Common Weakness Enumeration

CWE-306

Allowed

Missing Authentication for Critical Function

Abstraction: Base · Status: Draft

The product does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources.

4553 vulnerabilities reference this CWE, most recent first.

CVE-2026-76439 (GCVE-0-2026-76439)

Vulnerability from cvelistv5 – Published: 2026-09-16 20:17 – Updated: 2026-09-18 14:46
VLAI
Title
Cisco Identity Services Engine Event Injection Vulnerability
Summary
A vulnerability in the endpoint posture status reporting functionality of the guest portal web application of Cisco ISE could allow an unauthenticated, remote attacker to submit forged posture status events into the endpoint posture pipeline. This vulnerability is due to insufficient authentication on an internal interface that is exposed through the guest portal. An attacker could exploit this vulnerability by sending a crafted request to an affected system. A successful exploit could allow the attacker to manipulate the posture status on the affected system.
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-18 14:39 UTC
CWE
  • CWE-306 - Missing Authentication for Critical Function
Impacted products
Vendor Product Version
Cisco Cisco Identity Services Engine Software Affected: 3.1.0
Affected: 3.1.0 p1
Affected: 3.1.0 p3
Affected: 3.1.0 p2
Affected: 3.2.0
Affected: 3.1.0 p4
Affected: 3.1.0 p5
Affected: 3.2.0 p1
Affected: 3.1.0 p6
Affected: 3.2.0 p2
Affected: 3.1.0 p7
Affected: 3.3.0
Affected: 3.2.0 p3
Affected: 3.2.0 p4
Affected: 3.1.0 p8
Affected: 3.2.0 p5
Affected: 3.2.0 p6
Affected: 3.1.0 p9
Affected: 3.3 Patch 2
Affected: 3.3 Patch 1
Affected: 3.3 Patch 3
Affected: 3.4.0
Affected: 3.2.0 p7
Affected: 3.3 Patch 4
Affected: 3.4 Patch 1
Affected: 3.1.0 p10
Affected: 3.3 Patch 5
Affected: 3.3 Patch 6
Affected: 3.4 Patch 2
Affected: 3.3 Patch 7
Affected: 3.4 Patch 3
Affected: 3.5.0
Affected: 3.4 Patch 4
Affected: 3.3 Patch 8
Affected: 3.2 Patch 8
Affected: 3.5 Patch 1
Affected: 3.3 Patch 9
Affected: 3.2 Patch 9
Affected: 3.4 Patch 5
Affected: 3.5 Patch 3
Affected: 3.5 Patch 2
Affected: 3.3 Patch 10
Affected: 3.3 Patch 11
Affected: 3.4 Patch 6
Affected: 3.2 Patch 10
Affected: 3.1.0 p72
Affected: 3.1.0 p11
Create a notification for this product.
Cisco Cisco ISE Passive Identity Connector Affected: 3.2.0
Affected: 3.1.0
Affected: 3.3.0
Affected: 3.4.0
Affected: 3.5.0
Create a notification for this product.
Show details on NVD website

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CVE-2026-76355 (GCVE-0-2026-76355)

Vulnerability from cvelistv5 – Published: 2026-08-19 21:34 – Updated: 2026-08-26 15:20
VLAI
Title
Unauthenticated Information Disclosure through an Edge Processor Service Endpoint in Splunk Enterprise
Summary
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SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-26 15:17 UTC
CWE
  • CWE-306 - The software does not perform any authentication for functionality that requires a provable user identity or consumes a significant amount of resources.
Impacted products
Vendor Product Version
Splunk Splunk Enterprise Affected: 10.4 , < 10.4.2 (custom)
Create a notification for this product.
Date Public
2026-08-19 00:00
Show details on NVD website

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CVE-2026-76157 (GCVE-0-2026-76157)

Vulnerability from cvelistv5 – Published: 2026-08-21 01:47 – Updated: 2026-08-21 13:08
VLAI
Title
Datiphy Data Management Center - Missing Authentication for Critical Function
Summary
Missing authentication for a critical function in the upload API endpoint of Datiphy Data Management Center from v8.3.0 through v8.5.1 allows an unauthenticated remote attacker to upload arbitrary files to the server's configured upload directory.
SSVC
Exploitation: none Automatable: yes Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-21 13:07 UTC
CWE
  • CWE-306 - Missing authentication for critical function
References
URL Tags
https://zuso.ai/advisory third-party-advisory
Impacted products
Vendor Product Version
Datiphy Inc. Data Management Center Affected: v8.3.0 , ≤ v8.5.1 (custom)
Create a notification for this product.
Show details on NVD website

