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.
4625 vulnerabilities reference this CWE, most recent first.
GHSA-MH39-5W93-GWQV
Vulnerability from github – Published: 2026-09-11 09:31 – Updated: 2026-09-11 09:31WeenyGenius, a computer lab management system developed by Howyar Technologies, has a Missing Authentication vulnerability. Unauthenticated attackers on the same network can easily spoof student or teacher endpoints. Impersonating a student can disrupt normal classroom operations, whereas impersonating a teacher can induce student computers to initiate connections, thereby gaining remote control over the student endpoints.
{
"affected": [],
"aliases": [
"CVE-2026-89176"
],
"database_specific": {
"cwe_ids": [
"CWE-306"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-09-11T08:16:48Z",
"severity": "HIGH"
},
"details": "WeenyGenius, a computer lab management system developed by Howyar Technologies, has a Missing Authentication vulnerability. Unauthenticated attackers on the same network can easily spoof student or teacher endpoints. Impersonating a student can disrupt normal classroom operations, whereas impersonating a teacher can induce student computers to initiate connections, thereby gaining remote control over the student endpoints.",
"id": "GHSA-mh39-5w93-gwqv",
"modified": "2026-09-11T09:31:23Z",
"published": "2026-09-11T09:31:23Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-89176"
},
{
"type": "WEB",
"url": "https://www.twcert.org.tw/en/cp-139-11200-ffc3c-2.html"
},
{
"type": "WEB",
"url": "https://www.twcert.org.tw/tw/cp-132-11201-658c0-1.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
"type": "CVSS_V4"
}
]
}
GHSA-MHCG-8F2W-MRWX
Vulnerability from github – Published: 2025-03-25 06:30 – Updated: 2025-03-25 06:30A Missing Authentication for Critical Function vulnerability in the GRUB configuration used B&R APROL <4.4-01 may allow an unauthenticated physical attacker to alter the boot configuration of the operating system.
{
"affected": [],
"aliases": [
"CVE-2024-45483"
],
"database_specific": {
"cwe_ids": [
"CWE-306"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-03-25T05:15:39Z",
"severity": "HIGH"
},
"details": "A Missing Authentication for Critical Function vulnerability in the GRUB configuration used B\u0026R APROL \u003c4.4-01 may allow an unauthenticated physical attacker to alter the boot configuration of the operating system.",
"id": "GHSA-mhcg-8f2w-mrwx",
"modified": "2025-03-25T06:30:26Z",
"published": "2025-03-25T06:30:26Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-45483"
},
{
"type": "WEB",
"url": "https://www.br-automation.com/fileadmin/SA24P015-77573c08.pdf"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
"type": "CVSS_V4"
}
]
}
GHSA-MHVR-V5C8-RW24
Vulnerability from github – Published: 2022-05-24 16:56 – Updated: 2024-04-04 01:57eQ-3 Homematic CCU2 before 2.47.18 and CCU3 before 3.47.18 allow Remote Code Execution by unauthenticated attackers with access to the web interface via an HTTP POST request to certain URLs related to the ReGa core process.
{
"affected": [],
"aliases": [
"CVE-2019-16199"
],
"database_specific": {
"cwe_ids": [
"CWE-306"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2019-09-17T21:15:00Z",
"severity": "CRITICAL"
},
"details": "eQ-3 Homematic CCU2 before 2.47.18 and CCU3 before 3.47.18 allow Remote Code Execution by unauthenticated attackers with access to the web interface via an HTTP POST request to certain URLs related to the ReGa core process.",
"id": "GHSA-mhvr-v5c8-rw24",
"modified": "2024-04-04T01:57:59Z",
"published": "2022-05-24T16:56:21Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-16199"
},
{
"type": "WEB",
"url": "https://psytester.github.io/CVE-2019-16199"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-MJ33-2PQX-XFMM
Vulnerability from github – Published: 2026-09-16 18:32 – Updated: 2026-09-16 18:32Control 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 relaunches it by way of a generated batch script. An unauthenticated remote attacker can call this endpoint repeatedly to hold the service in a continuous restart cycle, rendering it unavailable.
