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.
3482 vulnerabilities reference this CWE, most recent first.
GHSA-H9RW-4PM8-962H
Vulnerability from github – Published: 2026-02-14 09:31 – Updated: 2026-02-14 09:31The One to one user Chat by WPGuppy plugin for WordPress is vulnerable to unauthorized access of data due to a missing capability check on the /wp-json/guppylite/v2/channel-authorize rest endpoint in all versions up to, and including, 1.1.4. This makes it possible for unauthenticated attackers to intercept and view private chat messages between users.
{
"affected": [],
"aliases": [
"CVE-2025-6792"
],
"database_specific": {
"cwe_ids": [
"CWE-306"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-02-14T07:16:07Z",
"severity": "MODERATE"
},
"details": "The One to one user Chat by WPGuppy plugin for WordPress is vulnerable to unauthorized access of data due to a missing capability check on the /wp-json/guppylite/v2/channel-authorize rest endpoint in all versions up to, and including, 1.1.4. This makes it possible for unauthenticated attackers to intercept and view private chat messages between users.",
"id": "GHSA-h9rw-4pm8-962h",
"modified": "2026-02-14T09:31:32Z",
"published": "2026-02-14T09:31:32Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-6792"
},
{
"type": "WEB",
"url": "https://wordpress.org/plugins/wpguppy-lite"
},
{
"type": "WEB",
"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/03774303-c9f4-4666-ac88-78f92aaf81dc?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:N/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-HC2F-R46J-4W6X
Vulnerability from github – Published: 2026-07-14 18:32 – Updated: 2026-07-14 21:31Missing authentication for critical function in Microsoft Office SharePoint allows an unauthorized attacker to elevate privileges over a network.
{
"affected": [],
"aliases": [
"CVE-2026-56164"
],
"database_specific": {
"cwe_ids": [
"CWE-306"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-07-14T17:17:09Z",
"severity": "MODERATE"
},
"details": "Missing authentication for critical function in Microsoft Office SharePoint allows an unauthorized attacker to elevate privileges over a network.",
"id": "GHSA-hc2f-r46j-4w6x",
"modified": "2026-07-14T21:31:50Z",
"published": "2026-07-14T18:32:10Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-56164"
},
{
"type": "WEB",
"url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-56164"
},
{
"type": "WEB",
"url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-56164"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-HC36-4GF4-49QX
Vulnerability from github – Published: 2025-05-15 09:31 – Updated: 2025-05-15 09:31Missing authentication for critical function issue exists in I-O DATA network attached hard disk 'HDL-T Series' firmware Ver.1.21 and earlier. If exploited, a remote unauthenticated attacker may change the product settings.
{
"affected": [],
"aliases": [
"CVE-2025-32738"
],
"database_specific": {
"cwe_ids": [
"CWE-306"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-05-15T09:15:19Z",
"severity": "MODERATE"
},
"details": "Missing authentication for critical function issue exists in I-O DATA network attached hard disk \u0027HDL-T Series\u0027 firmware Ver.1.21 and earlier. If exploited, a remote unauthenticated attacker may change the product settings.",
"id": "GHSA-hc36-4gf4-49qx",
"modified": "2025-05-15T09:31:21Z",
"published": "2025-05-15T09:31:21Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-32738"
},
{
"type": "WEB",
"url": "https://jvn.jp/en/vu/JVNVU91726405"
},
{
"type": "WEB",
"url": "https://www.iodata.jp/support/information/2025/05_hdl-t"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/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-HCR4-42V2-C272
Vulnerability from github – Published: 2026-01-23 21:30 – Updated: 2026-01-26 18:31A vulnerability exists in the Aptsys POS Platform Web Services module thru 2025-05-28, which exposes internal API testing tools to unauthenticated users. By accessing specific URLs, an attacker is presented with a directory-style index listing all available backend services and POS web services, each with an HTML form for submitting test input. These panels are intended for developer use, but are accessible in production environments with no authentication or session validation. This grants any external actor the ability to discover, test, and execute API endpoints that perform critical functions including but not limited to user transaction retrieval, credit adjustments, POS actions, and internal data queries.
