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)
-
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.
-
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.
-
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.
-
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].
-
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
1,266 results · Clear filters · Feed
-
High 8.1
OpenClaw < 2026.2.2 - Device Identity Check Bypass in Gateway WebSocket Connect Handshake
OpenClaw versions prior to 2026.2.2 contain a vulnerability in the gateway WebSocket connect handshake in which it allows skipping device identity checks when auth.token is present but not validated. Attackers can connect to the gateway without providing devi…
-
High 7.7
OpenClaw 2026.1.29-beta.1 < 2026.2.14 - Authentication Bypass in Sandbox Browser Bridge Server
OpenClaw versions 2026.1.29-beta.1 prior to 2026.2.14 contain a vulnerability in the sandbox browser bridge server in which it accepts requests without requiring gateway authentication, allowing local attackers to access browser control endpoints. A local att…
-
High 8.1
OpenClaw 2026.1.20 < 2026.2.1 - Missing Authentication in Browser Relay /cdp WebSocket Endpoint
OpenClaw version 2026.1.20 prior to 2026.2.1 contains a vulnerability in the Browser Relay (extension must be installed and enabled) /cdp WebSocket endpoint in which it does not require authentication tokens, allowing websites to connect via loopback and acce…
-
High 8.8
Missing Authentication for Critical Function in Labkotec LID-3300IP
The Labkotec LID-3300IP has an existing vulnerability in the ice detector software that enables an unauthenticated attacker to alter device parameters and run operational commands when specially crafted packets are sent to the device.
-
High 7.1
The SmartRemote module has insufficient restrictions on loading URLs, which may lead to some information leakage.
-
High 7.5
Umbraco.Engage.Forms Allows Unauthorized Access to Multiple API Endpoints
Umbraco Engage is a business intelligence platform. A vulnerability has been identified in Umbraco Engage prior to versions 16.2.1 and 17.1.1 where certain API endpoints are exposed without enforcing authentication or authorization checks. The affected endpoi…
-
High 8.0
Unitree Go2 Missing DDS Authentication Enables Adjacent RCE
Unitree Go2 firmware versions V1.1.7 through V1.1.9, and V1.1.11 (EDU) do not implement DDS authentication or authorization for the Eclipse CycloneDDS topic rt/api/programming_actuator/request handled by actuator_manager.py. A network-adjacent, unauthenticate…
-
High 8.7
Tattile Smart+ / Vega / Basic <= 1.181.5 Unauthenticated RTSP Stream Disclosure
Tattile Smart+, Vega, and Basic device families firmware versions 1.181.5 and prior expose RTSP streams without requiring authentication. A remote attacker can connect to the RTSP service and access live video/audio streams without valid credentials, resultin…
-
High 7.3
DataLinkDC dinky OpenAPI Endpoint AppConfig.java addInterceptors missing authentication
A vulnerability was determined in DataLinkDC dinky up to 1.2.5. This affects the function addInterceptors of the file dinky-admin/src/main/java/org/dinky/configure/AppConfig.java of the component OpenAPI Endpoint. Executing a manipulation can lead to missing …
-
High 8.2
Welker OdorEyes EcoSystem Pulse Bypass System with XL4 Controller Missing Authentication for Critical Function
The underlying PLC of the device can be remotely influenced, without proper safeguards or authentication.
