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.
6129 vulnerabilities reference this CWE, most recent first.
GHSA-H9JQ-9XW6-6CH6
Vulnerability from github – Published: 2022-05-13 01:36 – Updated: 2022-05-13 01:36A vulnerability was discovered in Siemens SiPass integrated (All versions before V2.70) that could allow an attacker with network access to the SiPass integrated server to bypass the authentication mechanism and perform administrative operations.
{
"affected": [],
"aliases": [
"CVE-2017-9939"
],
"database_specific": {
"cwe_ids": [
"CWE-287"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2017-08-08T00:29:00Z",
"severity": "CRITICAL"
},
"details": "A vulnerability was discovered in Siemens SiPass integrated (All versions before V2.70) that could allow an attacker with network access to the SiPass integrated server to bypass the authentication mechanism and perform administrative operations.",
"id": "GHSA-h9jq-9xw6-6ch6",
"modified": "2022-05-13T01:36:04Z",
"published": "2022-05-13T01:36:04Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2017-9939"
},
{
"type": "WEB",
"url": "https://www.siemens.com/cert/pool/cert/siemens_security_advisory_ssa-339433.pdf"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/99578"
}
],
"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-H9JW-G3XJ-5HWG
Vulnerability from github – Published: 2023-05-26 18:30 – Updated: 2025-11-03 21:30A vulnerability was found in libssh, where the authentication check of the connecting client can be bypassed in thepki_verify_data_signature function in memory allocation problems. This issue may happen if there is insufficient memory or the memory usage is limited. The problem is caused by the return value rc, which is initialized to SSH_ERROR and later rewritten to save the return value of the function call pki_key_check_hash_compatible. The value of the variable is not changed between this point and the cryptographic verification. Therefore any error between them calls goto error returning SSH_OK.
{
"affected": [],
"aliases": [
"CVE-2023-2283"
],
"database_specific": {
"cwe_ids": [
"CWE-287"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2023-05-26T18:15:13Z",
"severity": "MODERATE"
},
"details": "A vulnerability was found in libssh, where the authentication check of the connecting client can be bypassed in the`pki_verify_data_signature` function in memory allocation problems. This issue may happen if there is insufficient memory or the memory usage is limited. The problem is caused by the return value `rc,` which is initialized to SSH_ERROR and later rewritten to save the return value of the function call `pki_key_check_hash_compatible.` The value of the variable is not changed between this point and the cryptographic verification. Therefore any error between them calls `goto error` returning SSH_OK.",
"id": "GHSA-h9jw-g3xj-5hwg",
"modified": "2025-11-03T21:30:49Z",
"published": "2023-05-26T18:30:21Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-2283"
},
{
"type": "WEB",
"url": "https://access.redhat.com/security/cve/CVE-2023-2283"
},
{
"type": "WEB",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2189736"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/27PD44ALQTZXX7K6JAM3BXBUHYA6DFFN"
},
{
"type": "WEB",
"url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/27PD44ALQTZXX7K6JAM3BXBUHYA6DFFN"
},
{
"type": "WEB",
"url": "https://security.gentoo.org/glsa/202312-05"
},
{
"type": "WEB",
"url": "https://security.netapp.com/advisory/ntap-20240201-0005"
},
{
"type": "WEB",
"url": "https://www.libssh.org/security/advisories/CVE-2023-2283.txt"
},
{
"type": "WEB",
"url": "http://packetstormsecurity.com/files/172861/libssh-0.9.6-0.10.4-pki_verify_data_signature-Authorization-Bypass.html"
},
{
"type": "WEB",
"url": "http://seclists.org/fulldisclosure/2025/Feb/18"
}
],
"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-H9V6-4CV4-GHHQ
Vulnerability from github – Published: 2026-07-16 12:32 – Updated: 2026-07-16 12:32Authentication bypass by primary weakness vulnerability in Spring Security Spring Authorization Server.
This issue affects Spring Authorization Server: from 7.0.0 through 7.0.4, from 1.5.0 through 1.5.6, from 1.4.0 through 1.4.9, from 1.3.0 through 1.3.10.
