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
3,155 results · Feed
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Critical 9.8
Misaka Danmu Server through 2.8.9 Authentication Bypass via Config-History Rollback
Misaka Danmu Server through 2.8.9 contains an authentication bypass vulnerability that allows unauthenticated attackers to write arbitrary configuration keys via the unprotected POST /api/ui/config-history/rollback endpoint. Attackers can set the ipWhitelist …
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Critical 9.8
FastapiAdmin through 3.0 Authentication Bypass via Auto-Login Endpoints
FastapiAdmin through 3.0 contains an authentication bypass vulnerability that allows unauthenticated attackers to obtain sessions for any user by abusing unprotected auto-login endpoints. Attackers can list users via /api/v1/auth/auto-login/users, mint a supe…
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Medium 5.3
NexoPOS through 6.2.4 Unauthenticated Transaction Disclosure via /api/fields Endpoint
NexoPOS through 6.2.4 contains a missing authentication vulnerability that allows unauthenticated attackers to read accounting transaction records via GET /api/fields/{resource}/{identifier}. Attackers can request transaction field classes like ns.entity-tran…
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Critical 9.8
Webreaper Damselfly through 4.5.3 Missing Authentication on REST API Controllers
Webreaper Damselfly through 4.5.3 contains an authentication bypass vulnerability that allows unauthenticated attackers to access all /api/* routes because controller authorization attributes are commented out. Attackers can send PUT /api/users with Admin rol…
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Low 3.7
Umbraco CMS before 17.7.1 and 18.2.1 Missing Authorization on SignalR Hubs
Umbraco CMS before 17.7.1 and 18.2.1 contains a missing authorization vulnerability that allows unauthenticated clients to connect to the backoffice PreviewHub and BackofficeHub SignalR hubs. Attackers can complete the SignalR negotiate step and receive refre…
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Medium 6.5
WHartTest through 2.8.1 Missing Authentication on UI-Automation WebSocket Endpoints
WHartTest through 2.8.1 contains a missing authentication vulnerability that allows unauthenticated attackers to connect to the /ws/ui/web/ and /ws/ui/actuator/ WebSocket endpoints because UiAutomationConsumer accepts every connection. Attackers can register …
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High 7.5
AllData through 0.7.1 Unauthenticated JDBC Injection via /jobJdbcDatasource/test
AllData through 0.7.1 contains an unauthenticated JDBC injection vulnerability that allows remote attackers to open arbitrary database connections by supplying jdbcUrl and jdbcDriverClass values to the data-dts /jobJdbcDatasource/test endpoint. Attackers can …
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Critical 9.6
Dockhand: Unauthenticated container exec via WebSocket upgrade
Dockhand is a Docker management application. Prior to 1.0.34, the in-browser container terminal endpoint /api/containers/<id>/exec does not enforce authentication on the WebSocket upgrade request. When an unauthenticated attacker has network reach to Dockhand…
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High 7.5
J4Care dcm4che Missing Authentication for Critical Function
In the default configuration, the HL7 listener accepts ADT^A40 patient-merge messages without authenticating the sending application. A remote sender can reassign studies and related workflow records from one patient identity to another. The archive's unmerge…
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Critical 9.1
J4Care dcm4che Missing Authentication for Critical Function
In the default configuration, the archive accepts DICOM associations from an unregistered calling AE. A remote peer can use C-FIND and C-GET to enumerate and retrieve patient information and medical images. It can also use C-STORE to file fabricated study con…
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Critical 9.8
Apache Kylin: Missing authentication on certain cache API endpoints
Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection'), Missing Authentication for Critical Function vulnerability in Apache Kylin. Impact most to the kylin services that are directly exposed to public network, which is not commo…
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Critical 9.8
Archon 0.2.13 through 0.11.1 Missing Authentication via /api/* Control API
Archon 0.2.13 through 0.11.1 contains a missing authentication vulnerability that allows unauthenticated attackers to access the /api/* control API, which binds to 0.0.0.0 by default. Attackers with network access can send messages to the AI coding agent, whi…
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High 7.7
OpenHealth through 0.2.0 Missing Authentication via /api/health-data/[id] Route
OpenHealth through 0.2.0 contains a missing authentication and authorization vulnerability in the /api/health-data/[id] GET, PATCH and DELETE handlers that query records by id without session or authorId checks. Unauthenticated attackers who know a HealthData…
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Critical 9.8
EnergizeLab Eilik Unauthenticated AI Model Administration and Runtime Model Switching
The EnergizeLab Eilik and EilikO FastAPI AI inference and profiling services expose AI model administration functions without authentication. An unauthenticated remote attacker can change AI model configuration and switch the model in use at runtime.