-
High 7.5
Jinan USR IOT Technology Limited (PUSR) USR-W610 Missing Authentication for Critical Function
The Wi-Fi router is vulnerable to de-authentication attacks due to the absence of management frame protection, allowing forged deauthentication and disassociation frames to be broadcast without authentication or encryption. An attacker can use this to cause u…
-
High 7.5
OpenClaw has Missing Webhook Authentication in Telnyx Provider Allowing Unauthenticated Requests
OpenClaw is a personal AI assistant. Versions 2026.2.13 and below allow the optional @openclaw/voice-call plugin Telnyx webhook handler to accept unsigned inbound webhook requests when telnyx.publicKey is not configured, enabling unauthenticated callers to fo…
-
High 8.4
Saturn Remote Mouse Server UDP Command Injection RCE
Saturn Remote Mouse Server contains a command injection vulnerability that allows unauthenticated attackers to execute arbitrary commands by sending specially crafted UDP JSON frames to port 27000. Attackers on the local network can send malformed packets wit…
-
High 7.7
Kernel: secure boot does not automatically enable kernel lockdown
The Linux Kernel lockdown mode for kernel versions starting on 6.12 and above for Fedora Linux has the lockdown mode disabled without any warning. This may allow an attacker to gain access to sensitive information such kernel memory mappings, I/O ports, BPF a…
-
High 7.5
Missing authentication in /admin/student.php and /admin/teacher.php in ProjectWorlds Online Time Table Generator 1.0 al…
-
High 8.8
Business Logic Error in Universal Software's FlexCity/Kiosk
Privilege Defined With Unsafe Actions, Missing Authentication for Critical Function vulnerability in Universal Software Inc. FlexCity/Kiosk allows Accessing Functionality Not Properly Constrained by ACLs, Privilege Escalation. This issue affects FlexCity/Kios…
-
High 7.5
Unauthenticated Admission Webhook Endpoints in Yoke ATC
Yoke is a Helm-inspired infrastructure-as-code (IaC) package deployer. In 0.19.0 and earlier, a vulnerability exists in the Air Traffic Controller (ATC) component of Yoke. The ATC webhook endpoints lack proper authentication mechanisms, allowing any pod withi…
-
High 7.5CVE-2026-26235 Public exploit
JUNG Smart Visu Server 1.1.1050 - 'JUNG Smart Visu Server' Missing Authentication
JUNG Smart Visu Server 1.1.1050 contains a denial of service vulnerability that allows unauthenticated attackers to remotely shutdown or reboot the server. Attackers can send a single POST request to trigger the server reboot without requiring any authenticat…
-
High 7.5
Sliver has a DNS C2 OTP Bypass Allows Unauthenticated Session Flooding and Denial of Service
Sliver is a command and control framework that uses a custom Wireguard netstack. Prior to 1.7.0, the DNS C2 listener accepts unauthenticated TOTP bootstrap messages and allocates server-side DNS sessions without validating OTP values, even when EnforceOTP is …
-
High 7.3
detronetdip E-commerce Account Creation Endpoint add_seller.php missing authentication
A weakness has been identified in detronetdip E-commerce 1.0.0. Impacted is an unknown function of the file /Admin/assets/backend/seller/add_seller.php of the component Account Creation Endpoint. Executing a manipulation of the argument email can lead to miss…
-
High 7.5
DBPower C300 HD Camera - Remote Configuration Disclosure
DBPower C300 HD Camera contains a configuration disclosure vulnerability that allows unauthenticated attackers to retrieve sensitive credentials through an unprotected configuration backup endpoint. Attackers can download the configuration file and extract ha…
-
High 7.5
Aptina AR0130 960P 1.3MP Camera - Remote Configuration Disclosure
ACE Security WiP-90113 HD Camera contains a configuration disclosure vulnerability that allows unauthenticated attackers to retrieve sensitive configuration files. Attackers can access the camera's configuration backup by sending a GET request to the /config_…
-
High 8.4
OpenClaw Affected by Unauthenticated Local RCE via WebSocket config.apply
OpenClaw is a personal AI assistant. Prior to 2026.1.20, an unauthenticated local client could use the Gateway WebSocket API to write config via config.apply and set unsafe cliPath values that were later used for command discovery, enabling command injection …
-
High 7.5
FUXA contains an Unrestricted File Upload vulnerability
FUXA v1.2.7 contains an Unrestricted File Upload vulnerability in the `/api/upload` API endpoint. The endpoint lacks authentication mechanisms, allowing unauthenticated remote attackers to upload arbitrary files. This can be exploited to overwrite critical sy…
-
High 7.5
Multiple Innomic VibroLine VLX and avibia AVLX allow unauthenticated configuration preset change via Modbus (TCP)
An unauthenticated remote attacker could potentially disrupt operations by switching between multiple configuration presets via Modbus (TCP).
-
High 7.5
Multiple Innomic VibroLine VLX and avibia AVLX allow unauthenticated configuration preset change via HTTP
An unauthenticated remote attacker could potentially disrupt operations by switching between multiple configuration presets via HTTP.
