Weakness (CWE)
CWE-863: Incorrect Authorization
The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check.
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-863
4,285 results · Feed
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Medium 4.7
Bulk Update User Roles - Moderately critical - Incorrect authorization - SA-CONTRIB-2026-280
Incorrect Authorization vulnerability in Drupal Bulk Update User Roles allows Forceful Browsing. This issue affects Bulk Update User Roles versions: from 0.0.0 to 1.0.5.
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Medium 5.3
Field Permissions - Moderately critical - Access bypass - SA-CONTRIB-2026-288
Incorrect Authorization vulnerability in Drupal Field Permissions allows Forceful Browsing. This issue affects Field Permissions versions: from 0.0.0 to 1.6.0.
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Medium 5.3
Field Permissions - Moderately critical - Access bypass - SA-CONTRIB-2026-289
Incorrect Authorization vulnerability in Drupal Field Permissions allows Forceful Browsing. This issue affects Field Permissions versions: from 0.0.0 to 1.6.0.
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Medium 4.3
Incorrect authorization in FileSystem in Google Chrome prior to 156.0.8078.79 allowed a remote attacker leveraging soci…
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High 8.8
Incorrect authorization in Blink in Google Chrome prior to 156.0.8078.79 allowed a remote attacker to bypass web origin…
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High 8.8
Incorrect authorization in FileSystem in Google Chrome prior to 156.0.8078.79 allowed a remote attacker leveraging soci…
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High 8.8
Incorrect authorization in Input in Google Chrome prior to 156.0.8078.79 allowed a remote attacker leveraging social en…
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High 8.8
Incorrect authorization in FileSystem in Google Chrome prior to 156.0.8078.79 allowed a remote attacker leveraging soci…
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High 8.8
Incorrect authorization in FileSystem in Google Chrome prior to 156.0.8078.79 allowed a remote attacker leveraging soci…
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Medium 6.5CVE-2026-119200 Public exploit
Nuxt: Dot segments in the request path bypass `server/middleware` path checks and server route rules on page routes
Nuxt is an open-source web development framework for Vue.js. From 4.6.0 until 4.6.3, Nuxt resolves literal or percent-encoded dot segments before rendering a page while Nitro routing, server/middleware checks, and server route rules evaluate the unresolved pa…
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Medium 4.3
Nomad vulnerable to cross-namespace information disclosure in multiple endpoints
HashiCorp Nomad and Nomad Enterprise are vulnerable to cross-namespace authorization bypasses in several read-only API endpoints that may allow an authenticated user with read permissions in one namespace to view information about objects in other namespaces.…
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High 8.5
Incorrect authorization in issuer resolution in AWS Private CA Connector for Kubernetes
Incorrect authorization in the issuer resolution logic in AWS Private CA Connector for Kubernetes (aws-privateca-issuer) before v1.10.1 might allow an authenticated remote user to obtain certificates, including subordinate CA certificates, signed by a cluster…
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Medium 5.4
Broken Function Level Authorization — `postcommand.php` allows execution of poller post-restart commands by non-admin users
Broken Function Level Authorization allows execution of poller post-restart commands by authenticated user
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Medium 4.3
Microsoft Edge for Android Security Feature Bypass Vulnerability
Incorrect authorization in Microsoft Edge for Android allows an unauthorized attacker to bypass a security feature over a network.
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Medium 4.3
Incorrect Authorization in Elastic Cloud Enterprise (ECE) Leading to Unauthorized Modification of Platform Settings
Incorrect Authorization (CWE-863) in Elastic Cloud Enterprise (ECE) can lead to unauthorized modification of platform-level settings via Accessing Functionality Not Properly Constrained by ACLs (CAPEC-1). An authenticated user with read-only access to the pla…
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High 7.5
An issue in Forkyz versionCode 8500000 allows attackers to arbitrarily change another user's storage settings via suppl…
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High 8.4CVE-2026-118669 Public exploit
OAuthLib: Token grants can use attacker-supplied client_id for authorization after authenticating a different client
OAuthLib is an implementation of the OAuth request-signing logic for Python 3.6+. Prior to 4.0.0, the client_credentials and Resource Owner Password Credentials token grant handlers can authenticate request.client as one confidential client while retaining an…
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High 8.6
LangGraph JavaScript custom authentication may permit cross-user Store access
langgraph-api implements the LangGraph API for rapid development and testing. From 0.1.2 until 0.15.0, JavaScript or TypeScript custom authentication Store authorization handlers can return a rewritten namespace that is not carried across the runtime boundary…
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High 7.5CVE-2026-118650 Public exploit
Echo: middleware.Static: `%2F`-encoded path bypasses route/group middleware guarding a statically-served path
Echo is a Go web framework. Prior to 4.16.0 and 5.4.0, a globally mounted middleware.Static instance can interpret an encoded request path differently from Echo's router because the router matches the still-encoded path while the static handler uses the decod…
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Critical 9.1
Echo: Rejected WebSocket upgrades can bypass Echo route-level access controls
Echo is a Go web framework. From 4.0.0 until 4.16.1 and 5.4.1, Echo's Proxy middleware selects a raw tunnel from a client WebSocket upgrade request before verifying that the configured upstream accepted the upgrade. If the upstream rejects the upgrade with an…
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Medium 6.5
ToolJet 3.20.2-lts before 3.20.242-lts Signup Bypass via SignupDisableGuard
ToolJet from 3.20.2-lts before 3.20.242-lts contains an authorization bypass in SignupDisableGuard, which treats the string signup setting 'false' as truthy, so instance-level signup restrictions are not enforced. Unauthenticated attackers can send POST reque…
