Common Weakness Enumeration
CWE-306
AllowedMissing 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.
3442 vulnerabilities reference this CWE, most recent first.
CVE-2026-27846 (GCVE-0-2026-27846)
Vulnerability from cvelistv5 – Published: 2026-02-25 15:03 – Updated: 2026-02-25 18:36
VLAI
EPSS
VEX
Title
Missing authentication in Linksys MR9600, Linksys MX4200
Summary
Due to missing authentication, a user with physical access to the device can misuse the mesh functionality for adding a new mesh device to the network
to gain access to sensitive information, including the password for admin access to the web interface and the Wi-Fi passwords.This issue affects MR9600: 1.0.4.205530; MX4200: 1.0.13.210200.
Severity
6.2 (Medium)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-306 - Missing Authentication for Critical Function
Assigner
References
1 reference
| URL | Tags |
|---|---|
| https://www.syss.de/fileadmin/dokumente/Publikati… | third-party-advisorytechnical-description |
Impacted products
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CVE-2026-27843 (GCVE-0-2026-27843)
Vulnerability from cvelistv5 – Published: 2026-04-23 23:54 – Updated: 2026-04-24 13:10
VLAI
EPSS
VEX
Title
SenseLive X3050 Missing authentication for critical function
Summary
A vulnerability exists in SenseLive X3050's web management interface that allows critical configuration parameters to be modified without sufficient authentication or server-side validation. By applying unsupported or disruptive values to recovery mechanisms and network settings, an attacker can induce a persistent lockout state. Because the device lacks a physical reset button, recovery requires specialized technical access via the console to perform a factory reset, resulting in a total denial-of-service for the gateway and its connected RS-485 downstream systems.
Severity
9.1 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-306 - Missing authentication for critical function
Assigner
References
Date Public
2026-04-21 16:00
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CVE-2026-27772 (GCVE-0-2026-27772)
Vulnerability from cvelistv5 – Published: 2026-02-27 00:09 – Updated: 2026-03-05 20:45
VLAI
EPSS
VEX
Title
EV Energy ev.energy Missing Authentication for Critical Function
Summary
WebSocket endpoints lack proper authentication mechanisms, enabling
attackers to perform unauthorized station impersonation and manipulate
data sent to the backend. An unauthenticated attacker can connect to the
OCPP WebSocket endpoint using a known or discovered charging station
identifier, then issue or receive OCPP commands as a legitimate charger.
Given that no authentication is required, this can lead to privilege
escalation, unauthorized control of charging infrastructure, and
corruption of charging network data reported to the backend.
Severity
9.4 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
Credits
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CVE-2026-27767 (GCVE-0-2026-27767)
Vulnerability from cvelistv5 – Published: 2026-02-26 23:57 – Updated: 2026-03-05 20:43
VLAI
EPSS
VEX
Title
SWITCH EV swtchenergy.com Missing Authentication for Critical Function
Summary
WebSocket endpoints lack proper authentication mechanisms, enabling
attackers to perform unauthorized station impersonation and manipulate
data sent to the backend. An unauthenticated attacker can connect to the
OCPP WebSocket endpoint using a known or discovered charging station
identifier, then issue or receive OCPP commands as a legitimate charger.
Given that no authentication is required, this can lead to privilege
escalation, unauthorized control of charging infrastructure, and
corruption of charging network data reported to the backend.
Severity
9.4 (Critical)
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-306 - Missing Authentication for Critical Function
Assigner
References
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| SWITCH EV | swtchenergy.com |
Affected:
All versions
|
Credits
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CVE-2026-27604 (GCVE-0-2026-27604)
Vulnerability from cvelistv5 – Published: 2026-06-23 14:25 – Updated: 2026-06-23 15:11
VLAI
EPSS
VEX
Title
FOSSBilling: Improper API Role Validation (system) Enables Unauthenticated Access to Privileged Admin Functions
Summary
FOSSBilling is a free, open-source billing and client management system. Starting in version 0.5.4 and prior to version 0.8.0, an authorization bypass in the API role handling allows unauthenticated access to privileged `/api/system/*` endpoints. Because `system` resolves to the cron admin identity, attackers can invoke admin API methods without valid credentials, session, or CSRF token. Version 0.8.0 patches the issue. Some workarounds are available. Block external access to `/api/system/*` at reverse proxy/WAF, restrict API access by trusted source IPs only (`api.allowed_ips`), rotate all admin/client API tokens immediately, invalidate active sessions and reset high-privilege credentials, and/or review API request logs for suspicious `/api/system/` access and treat as potential incident.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/FOSSBilling/FOSSBilling/securi… | x_refsource_CONFIRM |
| https://github.com/FOSSBilling/FOSSBilling/securi… | x_refsource_MISC |
| https://www.vulncheck.com/blog/fossbilling-auth-b… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| FOSSBilling | FOSSBilling |
Affected:
>= 0.5.4, < 0.8.0
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CVE-2026-27603 (GCVE-0-2026-27603)
Vulnerability from cvelistv5 – Published: 2026-03-06 04:07 – Updated: 2026-03-06 16:08
VLAI
EPSS
VEX
Title
Chartbrew: Unauthenticated Chart Filter Endpoint: POST /project/:project_id/chart/:chart_id/filter missing verifyToken + checkPermissions
