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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Critical 9.3
Sim Studio AI - Unauthenticated OAuth Token Theft
On SimStudio version below to 0.5.74, the `/api/auth/oauth/token` endpoint contains a code path that bypasses all authorization checks when provided with `credentialAccountUserId` and `providerId` parameters. An unauthenticated attacker can retrieve OAuth acc…
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Critical 9.8
Sim Studio AI - MongoDB SSRF and Arbitrary Document Deletion
On SimStudio version below to 0.5.74, the MongoDB tool endpoints accept arbitrary connection parameters from the caller without authentication or host restrictions. An attacker can leverage these endpoints to connect to any reachable MongoDB instance and perf…
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Medium 6.5
wpForo Forum < 2.4.16 Privilege Escalation via Role Synchronization Handler
wpForo Forum 2.4.14 contains a missing capability check vulnerability that allows authenticated users to trigger bulk wpForo usergroup reassignment via the wpforo_synch_roles AJAX handler. Attackers access the usergroups admin page, accessible to any authenti…
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Medium 5.4
wpForo Forum 2.4.14 Missing Authorization via Topic Management Form Handlers
wpForo Forum 2.4.14 contains a missing authorization vulnerability that allows authenticated subscribers to move, merge, or split any forum topic via the topic_move, topic_merge, and topic_split form action handlers. Attackers with a valid form nonce can reor…
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Medium 4.3
wpForo Forum 2.4.14 Missing Authorization via Topic Close AJAX Handler
wpForo Forum 2.4.14 contains a missing authorization vulnerability that allows authenticated subscribers to close or reopen any forum topic via the wpforo_close_ajax handler. Attackers submit a valid nonce with an arbitrary topic ID to bypass the moderator pe…
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Medium 4.3
wpForo Forum 2.4.14 Missing Authorization via Post Approval AJAX Handler
wpForo Forum 2.4.14 contains a missing authorization vulnerability that allows authenticated subscribers to approve or unapprove any forum post via the wpforo_approve_ajax AJAX handler. Attackers exploit the nonce-only check by submitting a valid nonce with a…
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Medium 6.5
Statamic's missing authorization allows access to email addresses
Statmatic is a Laravel and Git powered content management system (CMS). Prior to versions 5.73.11 and 6.4.0, user email addresses were included in responses from the user fieldtype’s data endpoint for control panel users who did not have the "view users" perm…
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Critical 9.3CVE-2026-28515 Public exploit
openDCIM <= 23.04 Missing Authorization in install.php
openDCIM version 23.04, through commit 4467e9c4, contains a missing authorization vulnerability in install.php and container-install.php. The installer and upgrade handler expose LDAP configuration functionality without enforcing application role checks. Any …
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Critical 9.8
WeGIA lacks authentication verification in adicionar_tipo_docs_atendido.php
WeGIA is a web manager for charitable institutions. Prior to version 3.6.5, the script in adicionar_tipo_docs_atendido.php does not go through the project's central controller and does not have its own authentication and permission checks. A malicious user co…
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High 7.5
phpMyFAQ Allows Unauthenticated Account Creation via WebAuthn Prepare Endpoint
phpMyFAQ is an open source FAQ web application. Prior to version 4.0.18, the WebAuthn prepare endpoint (`/api/webauthn/prepare`) creates new active user accounts without any authentication, CSRF protection, captcha, or configuration checks. This allows unauth…
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Medium 5.4
Seerr missing authentication on pushSubscription endpoints
Seerr is an open-source media request and discovery manager for Jellyfin, Plex, and Emby. A missing authorization vulnerability has been identified in the application starting in version 2.7.0 and prior to version 3.1.0. It allows authenticated users to acces…
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High 7.5
Initiative Allows Unauthenticated Access to Uploaded Documents via Public /uploads/ Endpoint
Initiative is a self-hosted project management platform. An access control vulnerability exists in Initiative versions prior to 0.32.2 where uploaded documents are served from a publicly accessible /uploads/ directory without any authentication or authorizati…
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Medium 6.5
IDOR in GraphQL userCollection Query Exposes Other Users' Private Collections
hoppscotch is an open source API development ecosystem. Prior to version 2026.2.0, the `userCollection` GraphQL query accepts an arbitrary collection ID and returns the full collection data — including title, type, and the serialized `data` field containing H…