-
High 7.6
Runtipi vulnerable to unauthenticated docker-compose.yml Overwrite via Path Traversal
Runtipi is a personal homeserver orchestrator. Starting in version 4.5.0 and prior to version 4.7.2, an unauthenticated Path Traversal vulnerability in the `UserConfigController` allows any remote user to overwrite the system's `docker-compose.yml` configurat…
-
High 7.5
Intelbras Router RF 301K 1.1.2 - Authentication Bypass
Intelbras Router RF 301K firmware version 1.1.2 contains an authentication bypass vulnerability that allows unauthenticated attackers to download router configuration files. Attackers can send a specific HTTP GET request to /cgi-bin/DownloadCfg/RouterCfm.cfg …
-
High 8.8
Enel X JuiceBox 40 Telnet Service Missing Authentication Remote Code Execution Vulnerability
Enel X JuiceBox 40 Telnet Service Missing Authentication Remote Code Execution Vulnerability. This vulnerability allows network-adjacent attackers to execute arbitrary code on affected installations of Enel X JuiceBox 40 charging stations. Authentication is n…
-
High 8.9
Dragonfly Manager Job API Allows Unauthenticated Access
Dragonfly is an open source P2P-based file distribution and image acceleration system. In versions 2.4.1-rc.0 and below, the Job API endpoints (/api/v1/jobs) lack JWT authentication middleware and RBAC authorization checks in the routing configuration. This a…
-
High 7.7
SQLBot uploadExcel Endpoint has Unauthenticated Arbitrary File Upload vulnerability
SQLBot is an intelligent data query system based on a large language model and RAG. Versions prior to 1.5.0 contain a missing authentication vulnerability in the /api/v1/datasource/uploadExcel endpoint, allowing a remote unauthenticated attacker to upload arb…
-
High 7.5
Tenda D151 & D301 - Configuration Download
Tenda D151 and D301 routers contain an unauthenticated configuration download vulnerability that allows remote attackers to retrieve router configuration files. Attackers can send a request to /goform/getimage endpoint to download configuration data including…
-
High 8.0
Arcane allows unauthenticated proxy access to remote environments
Arcane is an interface for managing Docker containers, images, networks, and volumes. Prior to version 1.13.2, unauthenticated requests could be proxied to remote environment agents, allowing access to remote environment resources without authentication. The …
-
High 7.5
Gotac｜Statistics Database System - Missing Authentication
Statistics Database System developed by Gotac has a Missing Authentication vulnerability, allowing unauthenticated remote attackers to directly exploit a specific functionality to query database contents.
-
High 8.1
DIAView - Authentication Bypass Vulnerability
Delta Electronics DIAView has multiple vulnerabilities.
-
High 8.7
Denver SHO-110 IP Camera Unauthenticated Snapshot Access
Denver SHO-110 IP cameras expose a secondary HTTP service on TCP port 8001 that provides access to a '/snapshot' endpoint without authentication. While the primary web interface on port 80 enforces authentication, the backdoor service allows any remote attack…
-
High 7.2
Microsoft SQL Server Elevation of Privilege Vulnerability
Missing authentication for critical function in SQL Server allows an authorized attacker to elevate privileges over a network.
-
High 8.8
Privilege escalation vulnerability in SAP HANA database
SAP HANA database is vulnerable to privilege escalation allowing an attacker with valid credentials of any user to switch to another user potentially gaining administrative access. This exploit could result in a total compromise of the system�s confidentialit…
-
High 8.8
OpenCode's Unauthenticated HTTP Server Allows Arbitrary Command Execution
OpenCode is an open source AI coding agent. Prior to 1.0.216, OpenCode automatically starts an unauthenticated HTTP server that allows any local process (or any website via permissive CORS) to execute arbitrary shell commands with the user's privileges. This …
-
High 8.2
WebErpMesv2 allows unauthenticated API Access
WebErpMesv2 is a Resource Management and Manufacturing execution system Web for industry. Prior to 1.19, the WebErpMesV2 application exposes multiple sensitive API endpoints without authentication middleware. An unauthenticated remote attacker can read busine…