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High 8.2
EnergizeLab Eilik Unauthenticated Device-Token Issuance for Arbitrary Serial Numbers
The EnergizeLab Eilik NestJS auth service issues device tokens for arbitrary robot serial numbers without authentication. An unauthenticated remote attacker can obtain a valid device token for any serial number and act as that device against the cloud service…
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Critical 9.8
Pre-Authentication Admin Bypass and Remote Code Execution in Nutanix Prism Gateway inside AOS
An unauthenticated remote attacker can bypass authentication and gain full access to administrative API endpoints in Nutanix Prism Element by including a crafted internal management HTTP header. The vulnerability is caused by a misconfiguration in the applica…
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High 8.9
Unauthenticated Remote Input Injection in QNAP HD Station's remotepad
A missing authentication for critical function vulnerability has been reported to affect HybridDesk Station. If exploited, the vulnerability could allow remote attackers to gain access to the system. We have already fixed the vulnerability in the following ve…
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Critical 9.3
Pre-Authentication Multiple Critical Vulnerabilities in QNAP sMedioDTCPServer
A missing authentication for critical function vulnerability has been reported to affect sMedio DTCP MOVE. If exploited, the vulnerability could allow remote attackers to gain access to the system. We have already fixed the vulnerability in the following vers…
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High 7.5
HPE NonStop TCP/IP UTILITIES - Denial of Service vulnerability
A vulnerability in the finger daemon of HPE NonStop TCP/IP UTILITIES could allow an unauthenticated remote attacker to cause a denial of service.
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Medium 5.3
HPE NonStop TCP/IP UTILITIES - Denial of Service vulnerability
A vulnerability in HPE NonStop TCP/IP UTILITIES could allow an unauthenticated remote attacker to cause a denial of service when traceroute is executed under certain conditions.
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High 7.5
FreeRDP shadow before 3.32.0 Pre-Authentication Input Injection via Confirm Active bypass
FreeRDP shadow server from 3.0.0 before 3.32.0 dispatches input PDUs during the Confirm Active state before authentication, allowing unauthenticated attackers to inject keyboard input. Attackers can negotiate TLS-only RDP and send an input PDU without Confirm…
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Medium 5.3CVE-2026-104110 Public exploit
FileRise: Unauthenticated disclosure of internal folder path, client email, and upload policy for FileRise Pro client portals via /api/pro/portals/get.php
FileRise is a self-hosted web-based file manager with multi-file upload, editing, and batch operations. Prior to 3.24.0, FileRise Pro /api/pro/portals/get.php returns a configured client portal's full internal record to an unauthenticated caller who knows or …
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Medium 6.5
FileRise: 2FA disable and TOTP enrollment lack step-up re-authentication; enrollment activates before verification
FileRise is a self-hosted web-based file manager with multi-file upload, editing, and batch operations. Prior to 3.23.0, FileRise permits an authenticated session with a valid CSRF token to disable TOTP without recent full reauthentication or to begin enrollm…
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Low 3.7
FileRise: Missing Authentication Guard on File Snippet Preview Endpoint
FileRise is a self-hosted web-based file manager with multi-file upload, editing, and batch operations. Prior to 3.20.0, FileRise /api/file/snippet.php does not apply the standard authenticated-session guard before processing short text preview requests. The …
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High 7.4
FileRise: Setup mode re-activates when users.txt becomes empty, allowing unauthenticated admin creation
FileRise is a self-hosted web-based file manager with multi-file upload, editing, and batch operations. Prior to 3.16.0, FileRise treats an empty or missing users.txt file as a fresh installation even after setup previously completed. If storage loss, truncat…
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High 8.2
OpenAEV has unauthenticated access and missing object-level authorization on player lessons API
OpenAEV is an open source platform allowing organizations to plan, schedule and conduct cyber adversary simulation campaign and tests. Prior to version 2.260622.0, on a default installation, the `/api/player/**` lessons endpoints can be called without authent…
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Medium 6.5
cemtan sar2html sar2html.py deleteAll missing authentication
A security vulnerability has been detected in cemtan sar2html 4.0.0. This affects the function deleteHost/deleteRange/deleteAll of the file sar2html.py. Such manipulation leads to missing authentication. The attack may be performed from remote. The exploit ha…