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Medium 5.7
ActualBudget missing authorization in sync endpoints allows cross-user budget file access in multi-user mode
Actual is a local-first personal finance tool. Prior to version 26.2.1, in multi-user mode (OpenID), the sync API endpoints (`/sync/*`) don't verify that the authenticated user owns or has access to the file being operated on. Any authenticated user can read,…
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Medium 4.3
Weblate: Missing access control for the AddonViewSet API exposes all addon configurations
Weblate is a web based localization tool. Prior to version 5.16.1, the REST API's `AddonViewSet` (`weblate/api/views.py`, line 2831) uses `queryset = Addon.objects.all()` without overriding `get_queryset()` to scope results by user permissions. This allows an…
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Low 1.3
Discourse doesn't validate destination topic when moving posts
Discourse is an open source discussion platform. Prior to versions 2025.12.2, 2026.1.1, and 2026.2.0, the `move_posts` action only checked `can_move_posts?` on the source topic but never validated write permissions on the destination topic. This allowed TL4 u…
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Low 1.3
Discourse doesn't ensure guardian check when creating QueryGroupBookmark
Discourse is an open source discussion platform. Prior to versions 2025.12.2, 2026.1.1, and 2026.2.0, missing `validate_before_create` authorization in Data Explorer's `QueryGroupBookmarkable` allows any logged-in user to create bookmarks for query groups the…
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Medium 6.9
Discourse: Poll voters endpoint lacked post visibility checks
Discourse is an open source discussion platform. Prior to versions 2025.12.2, 2026.1.1, and 2026.2.0, the voters endpoint in the poll plugin lacked post visibility checks which allowed unauthorized access to voters details of polls in any post. Versions 2025.…
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None 0.0
Discourse: TL4 users are able to change status of restricted topics
Discourse is an open source discussion platform. Prior to versions 2025.12.2, 2026.1.1, and 2026.2.0, TL4 users are able to close, archive and pin topics in private categories they don't have access to. Versions 2025.12.2, 2026.1.1, and 2026.2.0 patch the iss…
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Medium 5.4
DIscourse's discourse-policy plugin lacks post access check
Discourse is an open source discussion platform. Prior to versions 2025.12.2, 2026.1.1, and 2026.2.0, `discourse-policy` plugin allows any authenticated user to interact with policies on posts they do not have permission to view. The `PolicyController` loads …
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Low 1.7
Fleet: Unauthenticated Android device disenrollment vulnerability via Pub/Sub endpoint
Fleet is open source device management software. In versions prior to 4.80.1, a vulnerability in Fleet’s Android MDM Pub/Sub handling could allow unauthenticated requests to trigger device unenrollment events. This may result in unauthorized removal of indivi…
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Medium 4.9
LiveHelperChat has department-level authorization bypass in holdaction, blockuser, and transferchat endpoints
Live Helper Chat is an open-source application that enables live support websites. In versions up to and including 4.52, three chat action endpoints (holdaction.php, blockuser.php, and transferchat.php) load chat objects by ID without calling `erLhcoreClassCh…
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High 8.2
ZITADEL Users Can Self-Verify Email/Phone via UpdateHumanUser API
ZITADEL is an open source identity management platform. Prior to versions 4.11.1 and 3.4.7, a vulnerability in Zitadel's self-management capability allowed users to mark their email and phone as verified without going through an actual verification process. T…
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Medium 4.3
Missing Authorization in GitLab
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 17.7 before 18.7.5, 18.8 before 18.8.5, and 18.9 before 18.9.1 that could have allowed an unauthorized user with Developer-role permissions to set pipeline variables for manually trigg…
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High 8.1
OpenEMR's Document and Insurance REST Endpoints Skip ACL
OpenEMR is a free and open source electronic health records and medical practice management application. Prior to version 8.0.0, the REST API route table in `apis/routes/_rest_routes_standard.inc.php` does not call `RestConfig::request_authorization_check()` …
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Low 3.1
Chia Blockchain send_transaction cross-site request forgery
A vulnerability was detected in Chia Blockchain 2.1.0. Impacted is an unknown function of the file /send_transaction. The manipulation results in cross-site request forgery. The attack may be performed from remote. The attack requires a high level of complexi…