{
"affected": [],
"aliases": [
"CVE-2026-92625"
],
"database_specific": {
"cwe_ids": [
"CWE-306"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-09-16T16:17:23Z",
"severity": "HIGH"
},
"details": "Control iD iDSecure versions prior to\u00a04.8.3.0 are affected by an unauthenticated\u00a0Denial of Service.\n\n\nThe /api/license/restartService endpoint is reachable without authentication and invokes an internal routine that terminates the iDSecure service process and relaunches it by way of a generated batch script. An unauthenticated remote attacker can call this endpoint repeatedly to hold the service in a continuous restart cycle, rendering it unavailable.",
"id": "GHSA-mj33-2pqx-xfmm",
"modified": "2026-09-16T18:32:03Z",
"published": "2026-09-16T18:32:03Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-92625"
},
{
"type": "WEB",
"url": "https://www.tenable.com/security/research/tra-2026-56"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-MJ5C-C9MM-83JF
Vulnerability from github – Published: 2025-11-10 21:30 – Updated: 2025-11-11 00:30Incorrect security UI in Fullscreen UI in Google Chrome prior to 142.0.7444.59 allowed a remote attacker who convinced a user to engage in specific UI gestures to perform UI spoofing via a crafted HTML page. (Chromium security severity: Low)
{
"affected": [],
"aliases": [
"CVE-2025-12444"
],
"database_specific": {
"cwe_ids": [
"CWE-306"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-11-10T20:15:39Z",
"severity": "MODERATE"
},
"details": "Incorrect security UI in Fullscreen UI in Google Chrome prior to 142.0.7444.59 allowed a remote attacker who convinced a user to engage in specific UI gestures to perform UI spoofing via a crafted HTML page. (Chromium security severity: Low)",
"id": "GHSA-mj5c-c9mm-83jf",
"modified": "2025-11-11T00:30:20Z",
"published": "2025-11-10T21:30:35Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-12444"
},
{
"type": "WEB",
"url": "https://chromereleases.googleblog.com/2025/10/stable-channel-update-for-desktop_28.html"
},
{
"type": "WEB",
"url": "https://issues.chromium.org/issues/390571618"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:L",
"type": "CVSS_V3"
}
]
}
GHSA-MJCH-V7J4-5XMP
Vulnerability from github – Published: 2023-09-27 15:30 – Updated: 2026-04-08 18:32The Staff / Employee Business Directory for Active Directory plugin for WordPress is vulnerable to LDAP Passback in versions up to, and including, 1.2.3. This is due to insufficient validation when changing the LDAP server. This makes it possible for authenticated attackers, with administrative access and above, to change the LDAP server and retrieve the credentials for the original LDAP server.
{
"affected": [],
"aliases": [
"CVE-2023-4505"
],
"database_specific": {
"cwe_ids": [
"CWE-306"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-09-27T15:19:40Z",
"severity": "MODERATE"
},
"details": "The Staff / Employee Business Directory for Active Directory plugin for WordPress is vulnerable to LDAP Passback in versions up to, and including, 1.2.3. This is due to insufficient validation when changing the LDAP server. This makes it possible for authenticated attackers, with administrative access and above, to change the LDAP server and retrieve the credentials for the original LDAP server.",
"id": "GHSA-mjch-v7j4-5xmp",
"modified": "2026-04-08T18:32:18Z",
"published": "2023-09-27T15:30:39Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-4505"
},
{
"type": "WEB",
"url": "https://medium.com/%40cybertrinchera/cve-2023-4506-cve-2023-4505-ldap-passback-on-miniorange-plugins-ca7328c84313"
},
{
"type": "WEB",
"url": "https://plugins.trac.wordpress.org/changeset/2973020"
},
{
"type": "WEB",
"url": "https://wordpress.org/plugins/ldap-ad-staff-employee-directory-search"
},
{
"type": "WEB",
"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/1ea40b96-4693-4f98-8e6e-2ed8186cedd8?source=cve"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:N/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-MJMV-2PJ5-X57J
Vulnerability from github – Published: 2025-08-26 00:31 – Updated: 2025-09-15 15:31The TP-Link KP303 Smartplug can be issued unauthenticated protocol commands that may cause unintended power-off condition and potential information leak.
This issue affects TP-Link KP303 (US) Smartplug: before 1.1.0.
{
"affected": [],
"aliases": [
"CVE-2025-8627"
],
"database_specific": {
"cwe_ids": [
"CWE-306"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-08-25T22:15:33Z",
"severity": "HIGH"
},
"details": "The TP-Link KP303 Smartplug\u00a0can be issued unauthenticated protocol commands that may cause unintended power-off condition and potential information leak.\n\nThis issue affects TP-Link KP303 (US) Smartplug: before 1.1.0.",
"id": "GHSA-mjmv-2pj5-x57j",
"modified": "2025-09-15T15:31:10Z",
"published": "2025-08-26T00:31:14Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-8627"
},
{
"type": "WEB",
"url": "https://www.tp-link.com/us/support/faq/4619"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
"type": "CVSS_V4"
}
]
}
GHSA-MM43-7G2P-X3M9
Vulnerability from github – Published: 2024-11-26 12:41 – Updated: 2024-11-26 12:41A CWE-306 "Missing Authentication for Critical Function" was discovered affecting the following devices manufactured by Advantech: EKI-6333AC-2G (<= 1.6.3), EKI-6333AC-2GD (<= v1.6.3) and EKI-6333AC-1GPO (<= v1.2.1). The vulnerability can be exploited by remote unauthenticated users capable of interacting with the default "edgserver" service enabled on the access point.
