commands from a web interface. Prior to version 3000.11.1, an authorization flaw in OliveTin allows authenticated users with view: false permission to enumerate action bindings and metadata via dashboard and API endpo…
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Critical 10.0
Vito: Cross-project privilege escalation in workflow site-creation actions allows unauthorized server modification
Vito is a self-hosted web application that helps manage servers and deploy PHP applications into production servers. Prior to version 3.20.3, a missing authorization check in workflow site-creation actions allows an authenticated attacker with workflow write …
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Medium 6.9
Wekan Exposes Sensitive Data through Lack of Field Filtering During Board Publication
Wekan is an open source kanban tool built with Meteor. In versions 8.31.0 through 8.33, the board composite publication in Wekan publishes all integration data for a board without any field filtering, exposing sensitive fields including webhook URLs and authe…
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Medium 4.3
WordPress Rank Math SEO PRO plugin <= 3.0.95 - Broken Access Control vulnerability
Missing Authorization vulnerability in Rank Math Rank Math SEO PRO allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Rank Math SEO PRO: from n/a through 3.0.95.
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Medium 5.7
SiYuan: Direct SQL Query API accessible to Reader-level users enables unauthorized database access
SiYuan is a personal knowledge management system. Prior to version 3.6.0, the /api/query/sql lets a user run sql directly, but it only checks basic auth, not admin rights, any logged-in user, even readers, can run any sql query on the database. This issue has…