{
"affected": [],
"aliases": [
"CVE-2025-52024"
],
"database_specific": {
"cwe_ids": [
"CWE-306"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-01-23T21:15:50Z",
"severity": "CRITICAL"
},
"details": "A vulnerability exists in the Aptsys POS Platform Web Services module thru 2025-05-28, which exposes internal API testing tools to unauthenticated users. By accessing specific URLs, an attacker is presented with a directory-style index listing all available backend services and POS web services, each with an HTML form for submitting test input. These panels are intended for developer use, but are accessible in production environments with no authentication or session validation. This grants any external actor the ability to discover, test, and execute API endpoints that perform critical functions including but not limited to user transaction retrieval, credit adjustments, POS actions, and internal data queries.",
"id": "GHSA-hcr4-42v2-c272",
"modified": "2026-01-26T18:31:29Z",
"published": "2026-01-23T21:30:43Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-52024"
},
{
"type": "WEB",
"url": "https://gist.github.com/ReverseThatApp/4a6be2b9b2ba39d38c35c8753e0afd39"
},
{
"type": "WEB",
"url": "http://aptsys.com"
}
],
"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:L",
"type": "CVSS_V3"
}
]
}
GHSA-HCV4-2WJ7-9P5G
Vulnerability from github – Published: 2026-02-26 21:31 – Updated: 2026-02-27 21:31Unitree 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.
{
"affected": [],
"aliases": [
"CVE-2026-27509"
],
"database_specific": {
"cwe_ids": [
"CWE-306"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-02-26T20:31:38Z",
"severity": "HIGH"
},
"details": "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.",
"id": "GHSA-hcv4-2wj7-9p5g",
"modified": "2026-02-27T21:31:20Z",
"published": "2026-02-26T21:31:31Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-27509"
},
{
"type": "WEB",
"url": "https://boschko.ca/unitree-go2-rce"
},
{
"type": "WEB",
"url": "https://shop.unitree.com/products/unitree-go2"
},
{
"type": "WEB",
"url": "https://www.vulncheck.com/advisories/unitree-go2-missing-dds-authentication-enables-adjacent-rce"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:A/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-HF2H-MJWG-V9R7
Vulnerability from github – Published: 2024-12-04 03:31 – Updated: 2024-12-04 03:31A vulnerability in Veeam Backup & Replication platform allows a low-privileged user with a specific role to exploit a method that updates critical configuration settings, such as modifying the trusted client certificate used for authentication on a specific port. This can result in unauthorized access, enabling the user to call privileged methods and initiate critical services. The issue arises due to insufficient permission requirements on the method, allowing users with low privileges to perform actions that should require higher-level permissions.
{
"affected": [],
"aliases": [
"CVE-2024-42456"
],
"database_specific": {
"cwe_ids": [
"CWE-306"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-12-04T02:15:05Z",
"severity": "HIGH"
},
"details": "A vulnerability in Veeam Backup \u0026 Replication platform allows a low-privileged user with a specific role to exploit a method that updates critical configuration settings, such as modifying the trusted client certificate used for authentication on a specific port. This can result in unauthorized access, enabling the user to call privileged methods and initiate critical services. The issue arises due to insufficient permission requirements on the method, allowing users with low privileges to perform actions that should require higher-level permissions.",
"id": "GHSA-hf2h-mjwg-v9r7",
"modified": "2024-12-04T03:31:16Z",
"published": "2024-12-04T03:31:16Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-42456"
},
{
"type": "WEB",
"url": "https://www.veeam.com/kb4693"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-HF72-FXXW-C3JQ
Vulnerability from github – Published: 2025-08-21 03:30 – Updated: 2025-08-21 15:30A Missing Authentication for Critical Function vulnerability in the UniFi Connect EV Station Pro may allow a malicious actor with physical or adjacent access to perform an unauthorized factory reset.
