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.
3483 vulnerabilities reference this CWE, most recent first.
GHSA-HFM8-CW5V-6CRF
Vulnerability from github – Published: 2022-05-13 01:22 – Updated: 2022-05-13 01:22Advantech WebAccess 8.3.4 allows unauthenticated, remote attackers to delete arbitrary files via IOCTL 10005 RPC.
{
"affected": [],
"aliases": [
"CVE-2019-3941"
],
"database_specific": {
"cwe_ids": [
"CWE-306"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2019-04-09T16:29:00Z",
"severity": "HIGH"
},
"details": "Advantech WebAccess 8.3.4 allows unauthenticated, remote attackers to delete arbitrary files via IOCTL 10005 RPC.",
"id": "GHSA-hfm8-cw5v-6crf",
"modified": "2022-05-13T01:22:29Z",
"published": "2022-05-13T01:22:29Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-3941"
},
{
"type": "WEB",
"url": "https://www.tenable.com/security/research/tra-2019-15"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/107847"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-HFWH-H29M-GPWH
Vulnerability from github – Published: 2026-02-04 00:30 – Updated: 2026-06-04 21:31Avation Light Engine Pro exposes its configuration and control interface without any authentication or access control.
{
"affected": [],
"aliases": [
"CVE-2026-1341"
],
"database_specific": {
"cwe_ids": [
"CWE-306"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-02-03T22:16:29Z",
"severity": "CRITICAL"
},
"details": "Avation Light Engine Pro exposes its configuration and control interface without any authentication or access control.",
"id": "GHSA-hfwh-h29m-gpwh",
"modified": "2026-06-04T21:31:18Z",
"published": "2026-02-04T00:30:29Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-1341"
},
{
"type": "WEB",
"url": "https://avation.co.nz/contact-us"
},
{
"type": "WEB",
"url": "https://github.com/cisagov/CSAF/blob/develop/csaf_files/OT/white/2026/icsa-26-034-02.json"
},
{
"type": "WEB",
"url": "https://www.cisa.gov/news-events/ics-advisories/icsa-26-034-02"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:4.0/AV:N/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-HG4M-M77P-QP8J
Vulnerability from github – Published: 2026-03-20 03:31 – Updated: 2026-03-20 03:31Vulnerability in the Oracle Identity Manager product of Oracle Fusion Middleware (component: REST WebServices) and Oracle Web Services Manager product of Oracle Fusion Middleware (component: Web Services Security). Supported versions that are affected are 12.2.1.4.0 and 14.1.2.1.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle Identity Manager and Oracle Web Services Manager. Successful attacks of this vulnerability can result in takeover of Oracle Identity Manager and Oracle Web Services Manager. CVSS 3.1 Base Score 9.8 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).
{
"affected": [],
"aliases": [
"CVE-2026-21992"
],
"database_specific": {
"cwe_ids": [
"CWE-306"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-03-20T03:15:58Z",
"severity": "CRITICAL"
},
"details": "Vulnerability in the Oracle Identity Manager product of Oracle Fusion Middleware (component: REST WebServices) and Oracle Web Services Manager product of Oracle Fusion Middleware (component: Web Services Security). Supported versions that are affected are 12.2.1.4.0 and 14.1.2.1.0. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle Identity Manager and Oracle Web Services Manager. Successful attacks of this vulnerability can result in takeover of Oracle Identity Manager and Oracle Web Services Manager. CVSS 3.1 Base Score 9.8 (Confidentiality, Integrity and Availability impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H).",
"id": "GHSA-hg4m-m77p-qp8j",
"modified": "2026-03-20T03:31:06Z",
"published": "2026-03-20T03:31:06Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-21992"
},
{
"type": "WEB",
"url": "https://www.oracle.com/security-alerts/alert-cve-2026-21992.html"
}
],
"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-HGGV-MCP4-VXC5
Vulnerability from github – Published: 2022-03-12 00:00 – Updated: 2026-06-10 18:46FreeTAKServer is an open source, lightweight Server for connect TAK clients. An access control issue in the component /ManageRoute/postRoute of FreeTAKServer version 1.9.8 allows unauthenticated attackers to cause a Denial of Service (DoS) via an unusually large amount of created routes, or create unsafe or false routes for legitimate users. There is currently no known workaround. This issue was fixed in version 1.9.8.5.
