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.
6621 vulnerabilities reference this CWE, most recent first.
GHSA-4P8G-CPW8-6WFM
Vulnerability from github – Published: 2025-10-22 15:31 – Updated: 2025-10-22 15:31TM2 Monitoring v3.04 contains an authentication bypass and plaintext credential disclosure.
{
"affected": [],
"aliases": [
"CVE-2025-56447"
],
"database_specific": {
"cwe_ids": [
"CWE-287"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2025-10-22T14:15:50Z",
"severity": "CRITICAL"
},
"details": "TM2 Monitoring v3.04 contains an authentication bypass and plaintext credential disclosure.",
"id": "GHSA-4p8g-cpw8-6wfm",
"modified": "2025-10-22T15:31:12Z",
"published": "2025-10-22T15:31:12Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-56447"
},
{
"type": "WEB",
"url": "https://gist.github.com/stSLAYER/b0be1f0fe95f56c08ef2bd69f40cd817"
},
{
"type": "WEB",
"url": "https://github.com/stSLAYER/ZeroDayVulnerabilities-/blob/main/RT-Systems/POC/README.md"
},
{
"type": "WEB",
"url": "http://rt.com"
},
{
"type": "WEB",
"url": "http://tm2.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:H",
"type": "CVSS_V3"
}
]
}
GHSA-4PC7-VQV5-5R3V
Vulnerability from github – Published: 2022-04-27 21:25 – Updated: 2022-12-01 22:10Description
A flaw was found in keycloak, where the default ECP binding flow allows other authentication flows to be bypassed. By exploiting this behavior an attacker can bypass the MFA authentication by sending a SOAP request with an AuthnRequest and Authorization header with the user's credentials. The highest threat from this vulnerability is to confidentiality and integrity.
{
"affected": [
{
"package": {
"ecosystem": "Maven",
"name": "org.keycloak:keycloak-saml-core"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "18.0.0"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2021-3827"
],
"database_specific": {
"cwe_ids": [
"CWE-287"
],
"github_reviewed": true,
"github_reviewed_at": "2022-04-27T21:25:59Z",
"nvd_published_at": "2022-08-23T16:15:00Z",
"severity": "HIGH"
},
"details": "### Description\nA flaw was found in keycloak, where the default ECP binding flow allows other authentication flows to be bypassed. By exploiting this behavior an attacker can bypass the MFA authentication by sending a SOAP request with an AuthnRequest and Authorization header with the user\u0027s credentials. The highest threat from this vulnerability is to confidentiality and integrity.\n",
"id": "GHSA-4pc7-vqv5-5r3v",
"modified": "2022-12-01T22:10:45Z",
"published": "2022-04-27T21:25:59Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/keycloak/keycloak/security/advisories/GHSA-4pc7-vqv5-5r3v"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-3827"
},
{
"type": "WEB",
"url": "https://github.com/keycloak/keycloak/commit/44000caaf5051d7f218d1ad79573bd3d175cad0d"
},
{
"type": "WEB",
"url": "https://access.redhat.com/security/cve/CVE-2021-3827"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2007512"
},
{
"type": "PACKAGE",
"url": "https://github.com/keycloak/keycloak"
}
],
"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"
}
],
"summary": "ECP SAML binding bypasses authentication flows"
}
GHSA-4PF4-J777-CGMF
Vulnerability from github – Published: 2026-06-22 18:34 – Updated: 2026-06-22 18:34IBM Langflow OSS 1.0.0 through 1.8.4 could allow unauthenticated attackers to access protected MCP project resources and execute MCP operations due to improper authorization enforcement in the Streamable MCP transport endpoint.
{
"affected": [],
"aliases": [
"CVE-2026-7664"
],
"database_specific": {
"cwe_ids": [
"CWE-287"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-06-22T16:16:41Z",
"severity": "CRITICAL"
},
"details": "IBM Langflow OSS 1.0.0 through 1.8.4 could allow unauthenticated attackers to access protected MCP project resources and execute MCP operations due to improper authorization enforcement in the Streamable MCP transport endpoint.",
"id": "GHSA-4pf4-j777-cgmf",
"modified": "2026-06-22T18:34:16Z",
"published": "2026-06-22T18:34:16Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-7664"
},
{
"type": "WEB",
"url": "https://www.ibm.com/support/pages/node/7277243"
}
],
"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-4PFH-PQFV-VHRC
Vulnerability from github – Published: 2022-05-13 01:39 – Updated: 2022-05-13 01:39Unspecified vulnerability in HP Intelligent Management Center (iMC) and HP IMC Service Operation Management Software Module allows remote attackers to bypass authentication via unknown vectors, aka ZDI-CAN-1644.