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Medium 4.3
In JetBrains TeamCity before 2025.11.3 missing authorization allowed project developers to add parameters to build conf…
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High 8.8
In JetBrains YouTrack before 2025.3.121962 apps were able to send requests to the app permissions endpoint
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Medium 5.5
Udisks: missing authorization check allows unprivileged users to back up luks headers via udisks d-bus api
A flaw was found in the udisks storage management daemon that allows unprivileged users to back up LUKS encryption headers without authorization. The issue occurs because a privileged D-Bus method responsible for exporting encryption metadata does not perform…
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High 7.1
Udisks: missing authorization check allows unprivileged users to restore luks headers via udisks d-bus api
A flaw was found in the udisks storage management daemon that exposes a privileged D-Bus API for restoring LUKS encryption headers without proper authorization checks. The issue allows a local unprivileged user to instruct the root-owned udisks daemon to over…
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Medium 4.3
Post Duplicator <= 3.0.8 - Missing Authorization to Authenticated (Contributor+) Protected Post Meta Insertion via 'customMetaData' Parameter
The Post Duplicator plugin for WordPress is vulnerable to unauthorized arbitrary protected post meta insertion in all versions up to, and including, 3.0.8. This is due to the `duplicate_post()` function in `includes/api.php` using `$wpdb->insert()` directly t…
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High 7.5
WPGSI: Spreadsheet Integration <= 3.8.3 - Missing Authorization to Unauthenticated Arbitrary Post Creation and Deletion via Forged Base64 Token
The WPGSI: Spreadsheet Integration plugin for WordPress is vulnerable to unauthorized modification and loss of data due to missing capability checks and an insecure authentication mechanism on the `wpgsi_callBackFuncAccept` and `wpgsi_callBackFuncUpdate` REST…
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Critical 9.3
Parse Dashboard Missing Authorization on Agent Endpoint
Parse Dashboard is a standalone dashboard for managing Parse Server apps. In versions 7.3.0-alpha.42 through 9.0.0-alpha.7, the AI Agent API endpoint (`POST /apps/:appId/agent`) does not enforce authorization. Authenticated users scoped to specific apps can a…
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High 8.8
OpenEMR has Broken Access Control in Procedures Configuration
OpenEMR is a free and open source electronic health records and medical practice management application. Prior to version 8.0.0, a Broken Access Control vulnerability exists in the OpenEMR order types management system, allowing low-privilege users (such as R…
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Medium 6.5
OpenEMR has Broken Access Control in Report/Clients/Message List CSV Export
OpenEMR is a free and open source electronic health records and medical practice management application. Prior to version 8.0.0, the OpenEMR application is vulnerable to an access control flaw that allows low-privileged users, such as receptionists, to export…
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High 8.8CVE-2026-22765 Public exploit
Dell Wyse Management Suite, versions prior to WMS 5.5, contain a Missing Authorization vulnerability. A low privileged …
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Medium 4.8
Mastodon may allow unconfirmed FASP to make subscriptions
Mastodon is a free, open-source social network server based on ActivityPub. FASP registration requires manual approval by an administrator. In versions 4.4.0 through 4.4.13 and 4.5.0 through 4.5.6, actions performed by a FASP to subscribe to account/content l…
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Medium 4.8
LearnPress Export Import <= 4.1.0 - Missing Authentication to Unauthenticated Migrated Course Deletion
The LearnPress Export Import – WordPress extension for LearnPress plugin for WordPress is vulnerable to unauthorized loss of data due to a missing capability check on the 'delete_migrated_data' function in all versions up to, and including, 4.1.0. This makes …
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Medium 6.5
weMail <= 2.0.7 - Missing Authorization to Unauthenticated Form Deletion
The weMail - Email Marketing, Lead Generation, Optin Forms, Email Newsletters, A/B Testing, and Automation plugin for WordPress is vulnerable to unauthorized form deletion in all versions up to, and including, 2.0.7. This is due to the `Forms::permission()` c…
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Low 2.3
OpenClaw Discord moderation authorization used untrusted sender identity in tool-driven flows
OpenClaw is a personal AI assistant. In versions 2026.2.17 and below, the Discord moderation action handling (timeout, kick, ban) uses sender identity from request parameters in tool-driven flows, instead of trusted runtime sender context. In setups where Dis…