CWE-287
DiscouragedImproper Authentication
Abstraction: Class · Status: Draft
When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.
5964 vulnerabilities reference this CWE, most recent first.
GHSA-JQ5G-XXG4-VW6H
Vulnerability from github – Published: 2022-05-24 19:12 – Updated: 2022-07-03 00:00Delta Electronics DIAEnergie Version 1.7.5 and prior may allow an attacker to add a new administrative user without being authenticated or authorized, which may allow the attacker to log in and use the device with administrative privileges.
{
"affected": [],
"aliases": [
"CVE-2021-32967"
],
"database_specific": {
"cwe_ids": [
"CWE-287",
"CWE-288"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2021-08-30T18:15:00Z",
"severity": "CRITICAL"
},
"details": "Delta Electronics DIAEnergie Version 1.7.5 and prior may allow an attacker to add a new administrative user without being authenticated or authorized, which may allow the attacker to log in and use the device with administrative privileges.",
"id": "GHSA-jq5g-xxg4-vw6h",
"modified": "2022-07-03T00:00:24Z",
"published": "2022-05-24T19:12:28Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-32967"
},
{
"type": "WEB",
"url": "https://us-cert.cisa.gov/ics/advisories/icsa-21-238-03"
}
],
"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-JQCF-GRP7-VR4J
Vulnerability from github – Published: 2022-05-02 03:31 – Updated: 2022-05-02 03:31admin/options.php in Grestul 1.2 does not properly restrict access, which allows remote attackers to bypass authentication and create administrative accounts via a manage_admin action in a direct request.
{
"affected": [],
"aliases": [
"CVE-2009-2040"
],
"database_specific": {
"cwe_ids": [
"CWE-287"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2009-06-12T18:00:00Z",
"severity": "HIGH"
},
"details": "admin/options.php in Grestul 1.2 does not properly restrict access, which allows remote attackers to bypass authentication and create administrative accounts via a manage_admin action in a direct request.",
"id": "GHSA-jqcf-grp7-vr4j",
"modified": "2022-05-02T03:31:11Z",
"published": "2022-05-02T03:31:11Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2009-2040"
},
{
"type": "WEB",
"url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/50999"
},
{
"type": "WEB",
"url": "https://www.exploit-db.com/exploits/8902"
},
{
"type": "WEB",
"url": "http://secunia.com/advisories/35367"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-JQQR-RW2R-W5CX
Vulnerability from github – Published: 2026-03-23 00:31 – Updated: 2026-03-23 00:31A security flaw has been discovered in MacCMS 2025.1000.4052. This affects an unknown part of the file application/api/controller/Timming.php of the component Timming API Endpoint. The manipulation results in missing authentication. The attack may be performed from remote. The exploit has been released to the public and may be used for attacks.
{
"affected": [],
"aliases": [
"CVE-2026-4562"
],
"database_specific": {
"cwe_ids": [
"CWE-287"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-03-23T00:16:51Z",
"severity": "MODERATE"
},
"details": "A security flaw has been discovered in MacCMS 2025.1000.4052. This affects an unknown part of the file application/api/controller/Timming.php of the component Timming API Endpoint. The manipulation results in missing authentication. The attack may be performed from remote. The exploit has been released to the public and may be used for attacks.",
"id": "GHSA-jqqr-rw2r-w5cx",
"modified": "2026-03-23T00:31:07Z",
"published": "2026-03-23T00:31:07Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-4562"
},
{
"type": "WEB",
"url": "https://github.com/HuajiHD/CVE/issues/9"
},
{
"type": "WEB",
"url": "https://vuldb.com/?ctiid.352399"
},
{
"type": "WEB",
"url": "https://vuldb.com/?id.352399"
},
{
"type": "WEB",
"url": "https://vuldb.com/?submit.775039"
}
],
"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:L",
"type": "CVSS_V3"
},
{
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/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-JQXH-X9F5-WCGW
Vulnerability from github – Published: 2026-06-08 12:30 – Updated: 2026-06-08 21:31A logic flow weakness in Remote Access and Mobile Access certificate validation in deprecated IKEv1 key exchange allows an unauthenticated remote attacker to bypass user authentication and establish a remote access VPN connection without a valid user password.
