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
1,263 results · Clear filters · Feed
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High 8.1
Vulnerability in the PeopleSoft Enterprise PeopleTools product of Oracle PeopleSoft (component: PIA Core Technology). S…
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High 8.8
Vulnerability in the Oracle WebCenter Portal product of Oracle Fusion Middleware (component: Composer). Supported versi…
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High 8.8
Vulnerability in the Oracle Identity Manager product of Oracle Fusion Middleware (component: OIM Legacy UI). Supported …
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High 8.8
Vulnerability in the Oracle Identity Manager product of Oracle Fusion Middleware (component: OIM Legacy UI). Supported …
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High 8.6
9Router: Authenticated Server-Side Request Forgery (SSRF) via OIDC Provider Test Endpoint
9Router is an AI router & token saver. In 0.5.4 and earlier, the POST /api/auth/oidc/test endpoint in src/app/api/auth/oidc/test/route.js passes the user-controlled issuerUrl parameter to fetchOidcDiscovery() in src/lib/auth/oidc.js without restricting privat…
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High 7.5
JimuReport Unauthenticated Report Listing and Share Token Disclosure
JimuReport contains an authentication bypass vulnerability in the report folder template listing endpoint that allows unauthenticated attackers to enumerate all reports and retrieve share tokens. Attackers can use disclosed share tokens to access protected re…
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High 8.4
In JetBrains PyCharm before 2026.2.1 code execution was possible via unauthenticated Jupyter MCP tools
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High 7.1
PAX Technology Q80 XCB Daemon Missing Authentication Vulnerability
PAX Technology Q80 XCB Daemon Missing Authentication Vulnerability. This vulnerability allows network-adjacent attackers to disclose sensitive information and modify configuration on affected installations of PAX Technology Q80. Authentication is not required…
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High 8.8CVE-2026-73673 Public exploit
Netis NC63 V3.0.0.3327 Unauthenticated Firmware Update with Missing Cryptographic Firmware Authentication
Netis NC63 router firmware V3.0.0.3327 contains an unauthenticated firmware update vulnerability that allows unauthenticated attackers to submit unsigned firmware images by exploiting a missing authentication enforcement flaw in the Boa web server and netis.c…
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High 8.8
Grav before 1.0.13 Authentication Bypass via disable2fa
The getgrav/grav-plugin-api Composer package before 1.0.13 (affected <= 1.0.12) fails to enforce API key scope caps on the disable2fa endpoint. Unlike the sibling generate2fa endpoint, disable2fa authorizes the admin (non-self) path solely via ACL reads (isSu…
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High 8.2
OpenChoreo: Unauthenticated Backstage developer-portal API exposes OpenChoreo catalog data, scaffolder logs, and allows unauthenticated catalog write/delete
OpenChoreo is a developer platform for Kubernetes. Prior to 1.0.4, 1.1.4, and 1.2.1, the OpenChoreo Backstage backend hardcoded backend.auth.dangerouslyDisableDefaultAuthPolicy and auth.providers.guest.dangerouslyAllowOutsideDevelopment to true, exposing /api…
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High 7.3
Signify Philips Hue Bridge Pro MQTT broker missing authentication
The Signify Philips Hue Bridge Pro firmware embeds a Mosquitto MQTT broker service that listens on all network interfaces without authentication. An unauthenticated attacker with network access to the MQTT service on a vulnerable system can read data and cont…
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High 8.2
FitSoft｜POS Sytstem - Missing Authentication
POS System developed by FitSoft has a Missing Authentication vulnerability. Unauthenticated remote attackers can directly access and operate the system.
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High 7.5
Kestra: Unauthenticated management `/worker` endpoint exposes live task configuration and plaintext credentials
Kestra is an open-source, event-driven orchestration platform. Prior to 2.0.0-rc6, Kestra's worker/src/main/java/io/kestra/worker/endpoint/WorkerEndpoint.java serves GET /worker without authentication and serializes the complete live Task object, which can ex…
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High 8.8
Mira Hormone Monitor, Mira Android App Missing authentication for critical function
In the Mira hormone monitor device firmware v1.7.1.47 build 01070147, a remote unauthenticated attacker within BLE range (approximately 10–30 meters) can silently rebind the device to an attacker-controlled account, extract stored hormone measurements in clea…
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High 8.8
Claude Code Templates: Unauthenticated OS command injection (RCE) in Claude Code Studio server (--studio)
Claude Code Templates is a CLI tool for configuring and monitoring Claude Code. Prior to 1.29.4, the Claude Code Studio server launched by the --studio option in cli-tool/src/sandbox-server.js binds to all interfaces on port 3444, permits cross-origin request…
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High 8.8
Microsoft SharePoint Server Elevation of Privilege Vulnerability
Missing authentication for critical function in Microsoft Office SharePoint allows an authorized attacker to elevate privileges over a network.
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High 7.8
Windows Remote Desktop Services Elevation of Privilege Vulnerability
Missing authentication for critical function in Windows Remote Desktop Services allows an authorized attacker to elevate privileges locally.
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High 7.8
Windows Remote Desktop Services Elevation of Privilege Vulnerability
Missing authentication for critical function in Windows Remote Desktop Services allows an authorized attacker to elevate privileges locally.
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High 7.8
Remote Access Management service/API (RPC server) Elevation of Privilege Vulnerability
Missing authentication for critical function in Windows RPC API allows an authorized attacker to elevate privileges locally.
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High 7.8
Windows License Manager Elevation of Privilege Vulnerability
Missing authentication for critical function in Windows License Manager allows an authorized attacker to elevate privileges locally.
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High 7.8
Windows Remote Desktop Services Elevation of Privilege Vulnerability
Missing authentication for critical function in Windows Remote Desktop Services allows an authorized attacker to elevate privileges locally.
