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
230 results · Clear filters · Feed
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Critical 9.3
Commvault Command Center Innovation Release <= 11.38.25 Unathenticated Install Package Path Traversal
The Commvault Command Center Innovation Release allows an unauthenticated actor to upload ZIP files that represent install packages that, when expanded by the target server, are vulnerable to path traversal vulnerability that can result in Remote Code Executi…
KEV May 2, 2025 -
Critical 10.0
Erlang/OTP SSH Vulnerable to Pre-Authentication RCE
Erlang/OTP is a set of libraries for the Erlang programming language. Prior to versions OTP-27.3.3, OTP-26.2.5.11, and OTP-25.3.2.20, a SSH server may allow an attacker to perform unauthenticated remote code execution (RCE). By exploiting a flaw in SSH protoc…
KEV Jun 9, 2025 -
Critical 9.8
Langflow < 1.3.0 Unauthenticated RCE via /api/v1/validate/code
Langflow versions prior to 1.3.0 are susceptible to code injection in the /api/v1/validate/code endpoint. A remote and unauthenticated attacker can send crafted HTTP requests to execute arbitrary code.
KEV May 5, 2025 -
Medium 6.5CVE-2024-57725 Public exploit
An issue in the Arcadyan Livebox Fibra PRV3399B_B_LT allows a remote or local attacker to modify the GPON link value wi…
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Critical 10.0CVE-2025-24865 Public exploit
mySCADA myPRO Manager Missing Authentication for Critical Function
The administrative web interface of mySCADA myPRO Manager can be accessed without authentication which could allow an unauthorized attacker to retrieve sensitive information and upload files without the associated password.
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Medium 5.9
PAN-OS: Authentication Bypass in the Management Web Interface
An authentication bypass in the Palo Alto Networks PAN-OS software enables an unauthenticated attacker with network access to the management web interface to bypass the authentication otherwise required by the PAN-OS management web interface and invoke certai…
KEV Feb 18, 2025 -
Critical 9.8CVE-2024-9644 Public exploit
Four-Faith F3x36 bapply.cgi Auth Bypass
The Four-Faith F3x36 router using firmware v2.0.0 is vulnerable to an authentication bypass vulnerability in the administrative web server. Authentication is not enforced on some administrative functionality when using the "bapply.cgi" endpoint instead of the…
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Critical 9.8
NETGEAR DGN setup.cgi OS Command Injection
NETGEAR DGN1000 before 1.1.00.48 is vulnerable to an authentication bypass vulnerability. A remote and unauthenticated attacker can execute arbitrary operating system commands as root by sending crafted HTTP requests to the setup.cgi endpoint. This vulnerabil…
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Critical 9.8
ProjectSend Unauthenticated Configuration Modification
ProjectSend versions prior to r1720 are affected by an improper authentication vulnerability. Remote, unauthenticated attackers can exploit this flaw by sending crafted HTTP requests to options.php, enabling unauthorized modification of the application's conf…
KEV Dec 3, 2024 -
High 8.1CVE-2024-5721 Public exploit
Logsign Unified SecOps Platform Missing Authentication Remote Code Execution Vulnerability
Logsign Unified SecOps Platform Missing Authentication Remote Code Execution Vulnerability. This vulnerability allows remote attackers to execute arbitrary code on affected installations of Logsign Unified SecOps Platform. Authentication is not required to ex…
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Medium 5.9
PAN-OS: Authentication Bypass in the Management Web Interface (PAN-SA-2024-0015)
An authentication bypass in Palo Alto Networks PAN-OS software enables an unauthenticated attacker with network access to the management web interface to gain PAN-OS administrator privileges to perform administrative actions, tamper with the configuration, or…
KEV Nov 18, 2024 -
Critical 10.0
upgrademysqlstatus in databases/views.py in CyberPanel (aka Cyber Panel) before 5b08cd6 allows remote attackers to bypa…
KEV Nov 7, 2024 -
Critical 9.8
A missing authentication for critical function in FortiManager 7.6.0, FortiManager 7.4.0 through 7.4.4, FortiManager 7.…
KEV Oct 23, 2024 -
High 8.4CVE-2022-23862 Public exploit
A Local Privilege Escalation issue was discovered in Y Soft SAFEQ 6 Build 53. The SafeQ JMX service running on port 969…
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Critical 9.3CVE-2024-6592 Public exploit
WatchGuard Firebox Single Sign-On Agent Protocol Authorization Bypass
An incorrect authorization vulnerability in the protocol communication between the WatchGuard Authentication Gateway (aka Single Sign-On Agent) on Windows and the WatchGuard Single Sign-On Client on Windows and MacOS allows an attacker with network access to …
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Medium 4.2CVE-2024-38143 Public exploit
Windows WLAN AutoConfig Service Elevation of Privilege Vulnerability
Windows WLAN AutoConfig Service Elevation of Privilege Vulnerability
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Critical 9.3
Expedition: Missing Authentication Leads to Admin Account Takeover
Missing authentication for a critical function in Palo Alto Networks Expedition can lead to an Expedition admin account takeover for attackers with network access to Expedition. Note: Expedition is a tool aiding in configuration migration, tuning, and enrichm…
KEV Nov 7, 2024 -
Medium 6.5CVE-2024-5947 Public exploit
Deep Sea Electronics DSE855 Configuration Backup Missing Authentication Information Disclosure Vulnerability
Deep Sea Electronics DSE855 Configuration Backup Missing Authentication Information Disclosure Vulnerability. This vulnerability allows network-adjacent attackers to disclose sensitive information on affected installations of Deep Sea Electronics DSE855 devic…
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High 7.6CVE-2024-3661 Public exploit
