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
Apache Roller: Anonymous setup action allows frontpage configuration tampering
Missing Authentication for Critical Function in Apache Roller 6.1.5 allows an unauthenticated remote attacker to persistently change a site-global configuration value (the frontpage weblog selection) on any installed instance, because the setup action remains…
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High 7.3
coollabsio Coolify GitHub App Setup redirect missing authentication
A vulnerability was found in coollabsio Coolify up to 4.1.0. This affects the function Github::redirect of the file /webhooks/source/github/redirect of the component GitHub App Setup Handler. The manipulation of the argument state results in missing authentic…
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High 7.5
grav-plugin-comments before 1.2.11 Unauthenticated Information Disclosure
The Comments plugin (getgrav/grav-plugin-comments) for Grav CMS through version 1.2.10 registers an admin handler that returns comment data as JSON without any authentication check. The handler branches on isAdmin(), which only indicates that the admin servic…
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High 7.5
SCBE-AETHERMOORE Unauthenticated AetherBrowser Ops API Exposes Operator Email Digests
SCBE-AETHERMOORE is a geometric AI governance and evaluation framework. Starting in version 4.0.2 and prior to version 4.2.1, the AetherBrowser API server (`scripts/aetherbrowser/api_server.py`) exposes the `POST /api/ops/check-email` endpoint without any aut…
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High 7.5
Unauthenticated Event Stream Exposure of Session Tokens in Navigator NCS
Ciena Navigator Network Control Suite (NCS) contains an information exposure vulnerability in an event-streaming API that does not properly enforce authentication. An unauthenticated attacker with network access to the affected service could access the event …
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High 8.7
Zammad: Denial of Service via OTRS Import Controller
Zammad is a web based open source helpdesk/customer support system. Prior to 7.0.2, summary An unauthenticated request to POST /api/v1/import/otrs/import_check blocks a Zammad request worker for roughly two minutes. The import_check and import_status actions …
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High 7.3
zhistaredu StarTraining Druid Console index.html anonymous missing authentication
A vulnerability was identified in zhistaredu StarTraining up to 3.8.1. Impacted is the function anonymous of the file /druid/index.html of the component Druid Console. Such manipulation leads to missing authentication. The attack may be performed from remote.…
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High 8.6
Dell ThinOS 10, versions prior to SecurityAddon_2605.10.2766_T10, contain a Missing Authentication for Critical Functio…
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High 7.3
volotat Anagnorisis Socket.IO Connect app.py missing authentication
A vulnerability was found in volotat Anagnorisis up to 0.3.1/0.4.0. Affected is an unknown function of the file app.py of the component Socket.IO Connect Interface. The manipulation results in missing authentication. It is possible to launch the attack remote…
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High 8.6
Klever-Go: /log controls global node logging
Klever-Go is the Go implementation of the Klever blockchain protocol. Prior to 1.7.20, the default-open GET /log WebSocket route configured in config/node/api.yaml and registered by network/api/api.go does not require authentication. The first client message …
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High 7.3
IBM Financial Transaction Manager (FTM) is Impacted by Multiple Vulnerabilities
IBM Financial Transaction Manager (FTM) for RedHat OpenShift could allow a remote attacker to access sensitive information and modify system configurations due to missing authentication for a critical function.
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High 7.4
Dell Secure Connect Gateway (SCG) Policy Manager, versions prior to 5.34.00.16, contains a Missing Authentication for C…
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High 7.6
Broken Access Control vulnerability
ZohoCorp ManageEngine Applications Manager versions 182200 and below were vulnerable to a permissions validation issue that allowed low-privileged users to execute administrator-configured MBean actions on monitors outside their assigned scope.
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High 8.8
Authentication Bypass vulnerability
ZohoCorp ManageEngine OpManager versions 12.8.710 and below with the Application Manager Plugin enabled were vulnerable to an Authentication Bypass vulnerability.
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High 8.8
Reachy Mini daemon allows unauthenticated remote code execution through the app installation endpoint
The Reachy Mini daemon exposes an HTTP API for managing the robot. Its app installation endpoint, POST /apps/install in src/reachy_mini/daemon/app/routers/apps.py, has no authentication. The handler's only dependency is Depends(get_app_manager), which just ha…
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High 8.6
MCP Atlassian: Unauthenticated arbitrary local file read via upload_attachment file_path, chained with missing auth on streamable-http transport
MCP Atlassian is a Model Context Protocol (MCP) server for Atlassian products (Confluence and Jira). Prior to 0.22.0, the streamable HTTP transport accepts requests without a user identity and falls back to operator credentials, while upload_attachment accept…
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High 7.1
Unauthenticated /enterprise/create-user mints lifetime top-tier organizations and discloses their API key
An HTTP endpoint intended for provisioning enterprise and reseller organisations is reachable without any session. The authentication middleware is bound only to an explicit list of controllers, and the enterprise controller is not on that list, so no authent…
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High 8.3
NVIDIA Infrastructure Controller for Linux contains a vulnerability where an attacker could cause missing authenticatio…
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High 8.6
Authentication bypass vulnerability
Zohocorp ManageEngine ADSelfService Plus versions before build 7001 are vulnerable to an authentication bypass vulnerability in the REST API.