{
"affected": [],
"aliases": [
"CVE-2013-4824"
],
"database_specific": {
"cwe_ids": [
"CWE-287"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2013-10-13T10:20:00Z",
"severity": "HIGH"
},
"details": "Unspecified vulnerability in HP Intelligent Management Center (iMC) and HP IMC Service Operation Management Software Module allows remote attackers to bypass authentication via unknown vectors, aka ZDI-CAN-1644.",
"id": "GHSA-4pfh-pqfv-vhrc",
"modified": "2022-05-13T01:39:08Z",
"published": "2022-05-13T01:39:08Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2013-4824"
},
{
"type": "WEB",
"url": "https://h20564.www2.hp.com/portal/site/hpsc/public/kb/docDisplay?docId=emr_na-c03943547"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-4PFW-7888-8Q2G
Vulnerability from github – Published: 2026-08-27 21:31 – Updated: 2026-08-28 21:31A vulnerability in the WebSocket endpoint of gpt-researcher v0.14.7 and before allows an unauthenticated remote attacker to achieve code execution via malicious Model Context Protocol configurations.
{
"affected": [],
"aliases": [
"CVE-2026-37006"
],
"database_specific": {
"cwe_ids": [
"CWE-287"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-08-27T20:17:41Z",
"severity": "CRITICAL"
},
"details": "A vulnerability in the WebSocket endpoint of gpt-researcher v0.14.7 and before allows an unauthenticated remote attacker to achieve code execution via malicious Model Context Protocol configurations.",
"id": "GHSA-4pfw-7888-8q2g",
"modified": "2026-08-28T21:31:06Z",
"published": "2026-08-27T21:31:31Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-37006"
},
{
"type": "WEB",
"url": "https://yerangamage.com/cves/detail/?slug=gptresearcher-websocket-rce"
},
{
"type": "WEB",
"url": "http://gpt-researcher.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:H",
"type": "CVSS_V3"
}
]
}
GHSA-4PH4-5RPM-WRW9
Vulnerability from github – Published: 2026-07-27 09:31 – Updated: 2026-07-27 18:31The MainWP Child WordPress plugin before 6.1.2 does not verify the requester's identity in its site-registration request handler when password authentication has been disabled for the targeted account, allowing an unauthenticated attacker to obtain a valid authentication session as that account, including an administrator, by naming its login in a single registration request.
{
"affected": [],
"aliases": [
"CVE-2026-12255"
],
"database_specific": {
"cwe_ids": [
"CWE-287"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-07-27T07:16:24Z",
"severity": "HIGH"
},
"details": "The MainWP Child WordPress plugin before 6.1.2 does not verify the requester\u0027s identity in its site-registration request handler when password authentication has been disabled for the targeted account, allowing an unauthenticated attacker to obtain a valid authentication session as that account, including an administrator, by naming its login in a single registration request.",
"id": "GHSA-4ph4-5rpm-wrw9",
"modified": "2026-07-27T18:31:46Z",
"published": "2026-07-27T09:31:24Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-12255"
},
{
"type": "WEB",
"url": "https://wpscan.com/vulnerability/6ecd37bf-f48a-4f7f-8a93-e7f0475371af"
}
],
"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"
}
]
}
GHSA-4PJP-5725-8MXH
Vulnerability from github – Published: 2022-05-13 01:14 – Updated: 2022-05-13 01:14A vulnerability in access control list (ACL) functionality of the Gigabit Ethernet Management interface of Cisco IOS XE Software could allow an unauthenticated, remote attacker to reach the configured IP addresses on the Gigabit Ethernet Management interface. The vulnerability is due to a logic error that was introduced in the Cisco IOS XE Software 16.1.1 Release, which prevents the ACL from working when applied against the management interface. An attacker could exploit this issue by attempting to access the device via the management interface.
{
"affected": [],
"aliases": [
"CVE-2019-1759"
],
"database_specific": {
"cwe_ids": [
"CWE-287"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2019-03-28T01:29:00Z",
"severity": "MODERATE"
},
"details": "A vulnerability in access control list (ACL) functionality of the Gigabit Ethernet Management interface of Cisco IOS XE Software could allow an unauthenticated, remote attacker to reach the configured IP addresses on the Gigabit Ethernet Management interface. The vulnerability is due to a logic error that was introduced in the Cisco IOS XE Software 16.1.1 Release, which prevents the ACL from working when applied against the management interface. An attacker could exploit this issue by attempting to access the device via the management interface.",
"id": "GHSA-4pjp-5725-8mxh",
"modified": "2022-05-13T01:14:47Z",
"published": "2022-05-13T01:14:47Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2019-1759"
},
{
"type": "WEB",
"url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20190327-mgmtacl"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/107660"
}
],
"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-4PPQ-5752-XRXR
Vulnerability from github – Published: 2022-05-13 01:38 – Updated: 2022-05-13 01:38A vulnerability in the REST API of the web-based user interface (web UI) of Cisco IOS XE 3.1 through 16.5 could allow an unauthenticated, remote attacker to bypass authentication to the REST API of the web UI of the affected software. The vulnerability is due to insufficient input validation for the REST API of the affected software. An attacker could exploit this vulnerability by sending a malicious API request to an affected device. A successful exploit could allow the attacker to bypass authentication and gain access to the web UI of the affected software. This vulnerability affects Cisco devices that are running a vulnerable release of Cisco IOS XE Software, if the HTTP Server feature is enabled for the device. The newly redesigned, web-based administration UI was introduced in the Denali 16.2 Release of Cisco IOS XE Software. This vulnerability does not affect the web-based administration UI in earlier releases of Cisco IOS XE Software. Cisco Bug IDs: CSCuz46036.