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CVE-2026-76142 (GCVE-0-2026-76142)

Vulnerability from cvelistv5 – Published: 2026-10-01 04:53 – Updated: 2026-10-01 15:58
VLAI
Title
Genians, Inc. Genian NAC/ZTNA Improper Access Control on the Internal Interface
Summary
Insufficient authentication and access control on the internal-only IPC SOAP endpoint of the Genian NAC/ZTNA policy server allows an unauthenticated attacker to invoke internal functions
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-01 15:58 UTC
CWE
  • CWE-284 - Improper Access Control
  • CWE-306 - Missing Authentication for Critical Function
Credits
Show details on NVD website

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CVE-2026-76137 (GCVE-0-2026-76137)

Vulnerability from cvelistv5 – Published: 2026-08-21 02:02 – Updated: 2026-08-21 12:54
VLAI
Summary
Missing authentication for critical function vulnerability exists in VOCALOID6. Any process running under the same local user account as a running VOCALOID6 Editor instance may escalate privileges via a local named pipe.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-21 12:53 UTC
CWE
  • CWE-306 - Missing authentication for critical function
Impacted products
Vendor Product Version
Yamaha Corporation VOCALOID6 Affected: 0 , ≤ 6.13.1 (semver)
Create a notification for this product.
Show details on NVD website

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CVE-2026-75969 (GCVE-0-2026-75969)