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Critical 9.2
Dgraph: Zero Unauthenticated HTTP Admin removeNode Denial of Service
Dgraph is an open source distributed GraphQL database. Prior to 25.4.0, Dgraph Zero registers administrative HTTP routes on port 6080 without authentication when the administrative interface is enabled. The /removeNode route accepts attacker-controlled id and…
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High 8.2
dbt: Unauthenticated Arbitrary SQL Execution in `dbt docs serve`
dbt enables data analysts and engineers to transform their data using the same practices that software engineers use to build applications. From 2.0.0-alpha.0 until 2.0.0-alpha.5, dbt docs serve exposes the unauthenticated POST /api/v1/query endpoint in crate…
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High 8.4
Flyto2 Core: Unauthenticated Command Execution via HTTP MCP `execute_module`
Flyto2 Core is an execution kernel for automation and AI-agent workflows. From 2.26.2 until 2.26.4, the HTTP MCP POST /mcp route accepts unauthenticated JSON-RPC tools/call requests and forwards execute_module arguments to the module registry without the requ…
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Critical 9.8
Lantronix XPress-DR 8.1.0.0 Unauthenticated Configuration Write via UDP 30718
Lantronix XPress-DR and XPress-DR-I (CoBos-family) firmware through 8.1.0.0 contains a missing authentication vulnerability that allows remote attackers to read and persistently overwrite device configuration by sending crafted frames to the unauthenticated U…
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High 8.1
Report One MyReport Updater through 2.1.1 Unauthenticated gRPC Service RCE
Report One MyReport Updater through 2.1.1 exposes an unauthenticated gRPC service on TCP port 9095 that allows remote attackers to redirect the SYSTEM updater by invoking the UpdateConfigReferent method. Attackers can point the updater to a malicious referenc…
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Medium 4.8
frp 0.41.0 through 0.71.1 Missing Authentication for pprof Debug Endpoints
frp 0.41.0 through 0.71.1 contains a missing authentication vulnerability that allows unauthenticated remote attackers to access pprof debug endpoints because handlers are registered on the root mux outside Basic Authentication. Attackers can query /debug/ppr…
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High 8.1
SmsForwarder through 3.5.0 Missing Authentication in HTTP Server Remote Control API
SmsForwarder through 3.5.0 contains a missing authentication vulnerability in its AndServer HTTP server that allows unauthenticated network attackers to invoke remote-control APIs. Attackers can call the default-enabled endpoints to read SMS, call logs and co…
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High 8.1
NullHub through 2026.5.29 Missing Authentication for /api Management API
NullHub through 2026.5.29 contains a missing authentication vulnerability that allows unauthenticated attackers to access the /api/* management API because the auth_token field defaults to null and is never assigned. Attackers sending requests without Authori…
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Critical 9.8
Missing Authentication for Critical Function in TR7 Cyber Defense's TR7 ASP
Missing authentication for critical function vulnerability in TR7 Cyber Defense Inc. TR7 ASP on virtual appliance and TR7 Cyber Defense Inc. TR7 ASP on physical appliance allows OS Command Injection. This issue affects TR7 ASP: from 1.0.40.236 before 1.0.…
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High 7.5
Unauthenticated Plugin Safe Mode Toggle Vulnerability in JTL-Shop
The authentication middleware of the JTL-Shop administration backend processes the plugin safe mode toggle on the admin logout route before checking whether the requesting user is authenticated. An unauthenticated remote attacker can therefore switch the shop…
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Medium 4.7
Clevis: clevis: no authentication on pkcs#11 af_unix sockets allows key injection under permissive umask
A flaw was found in the clevis PKCS#11 pin. The clevis-pkcs11-afunix-socket-unlock daemon creates AF_UNIX sockets without explicit permission restrictions or peer credential verification. Under a permissive process umask, any local user can connect to the con…
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High 8.7
Improper Authentication and Credential Exposure in Multiple TP-Link Kasa Devices
Multiple Kasa devices contain an improper authentication vulnerability in the local device-management protocol. An unauthenticated adjacent attacker may send management instructions to an affected device without adequate authentication or authorization, allow…
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High 7.0
Windows Setup and Deployment Elevation of Privilege Vulnerability
Missing authentication for critical function in Windows Setup and Deployment allows an authorized attacker to elevate privileges locally.