{
"affected": [],
"aliases": [
"CVE-2026-22752"
],
"database_specific": {
"cwe_ids": [
"CWE-287"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-07-16T10:16:24Z",
"severity": "CRITICAL"
},
"details": "Authentication bypass by primary weakness vulnerability in Spring Security Spring Authorization Server.\n\nThis issue affects Spring Authorization Server: from 7.0.0 through 7.0.4, from 1.5.0 through 1.5.6, from 1.4.0 through 1.4.9, from 1.3.0 through 1.3.10.",
"id": "GHSA-h9v6-4cv4-ghhq",
"modified": "2026-07-16T12:32:28Z",
"published": "2026-07-16T12:32:28Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-22752"
},
{
"type": "WEB",
"url": "https://spring.io/security/cve-2026-22752"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-H9WF-V78Q-RP3M
Vulnerability from github – Published: 2022-05-13 01:43 – Updated: 2025-04-20 03:46Xpress Server in SAP POS does not require authentication for file read and erase operations, daemon shutdown, terminal read operations, or certain attacks on credentials. This is SAP Security Note 2520064.
{
"affected": [],
"aliases": [
"CVE-2017-15293"
],
"database_specific": {
"cwe_ids": [
"CWE-287"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2017-10-16T16:29:00Z",
"severity": "CRITICAL"
},
"details": "Xpress Server in SAP POS does not require authentication for file read and erase operations, daemon shutdown, terminal read operations, or certain attacks on credentials. This is SAP Security Note 2520064.",
"id": "GHSA-h9wf-v78q-rp3m",
"modified": "2025-04-20T03:46:51Z",
"published": "2022-05-13T01:43:43Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2017-15293"
},
{
"type": "WEB",
"url": "https://blogs.sap.com/2017/09/12/sap-security-patch-day-september-2017"
},
{
"type": "WEB",
"url": "https://erpscan.io/advisories/erpscan-17-032-sap-pos-missing-authentication-xpressserver"
},
{
"type": "WEB",
"url": "https://erpscan.io/research/hacking-sap-pos"
},
{
"type": "WEB",
"url": "http://www.securityfocus.com/bid/100713"
}
],
"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-H9XP-MRV3-8452
Vulnerability from github – Published: 2022-12-20 21:30 – Updated: 2022-12-24 06:30A thread security vulnerability exists in the authentication process. Successful exploitation of this vulnerability may affect data integrity, confidentiality, and availability.
{
"affected": [],
"aliases": [
"CVE-2022-46316"
],
"database_specific": {
"cwe_ids": [
"CWE-287"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-12-20T21:15:00Z",
"severity": "CRITICAL"
},
"details": "A thread security vulnerability exists in the authentication process. Successful exploitation of this vulnerability may affect data integrity, confidentiality, and availability.",
"id": "GHSA-h9xp-mrv3-8452",
"modified": "2022-12-24T06:30:25Z",
"published": "2022-12-20T21:30:17Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-46316"
},
{
"type": "WEB",
"url": "https://device.harmonyos.com/en/docs/security/update/security-bulletins-202212-0000001462975397"
}
],
"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-H9XP-VXPC-W625
Vulnerability from github – Published: 2022-05-24 19:07 – Updated: 2022-07-13 00:01A remote authentication bypass vulnerability was discovered in Aruba ClearPass Policy Manager version(s): Prior to 6.10.0, 6.9.6 and 6.8.9. Aruba has released updates to ClearPass Policy Manager that address this security vulnerability.
{
"affected": [],
"aliases": [
"CVE-2021-29151"
],
"database_specific": {
"cwe_ids": [
"CWE-287"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2021-07-08T16:15:00Z",
"severity": "MODERATE"
},
"details": "A remote authentication bypass vulnerability was discovered in Aruba ClearPass Policy Manager version(s): Prior to 6.10.0, 6.9.6 and 6.8.9. Aruba has released updates to ClearPass Policy Manager that address this security vulnerability.",
"id": "GHSA-h9xp-vxpc-w625",
"modified": "2022-07-13T00:01:16Z",
"published": "2022-05-24T19:07:13Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2021-29151"
},
{
"type": "WEB",
"url": "https://www.arubanetworks.com/assets/alert/ARUBA-PSA-2021-012.txt"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
"type": "CVSS_V3"
}
]
}
GHSA-HC28-PPXF-9RHP
Vulnerability from github – Published: 2024-04-24 18:30 – Updated: 2026-04-28 21:34Improper Authentication vulnerability in Mestres do WP Checkout Mestres WP allows Accessing Functionality Not Properly Constrained by ACLs.This issue affects Checkout Mestres WP: from n/a through 7.1.9.7.