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High 7.7
DesktopSMS 1.11.0 Unauthorized Access via Local Service
DesktopSMS 1.11.0 by MrPear contains an unauthorized access vulnerability that allows local attackers to transmit SMS, retrieve SMS-derived content, and persist an attacker-selected paired identity by interacting with the application's local service without a…
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High 7.1
The graph.UDF in FalkorDB (Redis module) v4.20.1 to v4.20.4 is not registered as a write command, leading to unexpected…
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High 7.3
Forget-C Jellyfish AI Short Drama Studio FastAPI dependencies.py missing authentication
A vulnerability was identified in Forget-C Jellyfish AI Short Drama Studio 0.1.0-alpha/0.2.0/0.3.0/0.3.1/0.3.2. This affects an unknown function of the file backend/app/dependencies.py of the component FastAPI. The manipulation leads to missing authentication…
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High 8.8
ToolHive: containerized MCP servers can reach host services via host.docker.internal, enabling lateral movement
ToolHive is a utility designed to simplify the deployment and management of Model Context Protocol servers. Prior to ToolHive CLI 0.30.1 and ToolHive Studio 0.38.0, locally run MCP server containers use the default network permission profile without network i…
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High 7.5
CareCam CM2507 Missing Authentication for Critical Function
CareCam CM2507 IP cameras do not require authentication for access to its network video streaming service. An unauthenticated attacker with network access to the affected device could retrieve live camera video.
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High 8.7
NASA CryptoLib 1.5.0 - TC receive path accepts Security Associations from the wrong GVCID
NASA CryptoLib 1.5.0 contains an authentication downgrade vulnerability in the Telecommand (TC) receive path. The receiver selects the Security Association used for SDLS processing solely from the SPI field inside the incoming frame, but it does not verify th…
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High 8.8
MCP Documentation Server: Web UI API binds to all interfaces without authentication by default
MCP Documentation Server is a local-first document management and semantic search server for AI coding agents. From 1.13.0 until 1.13.1, the automatically started Web UI in src/server.ts calls startWebServer in src/web-server.ts with START_WEB_UI enabled by d…
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High 8.1
NetLicensing MCP Server: Unauthenticated Use of Server-Side NetLicensing API Key in HTTP Mode
NetLicensing MCP Server is a natural-language interface that enables agentic applications to manage the software-licensing lifecycle in Labs64 NetLicensing. Prior to 0.1.6, network-reachable HTTP transport requests to /mcp that omit x-netlicensing-api-key, Au…
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High 8.6
SGLang through 0.5.19 Unauthenticated Route Poisoning via PUT endpoint
SGLang through 0.5.19 in prefill/decode disaggregation mode contains an unauthenticated PUT /route endpoint on the prefill bootstrap service that allows attackers to poison the KV transfer routing table. Attackers can supply arbitrary rank_ip and rank_port va…
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High 8.1
Dell OpenManage Server Administrator, versions prior to 11.1.0.3, contains a Missing Authentication for Critical Functi…
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High 8.8
To Do List Member 1.4 - 1.6 - Unauthenticated Stored XSS, File Listing and Deletion via Unprotected Upload Handler
The To Do List Member WordPress plugin from 1.4 through 1.6 ships a file upload endpoint that does not load WordPress and therefore applies no authentication, capability or nonce check of any kind, and validates only the name of an uploaded file rather than i…
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High 7.5
Cisco Secure Firewall Management Center Software Information Disclosure and Disk Denial of Service Vulnerability
A vulnerability in a critical API for Cisco Secure FMC Software could allow an unauthenticated, remote attacker to download sensitive files and use unbounded disk space. This vulnerability exists because a critical API lacks authentication. An attacker c…
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High 8.2
SigNoz 0.88.0 through 0.141.0 - Missing Authentication on Trace Funnel Analytics Endpoints
SigNoz versions 0.88.0 through 0.141.0 fail to apply authorization wrappers to trace-funnel analytics endpoints in the HTTP handler. Unauthenticated attackers can submit arbitrary funnel definitions to retrieve trace analytics including identifiers, durations…
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High 7.5
Control iD iDSecure Unauthenticated Denial of Service
Control iD iDSecure versions prior to 4.8.3.0 are affected by an unauthenticated Denial of Service. The /api/license/restartService endpoint is reachable without authentication and invokes an internal routine that terminates the iDSecure service process and r…
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High 7.4
djust's observability endpoints are network-exposed: the localhost gate is an opt-in middleware the docs omit, and the views enforce only DEBUG
djust provides Phoenix LiveView-style reactive server-side rendering for Django with Rust-powered performance. Prior to version 1.0.7, djust's observability endpoints expose live view/session state and a remote method-invocation surface (`eval_handler`). The …
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High 8.8
Nozomi Networks Labs identified a CWE-306: Missing Authentication for Critical Function vulnerability in the edgserver …
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High 7.1
Config disclosure in T-Mobile 5G Box IDU routers
WNC T-Mobile 5G Box IDU router is vulnerable to improper access control. The vulnerability exists in the wnc_maccheck.cgi endpoint, which is accessible without authentication. It allows a remote attacker to retrieve sensitive configuration data, including the…
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High 7.5
XikeStor Layer3 switches miss authentication for downloading configuration data. Unauthenticated attacker may retrieve …
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High 8.8
Missing Authentication for Critical Function in Digital Watchdog VMAX DVR and NVR Product Lineups
The affected products are missing authentication for a critical function, which could allow an attacker to run as root and pass received bytes directly to a system command.
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High 7.5
`tts-be` application has a Broken Access Control vulnerability
`tts-be` is a backend for a timetable selector that aims to help students better choose their class schedules. Versions prior to 2.1.0 have a Broken Access Control vulnerability across several API endpoints (such as `/api/student/{id}/photo` and `/api/course_…
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High 7.5
Vulnerability in the Oracle Hyperion Financial Management product of Oracle Hyperion (component: Security). The support…