Weakness (CWE)
CWE-306: Missing Authentication for Critical Functionality
The product does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources.
How to prevent it (5 mitigations)
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Architecture and Design
Divide the software into anonymous, normal, privileged, and administrative areas. Identify which of these areas require a proven user identity, and use a centralized authentication capability.
Identify all potential communication channels, or other means of interaction with the software, to ensure that all channels are appropriately protected, including those channels that are assumed to be accessible only by authorized parties. Developers sometimes perform authentication at the primary channel, but open up a secondary channel that is assumed to be private. For example, a login mechanism may be listening on one network port, but after successful authentication, it may open up a second port where it waits for the connection, but avoids authentication because it assumes that only the authenticated party will connect to the port.
In general, if the software or protocol allows a single session or user state to persist across multiple connections or channels, authentication and appropriate credential management need to be used throughout.
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Architecture and Design
For any security checks that are performed on the client side, ensure that these checks are duplicated on the server side, in order to avoid CWE-602. Attackers can bypass the client-side checks by modifying values after the checks have been performed, or by changing the client to remove the client-side checks entirely. Then, these modified values would be submitted to the server.
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Architecture and Design
Where possible, avoid implementing custom, "grow-your-own" authentication routines and consider using authentication capabilities as provided by the surrounding framework, operating system, or environment. These capabilities may avoid common weaknesses that are unique to authentication; support automatic auditing and tracking; and make it easier to provide a clear separation between authentication tasks and authorization tasks.
In environments such as the World Wide Web, the line between authentication and authorization is sometimes blurred. If custom authentication routines are required instead of those provided by the server, then these routines must be applied to every single page, since these pages could be requested directly.
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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 libraries with authentication capabilities such as OpenSSL or the ESAPI Authenticator [REF-45].
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Implementation, System Configuration, Operation
When storing data in the cloud (e.g., S3 buckets, Azure blobs, Google Cloud Storage, etc.), use the provider's controls to require strong authentication for users who should be allowed to access the data [REF-1297] [REF-1298] [REF-1302].
Source: MITRE CWE-306
1,261 results · Clear filters · Feed
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High 8.2
Vulnerability in the Oracle Hyperion Financial Management product of Oracle Hyperion (component: Security). The support…
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High 8.2
Vulnerability in the Oracle Hyperion Financial Management product of Oracle Hyperion (component: Security). The support…
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High 7.4
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High 8.2
Vulnerability in the Oracle Hyperion Financial Management product of Oracle Hyperion (component: Security). The support…
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High 8.2
Vulnerability in the Oracle Mobile Application Server product of Oracle E-Business Suite (component: MWA Terminal Serve…
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High 8.2
Vulnerability in the Oracle Utilities Network Management System product of Oracle Utilities Applications (component: Sy…
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High 7.4
Vulnerability in the Oracle Web Services Manager product of Oracle Fusion Middleware (component: Web Services Security)…
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High 8.6
Vulnerability in the Oracle BI Publisher product of Oracle Analytics (component: BI Platform Security). Supported versi…
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High 8.2
Vulnerability in the Oracle JDeveloper product of Oracle Fusion Middleware (component: Resource Catalog Services). Supp…
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High 7.0
Vulnerability in the Oracle Commerce Guided Search / Oracle Commerce Experience Manager product of Oracle Commerce (com…
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High 7.5
Vulnerability in the Oracle Applications Manager product of Oracle E-Business Suite (component: Command Line - RapidClo…
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High 7.5
Dell Wyse Management Suite, versions prior to 2605.0.3.683, contain a Missing Authentication for Critical Function vuln…
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High 8.5
Concrete CMS below 9.5.4 allows privilege escalation because adding users and assigning groups do not require additional identity verification
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High 8.8
Yeger: Unauthenticated Network-Exposed Turborepo Task Execution via /api/run
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High 7.5
lamp-cloud through 5.10.0 Missing Authentication for JVM Properties Endpoint
lamp-cloud through 5.10.0 whitelists the path pattern /*/anno/** for anonymous access, allowing unauthenticated attackers to read the server's full JVM system property map. Attackers can send POST requests to /defGenProject/anno/getProperties to retrieve sens…
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High 8.3
PraisonAI ToolsMCPServer legacy SSE transport accepts attacker Host/Origin and exposes registered tools
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High 8.2
Missing authentication in Ecommerce Template checkout session endpoint allows unauthenticated disclosure of buyer PII
Missing Authentication for Critical Function (CWE-306) in the checkout session lookup handler (src/app/api/stripe/checkout_sessions/route.ts), exposed at GET /api/stripe/checkout_sessions, in MarcosCamara01 Ecommerce Template before commit 91e273c allows a re…
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High 7.4
Envoy Gateway: xDS Control Plane Information Disclosure when Envoy Gateway operates in GatewayNamespaceMode
Envoy Gateway is an open source project for managing Envoy Proxy as a standalone or Kubernetes-based application gateway. Prior to 1.7.4 and 1.8.1, the xDS gRPC server in GatewayNamespaceMode, configured through provider.kubernetes.deploy.type=GatewayNamespac…
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High 8.2
Krayin CRM through 2.2.6 Unauthenticated Email Injection via inbound-parse
Krayin CRM through 2.2.6 exposes the POST /admin/mail/inbound-parse endpoint without authentication, allowing unauthenticated attackers to inject arbitrary emails into the CRM inbox. Attackers can supply crafted RFC 2822 messages with forged sender informatio…