Vulnerability from cvelistv5 – Published: 2026-09-30 16:27 – Updated: 2026-09-30 20:01
VLAI
Title
PTZOptics Missing Authentication in Firmware Upload
Summary
Missing authentication for critical function vulnerability for all PTZOptics cameras and the Firmware Upgrade Tool - Firmware Update modules. A missing authentication vulnerability in the firmware update mechanism of affected PTZOptics cameras allows an unauthenticated user to install modified firmware on the device without administrator credentials. This vulnerability allows attackers to upload modified firmware to the device without admin credentials. This issue affects: * Move 4K 12X before: 0.0.98 * Move 4K 20X before: 0.1.33 * Move 4K 30X before: 2.1.17 * Link 4K 12X before: 0.0.99 * Link 4K 20X before: 0.1.37 * Link 4K 30X before: 2.1.18 * Move SE 12X before: 9.1.66 * Move SE 20X before: 9.1.44 * Move SE 30X before: 9.1.46 * Studio 4K 12X before: 8.3.32 * Studio 4K 20X before: 8.3.32 * Studio SE 12X before: 8.3.32 * Studio SE 20X before: 8.3.32 * All Generation 2 cameras, including: PT12X-SDI-GY-G2, PT12X-SDI-WH-G2, PT12X-NDI-GY-G2, PT12X-NDI-WH-G2; PT12X-USB-GY-G2, PT12X-USB-WH-G2; PT20X-SDI-GY-G2, PT20X-SDI-WH-G2, PT20X-NDI-GY-G2, PT20X-NDI-WH-G2; PT20X-USB-GY-G2, PT20X-USB-WH-G2; PT30X-SDI-GY-G2, PT30X-SDI-WH-G2, PT30X-NDI-GY-G2, PT30X-NDI-WH-G2; PTVL-ZCAM, PTVL-NDI-ZCAM; PTEPTZ-ZCAM-G2, PTEPTZ-NDI-ZCAM-G2; PT12X-ZCAM, PT12X-NDI-ZCAM; PT20X-ZCAM, PT20X-NDI-ZCAM; Studio Pro - All versions * Upgrade Tool - All versions
SSVC
Exploitation: none Automatable: yes Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-30 18:30 UTC
CWE
  • CWE-306 - Missing authentication for critical function
References
Impacted products
Vendor Product Version
PTZOptics Move 4K 12X Affected: 0 , < 0.0.98 (custom)
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PTZOptics Move 4K 20X Affected: 0 , < 0.1.33 (custom)
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PTZOptics Move 4K 30X Affected: 0 , < 2.1.17 (custom)
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PTZOptics Link 4K 12X Affected: 0 , < 0.0.99 (custom)
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PTZOptics Link 4K 20X Affected: 0 , < 0.1.37 (custom)
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PTZOptics Link 4K 30X Affected: 0 , < 2.1.18 (custom)
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PTZOptics Move SE 12X Affected: 0 , < 9.1.66 (custom)
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PTZOptics Move SE 20X Affected: 0 , < 9.1.44 (custom)
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PTZOptics Move SE 30X Affected: 0 , < 9.1.46 (custom)
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PTZOptics Studio 4K 12X Affected: 0 , < 8.3.32 (custom)
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PTZOptics Studio 4K 20X Affected: 0 , < 8.3.32 (custom)
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PTZOptics Studio SE 12X Affected: 0 , < 8.3.32 (custom)
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PTZOptics Studio SE 20X Affected: 0 , < 8.3.32 (custom)
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PTZOptics PT12X-SDI-GY-G2, PT12X-SDI-WH-G2, PT12X-NDI-GY-G2, PT12X-NDI-WH-G2 Affected: 0 (custom)
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PTZOptics PT12X-USB-GY-G2, PT12X-USB-WH-G2 Affected: 0 (custom)
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PTZOptics PT20X-SDI-GY-G2, PT20X-SDI-WH-G2, PT20X-NDI-GY-G2, PT20X-NDI-WH-G2 Affected: 0 (custom)
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PTZOptics PT20X-USB-GY-G2, PT20X-USB-WH-G2 Affected: 0 (custom)
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PTZOptics PT30X-SDI-GY-G2, PT30X-SDI-WH-G2, PT30X-NDI-GY-G2, PT30X-NDI-WH-G2 Affected: 0 (custom)
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PTZOptics PTVL-ZCAM, PTVL-NDI-ZCAM Affected: 0 (custom)
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PTZOptics PTEPTZ-ZCAM-G2, PTEPTZ-NDI-ZCAM-G2 Affected: 0 (custom)
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PTZOptics PT12X-ZCAM, PT12X-NDI-ZCAM Affected: 0 (custom)
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PTZOptics PT20X-ZCAM, PT20X-NDI-ZCAM Affected: 0 (custom)
Create a notification for this product.
PTZOptics Studio Pro Affected: 0
Create a notification for this product.
PTZOptics Upgrade Tool Affected: 0 (custom)
Create a notification for this product.
Show details on NVD website

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CVE-2026-75919 (GCVE-0-2026-75919)

Vulnerability from cvelistv5 – Published: 2026-08-19 14:01 – Updated: 2026-08-19 15:30
VLAI
Title
phpMyFAQ before 4.1.7 Authentication Bypass via Setup API
Summary
phpMyFAQ before 4.1.7 contains an authentication bypass vulnerability in SetupController that allows unauthenticated attackers to run database migrations and create configuration backups when maintenance mode is enabled. Attackers can call POST /api/setup/update-database and POST /api/setup/backup endpoints to execute database updates, disable maintenance mode, and extract database credentials from generated ZIP archives.
SSVC
Exploitation: poc Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-19 15:30 UTC
CWE
  • CWE-306 - Missing Authentication for Critical Function
References
Impacted products
Vendor Product Version
thorsten phpMyFAQ Affected: 0 , < 4.1.7 (semver)
Unaffected: 4.1.7 (semver)
    cpe:2.3:a:phpmyfaq:phpmyfaq:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-08-04 00:00
Show details on NVD website

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CVE-2026-75854 (GCVE-0-2026-75854)

Vulnerability from cvelistv5 – Published: 2026-08-18 11:19 – Updated: 2026-08-18 14:18
VLAI
Title
ArcadeDB Redis Wire-Protocol Plugin Missing Authentication
Summary
ArcadeDB versions before 26.8.1 contain a missing authentication vulnerability in the Redis wire-protocol plugin that allows unauthenticated attackers to read, write, and delete data. Attackers can connect to the Redis port and execute arbitrary commands against any database on the server without providing credentials, bypassing all security gates.
SSVC
Exploitation: poc Automatable: yes Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-18 14:17 UTC
CWE
  • CWE-306 - Missing Authentication for Critical Function
References
Impacted products
Vendor Product Version
ArcadeData arcadedb Affected: 0 , < 26.8.1 (semver)
Unaffected: 26.8.1 (semver)
Create a notification for this product.
Date Public
2026-08-04 00:00
Show details on NVD website