{
"affected": [
{
"database_specific": {
"last_known_affected_version_range": "\u003c= 1.9.8"
},
"package": {
"ecosystem": "PyPI",
"name": "FreeTAKServer"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "1.9.8.5"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2022-25508"
],
"database_specific": {
"cwe_ids": [
"CWE-287",
"CWE-306"
],
"github_reviewed": true,
"github_reviewed_at": "2022-03-14T23:17:58Z",
"nvd_published_at": "2022-03-11T00:15:00Z",
"severity": "HIGH"
},
"details": "FreeTAKServer is an open source, lightweight Server for connect TAK clients. An access control issue in the component /ManageRoute/postRoute of FreeTAKServer version 1.9.8 allows unauthenticated attackers to cause a Denial of Service (DoS) via an unusually large amount of created routes, or create unsafe or false routes for legitimate users. There is currently no known workaround. This issue was fixed in version 1.9.8.5.",
"id": "GHSA-hggv-mcp4-vxc5",
"modified": "2026-06-10T18:46:33Z",
"published": "2022-03-12T00:00:37Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-25508"
},
{
"type": "WEB",
"url": "https://github.com/FreeTAKTeam/FreeTakServer/issues/291"
},
{
"type": "PACKAGE",
"url": "https://github.com/FreeTAKTeam/FreeTakServer"
},
{
"type": "WEB",
"url": "https://github.com/pypa/advisory-database/tree/main/vulns/freetakserver/PYSEC-2022-43054.yaml"
}
],
"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"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N",
"type": "CVSS_V4"
}
],
"summary": "Improper Authentication in FreeTAKServer"
}
GHSA-HGHQ-X3WH-37G2
Vulnerability from github – Published: 2022-05-24 19:09 – Updated: 2022-05-24 19:09The resolution SAML SSO apps for Atlassian products allow a remote attacker to login to a user account when only the username is known (i.e., no other authentication is provided). The fixed versions are for Jira: 3.6.6.1, 4.0.12, 5.0.5; for Confluence 3.6.6, 4.0.12, 5.0.5; for Bitbucket 2.5.9, 3.6.6, 4.0.12, 5.0.5; for Bamboo 2.5.9, 3.6.6, 4.0.12, 5.0.5; and for Fisheye 2.5.9.
{
"affected": [],
"aliases": [
"CVE-2021-37843"
],
"database_specific": {
"cwe_ids": [
"CWE-306"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2021-08-02T19:15:00Z",
"severity": "CRITICAL"
},
"details": "The resolution SAML SSO apps for Atlassian products allow a remote attacker to login to a user account when only the username is known (i.e., no other authentication is provided). The fixed versions are for Jira: 3.6.6.1, 4.0.12, 5.0.5; for Confluence 3.6.6, 4.0.12, 5.0.5; for Bitbucket 2.5.9, 3.6.6, 4.0.12, 5.0.5; for Bamboo 2.5.9, 3.6.6, 4.0.12, 5.0.5; and for Fisheye 2.5.9.",
"id": "GHSA-hghq-x3wh-37g2",
"modified": "2022-05-24T19:09:30Z",
"published": "2022-05-24T19:09:30Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-37843"
},
{
"type": "WEB",
"url": "https://wiki.resolution.de/doc/saml-sso/5.0.x/all/security-advisories/2021-07-29-authentication-bypass-network-attacker-can-login-to-users-accounts-when-usernames-are-known"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-HGJ8-W26Q-693M
Vulnerability from github – Published: 2022-05-24 17:13 – Updated: 2022-05-24 17:13CB3 SW Version 3.3 and upwards, e-series SW Version 5.0 and upwards allow authenticated access to the RTDE (Real-Time Data Exchange) interface on port 30004 which allows setting registers, the speed slider fraction as well as digital and analog Outputs. Additionally unautheticated reading of robot data is also possible
{
"affected": [],
"aliases": [
"CVE-2020-10264"
],
"database_specific": {
"cwe_ids": [
"CWE-306"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2020-04-06T12:15:00Z",
"severity": "MODERATE"
},
"details": "CB3 SW Version 3.3 and upwards, e-series SW Version 5.0 and upwards allow authenticated access to the RTDE (Real-Time Data Exchange) interface on port 30004 which allows setting registers, the speed slider fraction as well as digital and analog Outputs. Additionally unautheticated reading of robot data is also possible",
"id": "GHSA-hgj8-w26q-693m",
"modified": "2022-05-24T17:13:24Z",
"published": "2022-05-24T17:13:24Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-10264"
},
{
"type": "WEB",
"url": "https://www.universal-robots.com/how-tos-and-faqs/how-to/ur-how-tos/real-time-data-exchange-rtde-guide"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-HH3C-XPMG-W5FR
Vulnerability from github – Published: 2023-03-11 00:30 – Updated: 2025-10-22 00:32Vulnerability in Veeam Backup & Replication component allows encrypted credentials stored in the configuration database to be obtained. This may lead to gaining access to the backup infrastructure hosts.