{
"affected": [],
"aliases": [
"CVE-2026-50751"
],
"database_specific": {
"cwe_ids": [
"CWE-287"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-06-08T12:16:32Z",
"severity": "CRITICAL"
},
"details": "A logic flow weakness in Remote Access and Mobile Access certificate validation in deprecated IKEv1 key exchange allows an unauthenticated remote attacker to bypass user authentication and establish a remote access VPN connection without a valid user password.",
"id": "GHSA-jqxh-x9f5-wcgw",
"modified": "2026-06-08T21:31:49Z",
"published": "2026-06-08T12:30:29Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-50751"
},
{
"type": "WEB",
"url": "https://blog.checkpoint.com/security/check-point-releases-important-hotfix-for-vulnerabilities-in-deprecated-ikev1-vpn-protocol"
},
{
"type": "WEB",
"url": "https://support.checkpoint.com/results/sk/sk185033"
},
{
"type": "WEB",
"url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-50751"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:L/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-JQXV-HGP2-XF9P
Vulnerability from github – Published: 2022-05-13 01:33 – Updated: 2022-05-13 01:33SAGA1-L8B with any firmware versions prior to A0.10 are vulnerable to an attack that an attacker with physical access to the product may able to reprogram it.
{
"affected": [],
"aliases": [
"CVE-2018-17923"
],
"database_specific": {
"cwe_ids": [
"CWE-287"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2018-10-24T22:29:00Z",
"severity": "MODERATE"
},
"details": "SAGA1-L8B with any firmware versions prior to A0.10 are vulnerable to an attack that an attacker with physical access to the product may able to reprogram it.",
"id": "GHSA-jqxv-hgp2-xf9p",
"modified": "2022-05-13T01:33:46Z",
"published": "2022-05-13T01:33:46Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2018-17923"
},
{
"type": "WEB",
"url": "https://ics-cert.us-cert.gov/advisories/ICSA-18-296-02"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/105729"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:P/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-JR46-4Q88-9HJX
Vulnerability from github – Published: 2022-05-24 17:13 – Updated: 2022-05-24 17:13An issue was discovered in iXsystems FreeNAS 11.2 and 11.3 before 11.3-U1. It allows a denial of service.
{
"affected": [],
"aliases": [
"CVE-2020-11650"
],
"database_specific": {
"cwe_ids": [
"CWE-287"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2020-04-08T23:15:00Z",
"severity": "MODERATE"
},
"details": "An issue was discovered in iXsystems FreeNAS 11.2 and 11.3 before 11.3-U1. It allows a denial of service.",
"id": "GHSA-jr46-4q88-9hjx",
"modified": "2022-05-24T17:13:57Z",
"published": "2022-05-24T17:13:57Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-11650"
},
{
"type": "WEB",
"url": "https://jira.ixsystems.com/browse/NAS-104748"
},
{
"type": "WEB",
"url": "https://security.ixsystems.com/cves/2020-04-08-cve-2020-11650"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-JR4V-GCQW-X774
Vulnerability from github – Published: 2025-10-15 09:30 – Updated: 2025-10-15 09:30The Keyy Two Factor Authentication (like Clef) plugin for WordPress is vulnerable to privilege escalation via account takeover in all versions up to, and including, 1.2.3. This is due to the plugin not properly validating a user's identity associated with a token generated. This makes it possible for authenticated attackers, with subscriber-level access and above, to generate valid auth tokens and leverage that to auto-login as other accounts, including administrators, as long as the administrator has the 2FA set up.