Summary
Chartbrew is an open-source web application that can connect directly to databases and APIs and use the data to create charts. Prior to version 4.8.4, the chart filter endpoint POST /project/:project_id/chart/:chart_id/filter is missing both verifyToken and checkPermissions middleware, allowing unauthenticated users to access chart data from any team/project. This issue has been patched in version 4.8.4.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-306 - Missing Authentication for Critical Function
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/chartbrew/chartbrew/security/a… | x_refsource_CONFIRM |
| https://github.com/chartbrew/chartbrew/releases/t… | x_refsource_MISC |
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CVE-2026-27595 (GCVE-0-2026-27595)
Vulnerability from cvelistv5 – Published: 2026-02-25 02:21 – Updated: 2026-02-27 17:14
VLAI
EPSS
VEX
Title
Parse Dashboard has incomplete authentication on AI Agent endpoint
Summary
Parse Dashboard is a standalone dashboard for managing Parse Server apps. In versions 7.3.0-alpha.42 through 9.0.0-alpha.7, the AI Agent API endpoint (POST `/apps/:appId/agent`) has multiple security vulnerabilities that, when chained, allow unauthenticated remote attackers to perform arbitrary read and write operations against any connected Parse Server database using the master key. The agent feature is opt-in; dashboards without an agent config are not affected. The fix in version 9.0.0-alpha.8 adds authentication, CSRF validation, and per-app authorization middleware to the agent endpoint. Read-only users are restricted to the `readOnlyMasterKey` with write permissions stripped server-side. A cache key collision between master key and read-only master key was also corrected. As a workaround, remove or comment out the agent configuration block from your Parse Dashboard configuration.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-306 - Missing Authentication for Critical Function
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/parse-community/parse-dashboar… | x_refsource_CONFIRM |
| https://github.com/parse-community/parse-dashboar… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| parse-community | parse-dashboard |
Affected:
>= 7.3.0-alpha.42, < 9.0.0-alpha.8
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CVE-2026-27584 (GCVE-0-2026-27584)
Vulnerability from cvelistv5 – Published: 2026-02-24 14:59 – Updated: 2026-02-27 20:48
VLAI
EPSS
VEX
Title
ActualBudget server is Missing Authentication for SimpleFIN and Pluggy AI bank sync endpoints
Summary
Actual is a local-first personal finance tool. Prior to version 26.2.1, missing authentication middleware in the ActualBudget server component allows any unauthenticated user to query the SimpleFIN and Pluggy.ai integration endpoints and read sensitive bank account balance and transaction information. This vulnerability allows an unauthenticated attacker to read the bank account balance and transaction history of ActualBudget users. This vulnerability impacts all ActualBudget Server users with the SimpleFIN or Pluggy.ai integrations configured. The ActualBudget Server instance must be reachable over the network. Version 26.2.1 patches the issue.
Severity
SSVC
Exploitation: poc
Automatable: yes
Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
- CWE-306 - Missing Authentication for Critical Function
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/actualbudget/actual/security/a… | x_refsource_CONFIRM |
| https://github.com/actualbudget/actual/commit/ea9… | x_refsource_MISC |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| actualbudget | actual |
Affected:
< 26.2.1
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CVE-2026-27509 (GCVE-0-2026-27509)
Vulnerability from cvelistv5 – Published: 2026-02-26 18:56 – Updated: 2026-05-26 11:52
VLAI
EPSS
VEX
Title
Unitree Go2 Missing DDS Authentication Enables Adjacent RCE
Summary
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, unauthenticated attacker can join DDS domain 0 and publish a crafted message (api_id=1002) containing arbitrary Python, which the robot writes to disk under /unitree/etc/programming/ and binds to a physical controller keybinding. When the keybinding is pressed, the code executes as root and the binding persists across reboots.
Severity
SSVC
Exploitation: poc
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-306 - Missing Authentication for Critical Function
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://boschko.ca/unitree-go2-rce/ | technical-descriptionexploit |
| https://shop.unitree.com/products/unitree-go2 | product |
| https://www.vulncheck.com/advisories/unitree-go2-… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| UnitreeRobotics | Unitree Go2 |
Affected:
1.1.7 , ≤ 1.1.9
(semver)
Affected: 1.1.11 (semver) |
Credits
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CVE-2026-27471 (GCVE-0-2026-27471)
Vulnerability from cvelistv5 – Published: 2026-02-21 06:38 – Updated: 2026-02-24 18:53
VLAI
EPSS
VEX
Title
ERP: Document access through endpoints due to missing validation
Summary
ERP is a free and open source Enterprise Resource Planning tool. In versions up to 15.98.0 and 16.0.0-rc.1 and through 16.6.0, certain endpoints lacked access validation which allowed for unauthorized document access. This issue has been fixed in versions 15.98.1 and 16.6.1.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
Assigner
References
2 references
| URL | Tags |
|---|---|
| https://github.com/frappe/erpnext/security/adviso… | x_refsource_CONFIRM |
| https://github.com/frappe/erpnext/commit/78fc9424… | x_refsource_MISC |
Impacted products
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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.