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CVE-2026-75852 (GCVE-0-2026-75852)

Vulnerability from cvelistv5 – Published: 2026-08-18 11:19 – Updated: 2026-08-18 13:35
VLAI
Title
ArcadeDB MongoDB wire protocol authentication bypass cross-database
Summary
ArcadeDB versions before 26.8.1 fail to enforce SASL authentication on data commands in the MongoDB wire-protocol plugin. Unauthenticated attackers can issue insert, find, update, delete, and create commands against any database by connecting to port 27017 without credentials.
SSVC
Exploitation: none Automatable: yes Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-18 12:56 UTC
CWE
  • CWE-306 - Missing Authentication for Critical Function
References
Impacted products
Vendor Product Version
ArcadeData arcadedb Affected: 0 , < 26.8.1 (semver)
Unaffected: 26.8.1 (semver)
Create a notification for this product.
Date Public
2026-08-04 00:00
Show details on NVD website

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CVE-2026-75825 (GCVE-0-2026-75825)

Vulnerability from cvelistv5 – Published: 2026-09-23 12:35 – Updated: 2026-09-24 03:55
VLAI
Title
Authentication Bypass vulnerability
Summary
ZohoCorp ManageEngine OpManager versions 12.8.710 and below with the Application Manager Plugin enabled were vulnerable to an Authentication Bypass vulnerability.
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-23 00:00 UTC
CWE
  • CWE-306 - Missing authentication for critical function
Impacted products
Vendor Product Version
Zohocorp ManageEngine OpManager Affected: 0 , < 12.8.711 (custom)
    cpe:2.3:a:zohocorp:manageengine_opmanager:*:*:*:*:*:*:*:*
Create a notification for this product.
Show details on NVD website

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Mitigation
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.
Mitigation MIT-15
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.

Mitigation
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.
Mitigation MIT-4.5
Architecture and Design

Strategy: Libraries or Frameworks

  • 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].
Mitigation
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].

CAPEC-12: Choosing Message Identifier

This pattern of attack is defined by the selection of messages distributed via multicast or public information channels that are intended for another client by determining the parameter value assigned to that client. This attack allows the adversary to gain access to potentially privileged information, and to possibly perpetrate other attacks through the distribution means by impersonation. If the channel/message being manipulated is an input rather than output mechanism for the system, (such as a command bus), this style of attack could be used to change the adversary's identifier to more a privileged one.

CAPEC-166: Force the System to Reset Values

An attacker forces the target into a previous state in order to leverage potential weaknesses in the target dependent upon a prior configuration or state-dependent factors. Even in cases where an attacker may not be able to directly control the configuration of the targeted application, they may be able to reset the configuration to a prior state since many applications implement reset functions.

CAPEC-216: Communication Channel Manipulation

An adversary manipulates a setting or parameter on communications channel in order to compromise its security. This can result in information exposure, insertion/removal of information from the communications stream, and/or potentially system compromise.

CAPEC-36: Using Unpublished Interfaces or Functionality

An adversary searches for and invokes interfaces or functionality that the target system designers did not intend to be publicly available. If interfaces fail to authenticate requests, the attacker may be able to invoke functionality they are not authorized for.

CAPEC-62: Cross Site Request Forgery

An attacker crafts malicious web links and distributes them (via web pages, email, etc.), typically in a targeted manner, hoping to induce users to click on the link and execute the malicious action against some third-party application. If successful, the action embedded in the malicious link will be processed and accepted by the targeted application with the users' privilege level. This type of attack leverages the persistence and implicit trust placed in user session cookies by many web applications today. In such an architecture, once the user authenticates to an application and a session cookie is created on the user's system, all following transactions for that session are authenticated using that cookie including potential actions initiated by an attacker and simply "riding" the existing session cookie.