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High 7.1
n8n before 1.123.85, 2.43.5, and 2.44.1 Credential Permission Check Bypass
n8n before 1.123.85, 2.43.5, and 2.44.1 contains an authorization bypass vulnerability that allows member users to use credentials they cannot access by omitting default node parameters. Attackers can save and run workflows where pre-execution checks skip cre…
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High 7.1
n8n before 1.123.85, 2.43.5, and 2.44.1 Credential Guard Bypass via Execute Sub-workflow
n8n before 1.123.85, 2.43.5, and 2.44.1 contains a credential guard bypass vulnerability that allows editors of shared workflows to use restricted credentials by loading sub-workflows from URLs or local files. Attackers can configure the Execute Sub-workflow …
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High 7.1
n8n before 1.123.85, 2.43.5, and 2.44.1 Credential Permission Check Bypass via Inline Sub-Workflows
n8n before 1.123.85, 2.43.5, and 2.44.1 contains an authorization bypass vulnerability that allows authenticated members to use inaccessible credentials through inline sub-workflow nodes with non-boolean disabled values. Attackers knowing a credential id can …
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Medium 5.4
n8n before 1.123.85, 2.43.5, and 2.44.1 Chat Hub Authorization Bypass
n8n before 1.123.85, 2.43.5, and 2.44.1 contains an authorization bypass vulnerability in Chat Hub that allows chat-only users to register restricted tool types. Users with the global:chatUser role can add and run tools through chat to execute sandboxed code,…
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High 7.7CVE-2026-100105 Public exploit
Alerting contact point authorization bypass via schema downgrade
A user with permission to edit contact points but not their protected fields can change protected settings, such as a contact point's destination URL, by switching an integration to a legacy schema version, which can expose stored credentials and redirect ale…
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Medium 4.3
Royal MCP 1.4.38 - 1.5.9 - Subscriber+ Non-Public Post Disclosure via wp_search Ability
The Royal MCP WordPress plugin before 1.5.10 does not perform object-level or post-type authorisation checks in one of its search tools, allowing authenticated users such as a subscriber to disclose the title and content of non-public entries, including perso…
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Low 3.8
Welcart e-Commerce < 2.12.6 - Author+ Arbitrary Product SKU Update and Disclosure via item_sku_ajax
The Welcart e-Commerce WordPress plugin before 2.12.6 does not properly verify authorization against the targeted product before processing SKU changes, because its capability check is not tied to the product being edited, allowing any authenticated user with…
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High 8.8
Incorrect authorization in Media in Google Chrome prior to 156.0.8078.73 allowed a remote attacker leveraging social en…
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High 7.5
Asterisk: ARI REST-over-WebSocket read-only bypass allows arbitrary module path load and conditional RCE
Asterisk is an open source private branch exchange and telephony toolkit. Prior to Asterisk 20.20.1, 21.12.3, 22.10.1, 23.4.1 and Certified Asterisk 22.8-cert3, an authenticated attacker with read-only permissions for the `Asterisk REST Interface (ARI)` may, …
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Medium 6.8
Model Context Protocol Python SDK: Server bearer-token authentication accepts tokens issued for a different resource server
The Model Context Protocol Python SDK is the official Python SDK for Model Context Protocol servers and clients. From 1.10.0 until 1.30.0 and 2.2.0, server-side bearer authentication configured through AuthSettings with token_verifier accepts a valid token is…
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Medium 4.3
Tanium addressed an improper access controls vulnerability in Comply.
Tanium addressed an improper access controls vulnerability in Comply.
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Medium 5.4
Neko: Authorization bypass in legacy WebRTC input handling
Neko is a a self-hosted virtual browser that runs in Docker and uses WebRTC. From version 3.0.0 until 3.1.5, Neko deployments with legacy mode and session.implicit_hosting enabled incorrectly authorize legacy WebRTC data-channel input because LegacyIsHost() e…
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Critical 9.9
Adobe Campaign Classic (ACC) | Incorrect Authorization (CWE-863)
Adobe Campaign Classic (ACC) is affected by an Incorrect Authorization vulnerability that could result in arbitrary code execution in the context of the current user. A low-privileged attacker could exploit this vulnerability to execute arbitrary code. Exploi…
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High 8.3
A vulnerability allowing a user with the Veeam Backup for Microsoft 365 Administrator role to read arbitrary files on t…
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High 7.5
3Dviewer-Nextcloud: Share password not enforced when streaming 3D models from a public link share
The 3D Viewer for Nextcloud is a comprehensive 3D model viewer application for Nextcloud that supports multiple 3D file formats. In versions 1.7.9 through 3.3.1, the app's public file endpoint performed no share authorization. Anyone who knows a share token c…
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Medium 4.3
URL prefix handling permits API key read-scope bypass in Psono Server
Psono Server CE && EE versions 4.0.33 through 7.2.3 compared the request path for the bulk-secret-read endpoint with a hard-coded unprefixed path. In deployments configured with URL_PREFIX, the comparison failed and the POST request was authorized using write…
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High 7.3
code-projects Simple Content Management System Admin welcome.php authorization
A vulnerability was detected in code-projects Simple Content Management System 1.0. Impacted is an unknown function of the file /web/admin/welcome.php of the component Admin Interface. The manipulation of the argument addnews results in missing authorization.…
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Low 3.3
An authorization issue was addressed with improved state management. This issue is fixed in iOS 26.7.2 and iPadOS 26.7.…
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Medium 5.5
An access issue was addressed with additional sandbox restrictions. This issue is fixed in macOS Golden Gate 27.2, macO…