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High 7.8
Windows Remote Desktop Services Elevation of Privilege Vulnerability
Missing authentication for critical function in Windows Remote Desktop Services allows an authorized attacker to elevate privileges locally.
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High 7.5
Swing Music Swing Music - Missing Authentication
A missing authentication vulnerability in Swing Music 3.0.0 allows unauthenticated remote attackers to create arbitrary user accounts via the POST /auth/profile/create endpoint. The endpoint is allowlisted from JWT verification, permitting unauthenticated acc…
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High 8.2
Chaskiq Chaskiq - Missing Authentication
A missing authentication vulnerability in Chaskiq through commit 46dfdd1 allows unauthenticated remote attackers to manipulate any tenant Stripe subscription via the stripeCreateIntent GraphQL mutation. The mutation lacks authentication and authorization chec…
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High 8.2
Chaskiq Chaskiq - Missing Authentication
A missing authentication vulnerability in Chaskiq through commit 46dfdd1 allows unauthenticated remote attackers to mint Stripe Billing Portal sessions for any tenant via the stripeCustomerPortal GraphQL mutation. The mutation performs no authentication or au…
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High 7.4
Wildfly-iiop-openjdk: missing authentication on eap's iiop nameservice leads to mitm or dos
A flaw was found in EAP's IIOP. The listener's NameService would accept bind operations without authentication, allowing an attacker to hijack JNDI lookups and binding them to a malicious ORB, achieving MITM or DoS on further invocations.
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High 7.7
Feast: feast-operator: feast: default authentication mode is no_auth — shared multi-tenant instances deployed without authentication
A flaw was found in Feast and feast-operator. The default configuration for both the Feast SDK and the feast-operator is "no_auth," meaning no security manager is installed. This default allows unauthenticated and unauthorized access to feature-server, regist…
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High 8.0
Trustyai-service-operator: trustyai-service-operator: tas internal service bypasses kube-rbac-proxy, exposing unauthenticated quarkus api cluster-wide
A flaw was found in the TrustyAI Service (TAS) deployment. This vulnerability allows any pod on the cluster network to bypass authentication and directly access the TAS backend API. An attacker can exploit this to read, tamper with, or delete monitoring data …
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High 8.8
Multiple Unauthenticated Denial-of-Service Conditions
TBEA TLogger V2.1.0.0B0.0.0.0 contains multiple unauthenticated denial-of-service vulnerabilities in its web server. An unauthenticated remote attacker can invoke specific HTTP endpoints to reboot or reset the device, clear application data, or terminate the …
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High 7.5
Dokploy: Unauthenticated Git Provider Injection via GitHub OAuth Callback
Dokploy is a free, self-hostable Platform as a Service (PaaS). Prior to 0.29.13, the unauthenticated /api/providers/github/setup route in apps/dokploy/pages/api/providers/github/setup.ts trusts gh_init organizationId and userId values from the state parameter…
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High 7.5
OpenSignLabs opensignserver - Missing Authentication for Critical Function
A missing authentication vulnerability in OpenSignLabs opensignserver through 2.37.0 allows an unauthenticated remote attacker to read arbitrary stored documents via the fileupload Parse cloud function. The function mints MASTER_KEY-signed file access tokens …
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High 7.5
frangoteam FUXA - Missing Authentication on DAQ_QUERY Socket.IO Event Handler
A missing authentication vulnerability in frangoteam/FUXA through 1.3.3 allows an unauthenticated remote attacker to query all historical sensor data via the DAQ_QUERY Socket.IO event. When secureEnabled=true, all other sensitive Socket.IO events (DEVICE_BROW…
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High 7.5
Apache Ranger: Download APIs expose plugin data without authentication
Missing Authentication in Apache Ranger Download APIs on versions <= 2.8.0. Users are recommended to upgrade to version 2.9.0, which fixes this issue.
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High 7.1
No Authentication for Very High Frequency Data Link messages used in CPDLC
Lack of authentication for Very High Frequency Data Link messages allows rogue ground stations to inject CPDLC messages leading to unexpected or misleading clearances and potential pilot confusion. This type of attack can be carried out remotely over radio fr…
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High 7.5
Dinky Unauthenticated System Configuration and Credential Disclosure via GET /api/sysConfig/getAll
Dinky's SysConfigController.getAll() handler for GET /api/sysConfig/getAll carries a method-level @SaIgnore annotation that short-circuits the class-level @SaCheckLogin, so the Sa-Token interceptor lets the request through with no session or role check. Any r…
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High 7.5
Ground Station prior to 0.6.0 Unauthenticated DoS via service_control Socket.IO
Ground Station prior to 0.6.0 contains an unauthenticated denial-of-service vulnerability in the Socket.IO server's service_control event handler that allows any unauthenticated network peer to forcibly terminate the ground-station process by sending a single…
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High 7.5
OpenChamber 1.11.7 Unauthenticated DoS via /api/system/shutdown
OpenChamber 1.11.7 contains an authentication bypass vulnerability that allows unauthenticated remote attackers to terminate the server process by sending a POST request to the /api/system/shutdown endpoint, which is registered before the authentication middl…
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High 7.3
letta-ai LettaBot API Status Route server.ts missing authentication
A vulnerability was detected in letta-ai LettaBot 0.2.0. Impacted is an unknown function of the file src/api/server.ts of the component API Status Route. The manipulation results in missing authentication. The attack may be performed from remote. The exploit …
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High 7.5
Milvus 2.6.22, 3.0.0 Unauthenticated Denial of Service via /management/stop
Milvus through 2.6.22 and 3.0.0 contains an unauthenticated denial of service vulnerability that allows remote attackers to terminate service components by sending a crafted HTTP GET request to the management server on port 9091. Attackers can exploit the unp…