{
"affected": [],
"aliases": [
"CVE-2024-50375"
],
"database_specific": {
"cwe_ids": [
"CWE-306",
"CWE-78"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-11-26T11:22:07Z",
"severity": "CRITICAL"
},
"details": "A CWE-306 \"Missing Authentication for Critical Function\" was discovered affecting the following devices manufactured by Advantech: EKI-6333AC-2G (\u003c= 1.6.3), EKI-6333AC-2GD (\u003c= v1.6.3) and EKI-6333AC-1GPO (\u003c= v1.2.1). The vulnerability can be exploited by remote unauthenticated users capable of interacting with the default \"edgserver\" service enabled on the access point.",
"id": "GHSA-mm43-7g2p-x3m9",
"modified": "2024-11-26T12:41:37Z",
"published": "2024-11-26T12:41:37Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-50375"
},
{
"type": "WEB",
"url": "https://www.nozominetworks.com/labs/vulnerability-advisories-cve-2024-50375"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-MM8V-WMQX-8H2J
Vulnerability from github – Published: 2023-02-02 03:30 – Updated: 2023-02-08 00:23A missing access check in the InvitationController allows an unauthenticated user with a valid invitation link to set the password of all frontend users.
{
"affected": [
{
"package": {
"ecosystem": "Packagist",
"name": "in2code/femanager"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "5.5.3"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "Packagist",
"name": "in2code/femanager"
},
"ranges": [
{
"events": [
{
"introduced": "6.0.0"
},
{
"fixed": "6.3.4"
}
],
"type": "ECOSYSTEM"
}
]
},
{
"package": {
"ecosystem": "Packagist",
"name": "in2code/femanager"
},
"ranges": [
{
"events": [
{
"introduced": "7.0.0"
},
{
"fixed": "7.1.0"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2023-25013"
],
"database_specific": {
"cwe_ids": [
"CWE-306"
],
"github_reviewed": true,
"github_reviewed_at": "2023-02-08T00:23:23Z",
"nvd_published_at": "2023-02-02T01:15:00Z",
"severity": "HIGH"
},
"details": "A missing access check in the `InvitationController` allows an unauthenticated user with a valid invitation link to set the password of all frontend users.",
"id": "GHSA-mm8v-wmqx-8h2j",
"modified": "2023-02-08T00:23:23Z",
"published": "2023-02-02T03:30:23Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-25013"
},
{
"type": "WEB",
"url": "https://github.com/FriendsOfPHP/security-advisories/blob/master/in2code/femanager/CVE-2023-25013.yaml"
},
{
"type": "PACKAGE",
"url": "https://github.com/in2code-de/femanager"
},
{
"type": "WEB",
"url": "https://typo3.org/security/advisory/typo3-ext-sa-2023-001"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L",
"type": "CVSS_V3"
}
],
"summary": "Broken Access Control in 3rd party TYPO3 extension \"femanager\""
}
GHSA-MMG4-XM2J-P28W
Vulnerability from github – Published: 2026-08-18 21:32 – Updated: 2026-08-18 21:32Vulnerability in the Oracle Project Planning and Control product of Oracle E-Business Suite (component: Change Management). Supported versions that are affected are 12.2.3-12.2.15. Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to compromise Oracle Project Planning and Control. Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all Oracle Project Planning and Control accessible data as well as unauthorized access to critical data or complete access to all Oracle Project Planning and Control accessible data. CVSS 3.1 Base Score 8.1 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N).
{
"affected": [],
"aliases": [
"CVE-2026-70805"
],
"database_specific": {
"cwe_ids": [
"CWE-306"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-08-18T21:17:34Z",
"severity": "HIGH"
},
"details": "Vulnerability in the Oracle Project Planning and Control product of Oracle E-Business Suite (component: Change Management). Supported versions that are affected are 12.2.3-12.2.15. Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to compromise Oracle Project Planning and Control. Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all Oracle Project Planning and Control accessible data as well as unauthorized access to critical data or complete access to all Oracle Project Planning and Control accessible data. CVSS 3.1 Base Score 8.1 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N).",
"id": "GHSA-mmg4-xm2j-p28w",
"modified": "2026-08-18T21:32:57Z",
"published": "2026-08-18T21:32:57Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-70805"
},
{
"type": "WEB",
"url": "https://www.oracle.com/security-alerts/cspuaug2026.html"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N",
"type": "CVSS_V3"
}
]
}
Mitigation
- 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
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
- 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
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
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.