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.
3451 vulnerabilities reference this CWE, most recent first.
GHSA-RJ89-W4P6-78WV
Vulnerability from github – Published: 2026-04-03 21:31 – Updated: 2026-04-03 21:31A specific administrative endpoint is accessible without proper authentication, exposing device management functions.
{
"affected": [],
"aliases": [
"CVE-2026-32646"
],
"database_specific": {
"cwe_ids": [
"CWE-306"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-04-03T21:17:11Z",
"severity": "HIGH"
},
"details": "A specific administrative endpoint is accessible without proper authentication, exposing device management functions.",
"id": "GHSA-rj89-w4p6-78wv",
"modified": "2026-04-03T21:31:43Z",
"published": "2026-04-03T21:31:43Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-32646"
},
{
"type": "WEB",
"url": "https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-055-03.json"
},
{
"type": "WEB",
"url": "https://mygardyn.com/security"
},
{
"type": "WEB",
"url": "https://www.cisa.gov/news-events/ics-advisories/icsa-26-055-03"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/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-RJQM-M642-MM46
Vulnerability from github – Published: 2026-04-28 12:31 – Updated: 2026-04-28 12:31An unsecured configuration interface on affected devices allows unauthenticated remote attackers to access sensitive information, including hashed credentials and access codes.
{
"affected": [],
"aliases": [
"CVE-2026-3323"
],
"database_specific": {
"cwe_ids": [
"CWE-306"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-04-28T11:16:05Z",
"severity": "HIGH"
},
"details": "An unsecured configuration interface on affected devices allows unauthenticated remote attackers to access sensitive information, including hashed credentials and access codes.",
"id": "GHSA-rjqm-m642-mm46",
"modified": "2026-04-28T12:31:31Z",
"published": "2026-04-28T12:31:31Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-3323"
},
{
"type": "WEB",
"url": "https://certvde.com/en/advisories/VDE-2026-016"
},
{
"type": "WEB",
"url": "https://vega.csaf-tp.certvde.com/.well-known/csaf/white/2026/vde-2026-016.json"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-RJWJ-M7W5-FR82
Vulnerability from github – Published: 2025-12-24 21:30 – Updated: 2025-12-24 21:30FLIR Brickstream 3D+ 2.1.742.1842 contains an unauthenticated vulnerability that allows remote attackers to access live video streams without credentials. Attackers can retrieve video stream images by directly accessing multiple image endpoints like middleImage.jpg, rightimage.jpg, and leftimage.jpg.
{
"affected": [],
"aliases": [
"CVE-2018-25136"
],
"database_specific": {
"cwe_ids": [
"CWE-306"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-12-24T20:15:47Z",
"severity": "HIGH"
},
"details": "FLIR Brickstream 3D+ 2.1.742.1842 contains an unauthenticated vulnerability that allows remote attackers to access live video streams without credentials. Attackers can retrieve video stream images by directly accessing multiple image endpoints like middleImage.jpg, rightimage.jpg, and leftimage.jpg.",
"id": "GHSA-rjwj-m7w5-fr82",
"modified": "2025-12-24T21:30:31Z",
"published": "2025-12-24T21:30:31Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2018-25136"
},
{
"type": "WEB",
"url": "https://www.exploit-db.com/exploits/45607"
},
{
"type": "WEB",
"url": "https://www.zeroscience.mk/en/vulnerabilities/ZSL-2018-5496.php"
},
{
"type": "WEB",
"url": "http://www.brickstream.com"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/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-RJX7-V6G9-8G3M
Vulnerability from github – Published: 2024-03-12 09:30 – Updated: 2025-01-30 12:31An unauthenticated remote attacker can modify configurations to perform a remote code execution due to a missing authentication for a critical function.