DHCP routing options can manipulate interface-based VPN traffic
DHCP can add routes to a client’s routing table via the classless static route option (121). VPN-based security solutions that rely on routes to redirect traffic can be forced to leak traffic over the physical interface. An attacker on the same local network …
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High 7.5CVE-2024-21006 Public exploit
Vulnerability in the Oracle WebLogic Server product of Oracle Fusion Middleware (component: Core). Supported versions t…
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Critical 9.8CVE-2024-31218 Public exploit
Missing Authentication for Critical Function in Webhood backend
Webhood is a self-hosted URL scanner used analyzing phishing and malicious sites. Webhood's backend container images in versions 0.9.0 and earlier are subject to Missing Authentication for Critical Function vulnerability. This vulnerability allows an unauthen…
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Critical 10.0CVE-2024-24578 Public exploit
RaspberryMatic Unauthenticated Remote Code Execution vulnerability through HMServer File Upload
RaspberryMatic is an open-source operating system for HomeMatic internet-of-things devices. RaspberryMatic / OCCU prior to version 3.75.6.20240316 contains a unauthenticated remote code execution (RCE) vulnerability, caused by multiple issues within the Java …
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Medium 5.5CVE-2024-22513 Public exploit
Improper Privilege Management in djangorestframework-simplejwt
djangorestframework-simplejwt version 5.3.1 and before is vulnerable to information disclosure. A user can access web application resources even after their account has been disabled due to missing user validation checks via the for_user method.
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Medium 5.7CVE-2024-21306 Public exploit
Microsoft Bluetooth Driver Spoofing Vulnerability
Microsoft Bluetooth Driver Spoofing Vulnerability
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High 7.5CVE-2023-6595 Public exploit
WhatsUp Gold Unauthenticated Access to an API Endpoint
In WhatsUp Gold versions released before 2023.1, an API endpoint was found to be missing an authentication mechanism. It is possible for an unauthenticated attacker to enumerate ancillary credential information stored within WhatsUp Gold.
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Critical 10.0CVE-2023-4699 Public exploit
Arbitrary Command Execution Vulnerability in Mitsubishi Electric proprietary protocol communication of multiple FA products
Missing Authentication for Critical Function vulnerability in Mitsubishi Electric Corporation MELSEC-F Series CPU modules, MELSEC iQ-F Series, MELSEC iQ-R series CPU modules, MELSEC iQ-R series, MELSEC iQ-L series, MELSEC Q series, MELSEC-L series, Mitsubishi…
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Medium 5.3
Junos OS: SRX Series: A vulnerability in J-Web allows an unauthenticated attacker to upload arbitrary files
A Missing Authentication for Critical Function vulnerability in Juniper Networks Junos OS on SRX Series allows an unauthenticated, network-based attacker to cause limited impact to the file system integrity. With a specific request to user.php that doesn't re…
KEV Nov 13, 2023 -
High 7.5
Vulnerability in the PeopleSoft Enterprise PeopleTools product of Oracle PeopleSoft (component: Portal). Supported vers…
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Critical 9.8
Cisco SPA112 2-Port Phone Adapters Remote Command Execution Vulnerability
A vulnerability in the web-based management interface of Cisco SPA112 2-Port Phone Adapters could allow an unauthenticated, remote attacker to execute arbitrary code on an affected device. This vulnerability is due to a missing authentication process within t…
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High 7.5
Vulnerability in the Oracle WebLogic Server product of Oracle Fusion Middleware (component: Core). Supported versions t…
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High 7.5
Vulnerability in Veeam Backup & Replication component allows encrypted credentials stored in the configuration database…
KEV Aug 22, 2023 -
Critical 9.1CVE-2023-27290 Public exploit
IBM Observability with Instana missing authentication
Docker based datastores for IBM Instana (IBM Observability with Instana 239-0 through 239-2, 241-0 through 241-2, and 243-0) do not currently require authentication. Due to this, an attacker within the network could access the datastores with read/write acces…
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Critical 9.8
TerraMaster NAS 4.2.29 and earlier allows remote attackers to discover the administrative password by sending "User-Age…
KEV Feb 10, 2023 -
Critical 9.8
Because the web management interface for Unified Intents' Unified Remote solution does not itself require authenticatio…
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High 7.5
Vulnerability in the Oracle WebLogic Server product of Oracle Fusion Middleware (component: Core). Supported versions t…
KEV May 1, 2023 -
High 7.5CVE-2023-21837 Public exploit
Vulnerability in the Oracle WebLogic Server product of Oracle Fusion Middleware (component: Core). Supported versions t…
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High 7.5CVE-2022-46463 Public exploit
An access control issue in Harbor v1.X.X to v2.5.3 allows attackers to access public and private image repositories wit…
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Critical 9.9CVE-2022-41272 Public exploit
An unauthenticated attacker over the network can attach to an open interface exposed through JNDI by the User Defined S…
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Critical 9.8CVE-2022-45477 Public exploit
Telepad allows remote unauthenticated users to send instructions to the server to execute arbitrary code without any pr…
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High 8.1CVE-2022-39425 Public exploit
Vulnerability in the Oracle VM VirtualBox product of Oracle Virtualization (component: Core). Supported versions that a…