{
"affected": [],
"aliases": [
"CVE-2017-12229"
],
"database_specific": {
"cwe_ids": [
"CWE-287"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2017-09-29T01:34:00Z",
"severity": "CRITICAL"
},
"details": "A vulnerability in the REST API of the web-based user interface (web UI) of Cisco IOS XE 3.1 through 16.5 could allow an unauthenticated, remote attacker to bypass authentication to the REST API of the web UI of the affected software. The vulnerability is due to insufficient input validation for the REST API of the affected software. An attacker could exploit this vulnerability by sending a malicious API request to an affected device. A successful exploit could allow the attacker to bypass authentication and gain access to the web UI of the affected software. This vulnerability affects Cisco devices that are running a vulnerable release of Cisco IOS XE Software, if the HTTP Server feature is enabled for the device. The newly redesigned, web-based administration UI was introduced in the Denali 16.2 Release of Cisco IOS XE Software. This vulnerability does not affect the web-based administration UI in earlier releases of Cisco IOS XE Software. Cisco Bug IDs: CSCuz46036.",
"id": "GHSA-4ppq-5752-xrxr",
"modified": "2022-05-13T01:38:09Z",
"published": "2022-05-13T01:38:09Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2017-12229"
},
{
"type": "WEB",
"url": "https://tools.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-20170927-restapi"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/101032"
},
{
"type": "WEB",
"url": "http://www.securitytracker.com/id/1039447"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-4PVC-C6R4-QVQ2
Vulnerability from github – Published: 2022-05-17 05:13 – Updated: 2022-05-17 05:13The internal message protocol for Walrus in Eucalyptus 3.2.0 and earlier does not require signatures for unspecified request headers, which allows attackers to (1) delete or (2) upload snapshots.
{
"affected": [],
"aliases": [
"CVE-2012-4066"
],
"database_specific": {
"cwe_ids": [
"CWE-287"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2013-03-08T18:55:00Z",
"severity": "MODERATE"
},
"details": "The internal message protocol for Walrus in Eucalyptus 3.2.0 and earlier does not require signatures for unspecified request headers, which allows attackers to (1) delete or (2) upload snapshots.",
"id": "GHSA-4pvc-c6r4-qvq2",
"modified": "2022-05-17T05:13:34Z",
"published": "2022-05-17T05:13:34Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2012-4066"
},
{
"type": "WEB",
"url": "http://www.eucalyptus.com/eucalyptus-cloud/security/esa-08"
}
],
"schema_version": "1.4.0",
"severity": []
}
GHSA-4PW2-X5QF-3FX4
Vulnerability from github – Published: 2022-05-17 03:12 – Updated: 2022-05-17 03:12IBM General Parallel File System (GPFS) 3.4 before 3.4.0.32, 3.5 before 3.5.0.24, and 4.1 before 4.1.0.7 in certain cipherList configurations allows remote attackers to bypass authentication and execute arbitrary programs as root via unspecified vectors.
{
"affected": [],
"aliases": [
"CVE-2015-0198"
],
"database_specific": {
"cwe_ids": [
"CWE-287"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2015-03-24T02:01:00Z",
"severity": "HIGH"
},
"details": "IBM General Parallel File System (GPFS) 3.4 before 3.4.0.32, 3.5 before 3.5.0.24, and 4.1 before 4.1.0.7 in certain cipherList configurations allows remote attackers to bypass authentication and execute arbitrary programs as root via unspecified vectors.",
"id": "GHSA-4pw2-x5qf-3fx4",
"modified": "2022-05-17T03:12:32Z",
"published": "2022-05-17T03:12:32Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2015-0198"
},
{
"type": "WEB",
"url": "http://www-01.ibm.com/support/docview.wss?uid=isg3T1022062"
},
{
"type": "WEB",
"url": "http://www-304.ibm.com/support/docview.wss?uid=swg21902662"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/73278"
},
{
"type": "WEB",
"url": "http://www.securitytracker.com/id/1032880"
}
],
"schema_version": "1.4.0",
"severity": []
}
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.