{
"affected": [],
"aliases": [
"CVE-2024-25995"
],
"database_specific": {
"cwe_ids": [
"CWE-20",
"CWE-306"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-03-12T09:15:07Z",
"severity": "CRITICAL"
},
"details": "An unauthenticated remote attacker can modify configurations to perform a remote code execution due to a missing authentication for a critical function.",
"id": "GHSA-rjx7-v6g9-8g3m",
"modified": "2025-01-30T12:31:17Z",
"published": "2024-03-12T09:30:42Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-25995"
},
{
"type": "WEB",
"url": "https://cert.vde.com/en/advisories/VDE-2024-011"
},
{
"type": "WEB",
"url": "https://www.zerodayinitiative.com/advisories/ZDI-24-856"
}
],
"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-RMCG-RW28-JG8F
Vulnerability from github – Published: 2022-05-24 17:36 – Updated: 2022-05-24 17:36The official haproxy docker images before 1.8.18-alpine (Alpine specific) contain a blank password for a root user. System using the haproxy docker container deployed by affected versions of the docker image may allow a remote attacker to achieve root access with a blank password.
{
"affected": [],
"aliases": [
"CVE-2020-35195"
],
"database_specific": {
"cwe_ids": [
"CWE-306"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2020-12-17T02:15:00Z",
"severity": "CRITICAL"
},
"details": "The official haproxy docker images before 1.8.18-alpine (Alpine specific) contain a blank password for a root user. System using the haproxy docker container deployed by affected versions of the docker image may allow a remote attacker to achieve root access with a blank password.",
"id": "GHSA-rmcg-rw28-jg8f",
"modified": "2022-05-24T17:36:46Z",
"published": "2022-05-24T17:36:46Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-35195"
},
{
"type": "WEB",
"url": "https://github.com/koharin/koharin2/blob/main/CVE-2020-35195"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-RMGV-92VX-XFH9
Vulnerability from github – Published: 2024-02-18 09:30 – Updated: 2024-12-06 21:30Vulnerability of missing authentication for critical functions in the Wi-Fi module.Successful exploitation of this vulnerability may affect service confidentiality.
{
"affected": [],
"aliases": [
"CVE-2022-48621"
],
"database_specific": {
"cwe_ids": [
"CWE-306"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-02-18T07:15:07Z",
"severity": "HIGH"
},
"details": "Vulnerability of missing authentication for critical functions in the Wi-Fi module.Successful exploitation of this vulnerability may affect service confidentiality.",
"id": "GHSA-rmgv-92vx-xfh9",
"modified": "2024-12-06T21:30:34Z",
"published": "2024-02-18T09:30:47Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-48621"
},
{
"type": "WEB",
"url": "https://consumer.huawei.com/en/support/bulletin/2024/2"
},
{
"type": "WEB",
"url": "https://device.harmonyos.com/cn/docs/security/update/security-bulletins-202402-0000001834855405"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-RMQG-G429-35R5
Vulnerability from github – Published: 2023-02-19 15:30 – Updated: 2023-02-28 21:30Missing Authentication for Critical Function in GitHub repository kareadita/kavita prior to 0.7.0.
{
"affected": [],
"aliases": [
"CVE-2023-0919"
],
"database_specific": {
"cwe_ids": [
"CWE-306"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-02-19T15:15:00Z",
"severity": "LOW"
},
"details": "Missing Authentication for Critical Function in GitHub repository kareadita/kavita prior to 0.7.0.",
"id": "GHSA-rmqg-g429-35r5",
"modified": "2023-02-28T21:30:17Z",
"published": "2023-02-19T15:30:15Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-0919"
},
{
"type": "WEB",
"url": "https://github.com/Kareadita/Kavita/pull/1748/commits/6648b79e1b2f92449d5816d0722b7a3d72f259d5"
},
{
"type": "WEB",
"url": "https://github.com/kareadita/kavita/commit/6648b79e1b2f92449d5816d0722b7a3d72f259d5"
},
{
"type": "WEB",
"url": "https://huntr.dev/bounties/3c514923-473f-4c50-ae0d-d002a41fe70f"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-RMVQ-VF32-R4H4
Vulnerability from github – Published: 2022-05-24 17:29 – Updated: 2022-05-24 17:29Lack of access control in Nakivo Backup & Replication Transporter version 9.4.0.r43656 allows remote users to access unencrypted backup repositories and the Nakivo Controller configuration via a network accessible transporter service. It is also possible to create or delete backup repositories.