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High 8.6
LangBot through 0.4.17 Unauthenticated Plugin Registration via WebSocket
LangBot's plugin runtime (pip package langbot_plugin) through 0.4.17 starts a debug WebSocket server on 0.0.0.0:5401 (/plugin/ws) whose authentication is gated on plugin_debug_key, which defaults to an empty string and is never set by the upstream repository,…
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High 7.3
0x4m4 HexStrike AI API Command Endpoint hexstrike_server.py missing authentication
A vulnerability was determined in 0x4m4 HexStrike AI up to d689933ff579d839c676c82b231f8e98326c5f04. The impacted element is an unknown function of the file hexstrike_server.py of the component API Command Endpoint. This manipulation causes missing authentica…
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High 7.3
cheshire-cat-ai Cheshire Cat AI custom_auth_handler.py _authorize_http_key missing authentication
A vulnerability has been found in cheshire-cat-ai Cheshire Cat AI up to 1.9.2. This affects the function _authorize_http_key of the file core/cat/factory/custom_auth_handler.py. The manipulation of the argument user_id leads to missing authentication. The att…
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High 7.3
jaychouchannel Tourism-Management-System Update Endpoint missing authentication
A security flaw has been discovered in jaychouchannel Tourism-Management-System up to 229956e20dbd4a80eeff14535e44d3099502af09. The impacted element is an unknown function of the component Update Endpoint. Performing a manipulation results in missing authenti…
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High 7.3
vvbbnn00 WARP-Clash-API authorized missing authentication
A vulnerability has been found in vvbbnn00 WARP-Clash-API up to c7bf2360073959861219b422e51ae86411051b46. The impacted element is the function authorized. The manipulation of the argument SECRET_KEY leads to missing authentication. The attack can be initiated…
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High 7.5
WWBN AVideo Unauthenticated File Read via getRecordedFile.php
WWBN AVideo through commit c3edcc274c389816d434acadac07ee78eaf330c1 contains an unauthenticated file read vulnerability in the getRecordedFile.php endpoint that streams recorded FLV files from the temporary directory. Attackers can request the endpoint with a…
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High 8.8
Howyar｜WeenyGenius - Missing Authentication
WeenyGenius, a computer lab management system developed by Howyar Technologies, has a Missing Authentication vulnerability. Unauthenticated attackers on the same network can easily spoof student or teacher endpoints. Impersonating a student can disrupt normal…
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High 7.5
Apache Artemis, Apache ActiveMQ Artemis: Missing Authentication in CORE Protocol Handler Allows Unauthorized Queue Creation
An unauthenticated remote attacker can create arbitrary durable queues via the CORE protocol, leading to unauthorized broker state manipulation and potential denial of service. This issue affects Apache Artemis: from 2.50.0 through 2.56.0; Apache ActiveMQ Art…
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High 7.5
Apache Artemis, Apache ActiveMQ Artemis: Pre-Authentication Information Disclosure in CORE Protocol Topology Subscription
An unauthenticated remote attacker connecting with the CORE protocol can discover cluster node details by sending a SUBSCRIBE_TOPOLOGY request prior to authentication. This issue affects Apache Artemis: from 2.50.0 through 2.56.0; Apache ActiveMQ Artemis: fro…
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High 7.3
Rizwan17 inventory-management-system AJAX Backend process.php DBOperation.addCategory missing authentication
A security flaw has been discovered in Rizwan17 inventory-management-system up to bfe78a330d01bb26b9daec5dc9ecd5c77900e03f. Affected by this vulnerability is the function DBOperation.addCategory of the file includes/process.php of the component AJAX Backend. …
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High 8.0
Softish C6 Ear Camera and EarVision Android Application Missing authentication for critical function
After spoofing the device and obtaining one user confirmation, an attacker may be able to cause the application to transmit firmware through an unauthenticated and unsigned update channel.
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High 7.3
moltis-org moltis vault.rs vault_recovery_handler missing authentication
A security vulnerability has been detected in moltis-org moltis up to 20260818.10. The affected element is the function vault_unlock_handler/vault_recovery_handler of the file vault.rs. Such manipulation leads to missing authentication. The attack can be laun…
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High 7.8
Windows Shell Elevation of Privilege Vulnerability
Missing authentication for critical function in Windows Shell allows an authorized attacker to elevate privileges locally.
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High 7.5
AVideo through 29.0 Unauthenticated Disclosure via epg.json.php
AVideo through 29.0 contains an authentication bypass vulnerability in plugin/PlayLists/epg.json.php that exposes live-stream keys and private EPG schedules to unauthenticated users. Attackers can request the endpoint with sequential user or playlist IDs to r…
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High 7.5
AVideo through 29.0 Information Disclosure via stats.json.php
AVideo through 29.0 contains an information disclosure vulnerability in plugin/Live/stats.json.php that allows unauthenticated attackers to retrieve stream keys and m3u8 URLs by accessing the endpoint without authentication. Attackers can enumerate private, u…
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High 8.8
Private Metrics Server Denial of Service
Private Metrics Server contained a missing authentication condition affecting metrics upload functionality and service availability. Software customers upgrade to resolved maintenance release. Update Private Metrics Server.
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High 7.7
Missing authentication for a critical function in ASUS Control Center Express Agent allows an unauthenticated nearby us…
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High 8.8
knowns before 0.30.0 Path Traversal via MCP doc and memory tools
knowns versions before 0.30.0 fail to validate filesystem paths in MCP tool arguments, allowing attackers to read, create, overwrite and delete files outside the project directory. Attackers can supply path arguments containing directory traversal sequences t…
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High 8.4
In JetBrains IntelliJ IDEA before 2026.2.2 missing TLS and authentication on the IJent gRPC server allowed local code e…
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High 8.2
Dell SCG 5.0 Appliance versions prior to 5.36.00.16 and Dell SCG 5.0 Application versions prior to 5.36.00.00, contains…
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High 7.5
Dell SCG 5.0 Appliance versions prior to 5.36.00.16 and Dell SCG 5.0 Application versions prior to 5.36.00.00, contains…