Affected Products:
UniFi Connect EV Station Pro (Version 1.5.18 and earlier)
Mitigation:
Update UniFi Connect EV Station Pro to Version 1.5.27 or later
{
"affected": [],
"aliases": [
"CVE-2025-27214"
],
"database_specific": {
"cwe_ids": [
"CWE-306"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-08-21T01:15:35Z",
"severity": "CRITICAL"
},
"details": "A Missing Authentication for Critical Function vulnerability in the UniFi Connect EV Station Pro may allow a malicious actor with physical or adjacent access to perform an unauthorized factory reset.\n\n \n\nAffected Products:\n\nUniFi Connect EV Station Pro (Version 1.5.18 and earlier)\n\n \n\nMitigation:\n\nUpdate UniFi Connect EV Station Pro to Version 1.5.27 or later",
"id": "GHSA-hf72-fxxw-c3jq",
"modified": "2025-08-21T15:30:34Z",
"published": "2025-08-21T03:30:25Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-27214"
},
{
"type": "WEB",
"url": "https://community.ui.com/releases/Security-Advisory-Bulletin-052-052/ac1251ee-5bb5-4cdf-8a71-68acd1775bb6"
}
],
"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-HFC3-FPP4-RQVM
Vulnerability from github – Published: 2026-02-02 15:30 – Updated: 2026-02-02 15:30An unauthenticated adjacent attacker could potentially disrupt operations by switching between multiple configuration presets via Modbus (RS485).
{
"affected": [],
"aliases": [
"CVE-2022-50979"
],
"database_specific": {
"cwe_ids": [
"CWE-306"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-02-02T15:16:28Z",
"severity": "MODERATE"
},
"details": "An unauthenticated adjacent attacker could potentially disrupt operations by switching between multiple configuration presets via Modbus (RS485).",
"id": "GHSA-hfc3-fpp4-rqvm",
"modified": "2026-02-02T15:30:34Z",
"published": "2026-02-02T15:30:34Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-50979"
},
{
"type": "WEB",
"url": "https://www.innomic.com/.well-known/csaf/white/2026/ids-2026-0001.html"
},
{
"type": "WEB",
"url": "https://www.innomic.com/.well-known/csaf/white/2026/ids-2026-0001.json"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-HFHG-W67X-4FPQ
Vulnerability from github – Published: 2026-05-12 18:30 – Updated: 2026-05-13 18:30The mem0 v1.0.0 server lacks authentication and authorization controls for its memory reset functionality accessible via the DELETE /memories endpoint. An unauthenticated attacker can send a DELETE request that triggers a reset operation, leading to the execution of a DROP TABLE SQL statement. This results in the deletion of the entire memory database table, causing catastrophic data loss and a complete denial of service for all users of the service.
{
"affected": [],
"aliases": [
"CVE-2026-31242"
],
"database_specific": {
"cwe_ids": [
"CWE-306"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-05-12T18:16:52Z",
"severity": "CRITICAL"
},
"details": "The mem0 v1.0.0 server lacks authentication and authorization controls for its memory reset functionality accessible via the DELETE /memories endpoint. An unauthenticated attacker can send a DELETE request that triggers a reset operation, leading to the execution of a DROP TABLE SQL statement. This results in the deletion of the entire memory database table, causing catastrophic data loss and a complete denial of service for all users of the service.",
"id": "GHSA-hfhg-w67x-4fpq",
"modified": "2026-05-13T18:30:46Z",
"published": "2026-05-12T18:30:41Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-31242"
},
{
"type": "WEB",
"url": "https://github.com/mem0ai/mem0"
},
{
"type": "WEB",
"url": "https://www.notion.so/CVE-2026-31242-35d1e1393188819c9ebec0e684b4e656"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H",
"type": "CVSS_V3"
}
]
}
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"
}
]
}
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.