{
"affected": [],
"aliases": [
"CVE-2025-10293"
],
"database_specific": {
"cwe_ids": [
"CWE-287"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-10-15T09:15:38Z",
"severity": "HIGH"
},
"details": "The Keyy Two Factor Authentication (like Clef) plugin for WordPress is vulnerable to privilege escalation via account takeover in all versions up to, and including, 1.2.3. This is due to the plugin not properly validating a user\u0027s identity associated with a token generated. This makes it possible for authenticated attackers, with subscriber-level access and above, to generate valid auth tokens and leverage that to auto-login as other accounts, including administrators, as long as the administrator has the 2FA set up.",
"id": "GHSA-jr4v-gcqw-x774",
"modified": "2025-10-15T09:30:18Z",
"published": "2025-10-15T09:30:18Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-10293"
},
{
"type": "WEB",
"url": "https://wordpress.org/plugins/keyy"
},
{
"type": "WEB",
"url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/1850e6bd-04bc-4510-aba9-e51431363231?source=cve"
}
],
"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:H",
"type": "CVSS_V3"
}
]
}
GHSA-JR59-QJ3R-WCP8
Vulnerability from github – Published: 2022-05-13 01:35 – Updated: 2022-05-13 01:35A vulnerability in the role-based resource checking functionality of the Cisco Unified Computing System (UCS) Director could allow an authenticated, remote attacker to view unauthorized information for any virtual machine in the UCS Director end-user portal and perform any permitted operations on any virtual machine. The permitted operations can be configured for the end user on the virtual machines with either of the following settings: The virtual machine is associated to a Virtual Data Center (VDC) that has an end user self-service policy attached to the VDC. The end user role has VM Management Actions settings configured under User Permissions. This is a global configuration, so all the virtual machines visible in the end-user portal will have the VM management actions available. The vulnerability is due to improper user authentication checks. An attacker could exploit this vulnerability by logging in to the UCS Director with a modified username and valid password. A successful exploit could allow the attacker to gain visibility into and perform actions against all virtual machines in the UCS Director end-user portal of the affected system. This vulnerability affects Cisco Unified Computing System (UCS) Director releases 6.0 and 6.5 prior to patch 3 that are in a default configuration. Cisco Bug IDs: CSCvh53501.
{
"affected": [],
"aliases": [
"CVE-2018-0238"
],
"database_specific": {
"cwe_ids": [
"CWE-287"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2018-04-19T20:29:00Z",
"severity": "CRITICAL"
},
"details": "A vulnerability in the role-based resource checking functionality of the Cisco Unified Computing System (UCS) Director could allow an authenticated, remote attacker to view unauthorized information for any virtual machine in the UCS Director end-user portal and perform any permitted operations on any virtual machine. The permitted operations can be configured for the end user on the virtual machines with either of the following settings: The virtual machine is associated to a Virtual Data Center (VDC) that has an end user self-service policy attached to the VDC. The end user role has VM Management Actions settings configured under User Permissions. This is a global configuration, so all the virtual machines visible in the end-user portal will have the VM management actions available. The vulnerability is due to improper user authentication checks. An attacker could exploit this vulnerability by logging in to the UCS Director with a modified username and valid password. A successful exploit could allow the attacker to gain visibility into and perform actions against all virtual machines in the UCS Director end-user portal of the affected system. This vulnerability affects Cisco Unified Computing System (UCS) Director releases 6.0 and 6.5 prior to patch 3 that are in a default configuration. Cisco Bug IDs: CSCvh53501.",
"id": "GHSA-jr59-qj3r-wcp8",
"modified": "2022-05-13T01:35:33Z",
"published": "2022-05-13T01:35:33Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2018-0238"
},
{
"type": "WEB",
"url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20180418-uscd"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/103919"
},
{
"type": "WEB",
"url": "http://www.securitytracker.com/id/1040708"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-JR9F-3XG9-2J4F
Vulnerability from github – Published: 2024-07-08 03:32 – Updated: 2024-07-08 03:32IBM FlashSystem 5300 USB ports may be usable even if the port has been disabled by the administrator. A user with physical access to the system could use the USB port to cause loss of access to data. IBM X-Force ID: 295935.
{
"affected": [],
"aliases": [
"CVE-2024-39723"
],
"database_specific": {
"cwe_ids": [
"CWE-1299",
"CWE-287"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-07-08T01:15:12Z",
"severity": "MODERATE"
},
"details": "IBM FlashSystem 5300 USB ports may be usable even if the port has been disabled by the administrator. A user with physical access to the system could use the USB port to cause loss of access to data. IBM X-Force ID: 295935.",
"id": "GHSA-jr9f-3xg9-2j4f",
"modified": "2024-07-08T03:32:11Z",
"published": "2024-07-08T03:32:11Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2024-39723"
},
{
"type": "WEB",
"url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/295935"
},
{
"type": "WEB",
"url": "https://www.ibm.com/support/pages/node/7159333"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:P/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-JRG7-Q7CG-93R8
Vulnerability from github – Published: 2023-06-06 09:30 – Updated: 2024-04-04 04:34Transient DOS due to improper authentication in modem while receiving plain TLB OTA request message from network.