{
"affected": [],
"aliases": [
"CVE-2020-15851"
],
"database_specific": {
"cwe_ids": [
"CWE-306"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2020-09-24T21:15:00Z",
"severity": "CRITICAL"
},
"details": "Lack of access control in Nakivo Backup \u0026 Replication Transporter version 9.4.0.r43656 allows remote users to access unencrypted backup repositories and the Nakivo Controller configuration via a network accessible transporter service. It is also possible to create or delete backup repositories.",
"id": "GHSA-rmvq-vf32-r4h4",
"modified": "2022-05-24T17:29:22Z",
"published": "2022-05-24T17:29:22Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-15851"
},
{
"type": "WEB",
"url": "https://helpcenter.nakivo.com/display/RN/v10.3+Release+Notes"
},
{
"type": "WEB",
"url": "https://labs.f-secure.com/advisories/nakivo-backup-and-replication-multiple-vulnerabilities"
}
],
"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-RMWM-C9CM-59PW
Vulnerability from github – Published: 2022-04-13 00:00 – Updated: 2022-04-20 00:00The Visual Form Builder WordPress plugin before 3.0.6 does not perform access control on entry form export, allowing unauthenticated users to see the form entries or export it as a CSV File using the vfb-export endpoint.
{
"affected": [],
"aliases": [
"CVE-2022-0140"
],
"database_specific": {
"cwe_ids": [
"CWE-200",
"CWE-306"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-04-12T12:15:00Z",
"severity": "MODERATE"
},
"details": "The Visual Form Builder WordPress plugin before 3.0.6 does not perform access control on entry form export, allowing unauthenticated users to see the form entries or export it as a CSV File using the vfb-export endpoint.",
"id": "GHSA-rmwm-c9cm-59pw",
"modified": "2022-04-20T00:00:50Z",
"published": "2022-04-13T00:00:31Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-0140"
},
{
"type": "WEB",
"url": "https://wpscan.com/vulnerability/9fa2b3b6-2fe3-40f0-8f71-371dd58fe336"
},
{
"type": "WEB",
"url": "https://www.fortiguard.com/zeroday/FG-VD-21-082"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-RP3F-WHM7-36HQ
Vulnerability from github – Published: 2025-02-11 18:31 – Updated: 2025-10-22 00:33An Authentication Bypass Using an Alternate Path or Channel vulnerability [CWE-288] affecting FortiOS 7.0.0 through 7.0.16 and FortiProxy 7.2.0 through 7.2.12, 7.0.0 through 7.0.19 may allow a remote attacker to gain super-admin privileges via crafted CSF proxy requests.
{
"affected": [],
"aliases": [
"CVE-2025-24472"
],
"database_specific": {
"cwe_ids": [
"CWE-288",
"CWE-306"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-02-11T17:15:34Z",
"severity": "HIGH"
},
"details": "An\u00a0Authentication Bypass Using an Alternate Path or Channel vulnerability [CWE-288] affecting FortiOS 7.0.0 through 7.0.16 and FortiProxy 7.2.0 through 7.2.12, 7.0.0 through 7.0.19 may allow a remote attacker to gain super-admin privileges via crafted CSF proxy requests.",
"id": "GHSA-rp3f-whm7-36hq",
"modified": "2025-10-22T00:33:12Z",
"published": "2025-02-11T18:31:36Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-24472"
},
{
"type": "WEB",
"url": "https://fortiguard.fortinet.com/psirt/FG-IR-24-535"
},
{
"type": "WEB",
"url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2025-24472"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
"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.