{
"affected": [],
"aliases": [
"CVE-2023-27532"
],
"database_specific": {
"cwe_ids": [
"CWE-306"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-03-10T22:15:00Z",
"severity": "HIGH"
},
"details": "Vulnerability in Veeam Backup \u0026 Replication component allows encrypted credentials stored in the configuration database to be obtained. This may lead to gaining access to the backup infrastructure hosts.",
"id": "GHSA-hh3c-xpmg-w5fr",
"modified": "2025-10-22T00:32:43Z",
"published": "2023-03-11T00:30:16Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-27532"
},
{
"type": "WEB",
"url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-27532"
},
{
"type": "WEB",
"url": "https://www.veeam.com/kb4424"
}
],
"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-HH75-7PHJ-957R
Vulnerability from github – Published: 2022-05-13 01:16 – Updated: 2022-05-13 01:16Philips iSite and IntelliSpace PACS, iSite PACS, all versions, and IntelliSpace PACS, all versions. Default credentials and no authentication within third party software may allow an attacker to compromise a component of the system.
{
"affected": [],
"aliases": [
"CVE-2018-17906"
],
"database_specific": {
"cwe_ids": [
"CWE-306"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2018-11-19T20:29:00Z",
"severity": "HIGH"
},
"details": "Philips iSite and IntelliSpace PACS, iSite PACS, all versions, and IntelliSpace PACS, all versions. Default credentials and no authentication within third party software may allow an attacker to compromise a component of the system.",
"id": "GHSA-hh75-7phj-957r",
"modified": "2022-05-13T01:16:09Z",
"published": "2022-05-13T01:16:09Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2018-17906"
},
{
"type": "WEB",
"url": "https://ics-cert.us-cert.gov/advisories/ICSMA-18-312-01"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/105875"
}
],
"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"
}
]
}
GHSA-HH8M-VHQQ-Q93C
Vulnerability from github – Published: 2025-10-04 03:32 – Updated: 2025-10-04 03:32The Integrate Dynamics 365 CRM plugin for WordPress is vulnerable to unauthorized access in all versions up to, and including, 1.0.9. This is due to missing capability checks and nonce verification on functions hooked to 'init'. This makes it possible for unauthenticated attackers to deactivate the plugin, tamper with OAuth configuration, and trigger test connections that expose sensitive data via direct request to vulnerable endpoints granted they can craft malicious requests with specific parameters.
{
"affected": [],
"aliases": [
"CVE-2025-10746"
],
"database_specific": {
"cwe_ids": [
"CWE-306"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-10-04T03:15:35Z",
"severity": "MODERATE"
},
"details": "The Integrate Dynamics 365 CRM plugin for WordPress is vulnerable to unauthorized access in all versions up to, and including, 1.0.9. This is due to missing capability checks and nonce verification on functions hooked to \u0027init\u0027. This makes it possible for unauthenticated attackers to deactivate the plugin, tamper with OAuth configuration, and trigger test connections that expose sensitive data via direct request to vulnerable endpoints granted they can craft malicious requests with specific parameters.",
"id": "GHSA-hh8m-vhqq-q93c",
"modified": "2025-10-04T03:32:58Z",
"published": "2025-10-04T03:32:58Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-10746"
},
{
"type": "WEB",
"url": "https://plugins.trac.wordpress.org/browser/integrate-dynamics-365-crm/tags/1.0.9/Observer/adminObserver.php#L26"
},
{
"type": "WEB",
"url": "https://plugins.trac.wordpress.org/browser/integrate-dynamics-365-crm/tags/1.0.9/integrate-dynamics-365-crm.php#L48"
},
{
"type": "WEB",
"url": "https://plugins.trac.wordpress.org/browser/integrate-dynamics-365-crm/trunk/Observer/class-adminobserver.php?rev=3370266#L71"
},
{
"type": "WEB",
"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/b7fb23e8-dabb-4d6e-a2b2-2b27d6a38b3c?source=cve"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-HH9F-V2G6-C33C
Vulnerability from github – Published: 2026-06-26 00:32 – Updated: 2026-06-26 00:32Flowise contains an authentication bypass vulnerability in the unprotected /api/v1/account/register endpoint that allows unauthenticated attackers to create user accounts. Remote attackers can exploit this endpoint to register arbitrary accounts and authenticate to the system, gaining full API access without credentials.
{
"affected": [],
"aliases": [
"CVE-2025-71327"
],
"database_specific": {
"cwe_ids": [
"CWE-306"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-06-25T22:16:58Z",
"severity": "CRITICAL"
},
"details": "Flowise contains an authentication bypass vulnerability in the unprotected /api/v1/account/register endpoint that allows unauthenticated attackers to create user accounts. Remote attackers can exploit this endpoint to register arbitrary accounts and authenticate to the system, gaining full API access without credentials.",
"id": "GHSA-hh9f-v2g6-c33c",
"modified": "2026-06-26T00:32:04Z",
"published": "2026-06-26T00:32:04Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-v5w9-prxf-w882"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-71327"
},
{
"type": "WEB",
"url": "https://www.vulncheck.com/advisories/flowise-authentication-bypass-via-unprotected-registration-endpoint"
}
],
"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:N",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/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"
}
]
}
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.