{
"affected": [],
"aliases": [
"CVE-2022-40536"
],
"database_specific": {
"cwe_ids": [
"CWE-285",
"CWE-287"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-06-06T08:15:11Z",
"severity": "HIGH"
},
"details": "Transient DOS due to improper authentication in modem while receiving plain TLB OTA request message from network.",
"id": "GHSA-jrg7-q7cg-93r8",
"modified": "2024-04-04T04:34:25Z",
"published": "2023-06-06T09:30:19Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-40536"
},
{
"type": "WEB",
"url": "https://www.qualcomm.com/company/product-security/bulletins/june-2023-bulletin"
}
],
"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"
}
]
}
Mitigation
Strategy: Libraries or Frameworks
Use an authentication framework or library such as the OWASP ESAPI Authentication feature.
CAPEC-114: Authentication Abuse
An attacker obtains unauthorized access to an application, service or device either through knowledge of the inherent weaknesses of an authentication mechanism, or by exploiting a flaw in the authentication scheme's implementation. In such an attack an authentication mechanism is functioning but a carefully controlled sequence of events causes the mechanism to grant access to the attacker.
CAPEC-115: Authentication Bypass
An attacker gains access to application, service, or device with the privileges of an authorized or privileged user by evading or circumventing an authentication mechanism. The attacker is therefore able to access protected data without authentication ever having taken place.
CAPEC-151: Identity Spoofing
Identity Spoofing refers to the action of assuming (i.e., taking on) the identity of some other entity (human or non-human) and then using that identity to accomplish a goal. An adversary may craft messages that appear to come from a different principle or use stolen / spoofed authentication credentials.
CAPEC-194: Fake the Source of Data
An adversary takes advantage of improper authentication to provide data or services under a falsified identity. The purpose of using the falsified identity may be to prevent traceability of the provided data or to assume the rights granted to another individual. One of the simplest forms of this attack would be the creation of an email message with a modified "From" field in order to appear that the message was sent from someone other than the actual sender. The root of the attack (in this case the email system) fails to properly authenticate the source and this results in the reader incorrectly performing the instructed action. Results of the attack vary depending on the details of the attack, but common results include privilege escalation, obfuscation of other attacks, and data corruption/manipulation.
CAPEC-22: Exploiting Trust in Client
An attack of this type exploits vulnerabilities in client/server communication channel authentication and data integrity. It leverages the implicit trust a server places in the client, or more importantly, that which the server believes is the client. An attacker executes this type of attack by communicating directly with the server where the server believes it is communicating only with a valid client. There are numerous variations of this type of attack.
CAPEC-57: Utilizing REST's Trust in the System Resource to Obtain Sensitive Data
This attack utilizes a REST(REpresentational State Transfer)-style applications' trust in the system resources and environment to obtain sensitive data once SSL is terminated.
CAPEC-593: Session Hijacking
This type of attack involves an adversary that exploits weaknesses in an application's use of sessions in performing authentication. The adversary is able to steal or manipulate an active session and use it to gain unathorized access to the application.
CAPEC-633: Token Impersonation
An adversary exploits a weakness in authentication to create an access token (or equivalent) that impersonates a different entity, and then associates a process/thread to that that impersonated token. This action causes a downstream user to make a decision or take action that is based on the assumed identity, and not the response that blocks the adversary.
CAPEC-650: Upload a Web Shell to a Web Server
By exploiting insufficient permissions, it is possible to upload a web shell to a web server in such a way that it can be executed remotely. This shell can have various capabilities, thereby acting as a "gateway" to the underlying web server. The shell might execute at the higher permission level of the web server, providing the ability the execute malicious code at elevated levels.
CAPEC-94: Adversary in the Middle (AiTM)
An adversary targets the communication between two components (typically client and server), in order to alter or obtain data from transactions. A general approach entails the adversary placing themself within the communication channel between the two components.