{
"affected": [],
"aliases": [
"CVE-2023-51471"
],
"database_specific": {
"cwe_ids": [
"CWE-287"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-04-24T17:15:46Z",
"severity": "HIGH"
},
"details": "Improper Authentication vulnerability in Mestres do WP Checkout Mestres WP allows Accessing Functionality Not Properly Constrained by ACLs.This issue affects Checkout Mestres WP: from n/a through 7.1.9.7.",
"id": "GHSA-hc28-ppxf-9rhp",
"modified": "2026-04-28T21:34:56Z",
"published": "2024-04-24T18:30:33Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-51471"
},
{
"type": "WEB",
"url": "https://patchstack.com/database/vulnerability/checkout-mestres-wp/wordpress-checkout-mestres-wp-plugin-7-1-9-6-unauthenticated-arbitrary-options-update-vulnerability?_s_id=cve"
}
],
"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:L",
"type": "CVSS_V3"
}
]
}
GHSA-HC66-P838-6XFP
Vulnerability from github – Published: 2024-01-23 18:31 – Updated: 2024-01-23 18:31HPE OneView may allow clusterService Authentication Bypass resulting in denial of service.
{
"affected": [],
"aliases": [
"CVE-2023-50275"
],
"database_specific": {
"cwe_ids": [
"CWE-287"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2024-01-23T17:15:10Z",
"severity": "HIGH"
},
"details": "HPE OneView may allow clusterService Authentication Bypass resulting in denial of service.",
"id": "GHSA-hc66-p838-6xfp",
"modified": "2024-01-23T18:31:11Z",
"published": "2024-01-23T18:31:11Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2023-50275"
},
{
"type": "WEB",
"url": "https://support.hpe.com/hpesc/public/docDisplay?docLocale=en_US\u0026docId=hpesbgn04586en_us"
}
],
"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"
}
]
}
GHSA-HC73-59HP-RQ5M
Vulnerability from github – Published: 2022-11-01 12:00 – Updated: 2022-11-02 12:00Broken access controls on PDFtron WebviewerUI in M-Files Hubshare before 3.3.11.3 allows unauthenticated attackers to upload malicious files to the application server.
{
"affected": [],
"aliases": [
"CVE-2022-39019"
],
"database_specific": {
"cwe_ids": [
"CWE-287"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2022-10-31T21:15:00Z",
"severity": "HIGH"
},
"details": "Broken access controls on PDFtron WebviewerUI in M-Files Hubshare before 3.3.11.3 allows unauthenticated attackers to upload malicious files to the application server.",
"id": "GHSA-hc73-59hp-rq5m",
"modified": "2022-11-02T12:00:44Z",
"published": "2022-11-01T12:00:36Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2022-39019"
},
{
"type": "WEB",
"url": "https://www.themissinglink.com.au/security-advisories/cve-2022-39019"
}
],
"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:N",
"type": "CVSS_V3"
}
]
}
GHSA-HC7G-786W-W835
Vulnerability from github – Published: 2022-05-24 17:13 – Updated: 2022-05-24 17:13An issue was discovered in the IMPress for IDX Broker plugin before 2.6.2 for WordPress. wrappers.php allows a logged-in user (with the Subscriber role) to permanently delete arbitrary posts and pages, create new posts with arbitrary subjects, and modify the subjects of existing posts and pages (via create_dynamic_page and delete_dynamic_page).
{
"affected": [],
"aliases": [
"CVE-2020-9514"
],
"database_specific": {
"cwe_ids": [
"CWE-287"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2020-04-07T17:15:00Z",
"severity": "MODERATE"
},
"details": "An issue was discovered in the IMPress for IDX Broker plugin before 2.6.2 for WordPress. wrappers.php allows a logged-in user (with the Subscriber role) to permanently delete arbitrary posts and pages, create new posts with arbitrary subjects, and modify the subjects of existing posts and pages (via create_dynamic_page and delete_dynamic_page).",
"id": "GHSA-hc7g-786w-w835",
"modified": "2022-05-24T17:13:40Z",
"published": "2022-05-24T17:13:40Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2020-9514"
},
{
"type": "WEB",
"url": "https://wordpress.org/plugins/idx-broker-platinum/#developers"
},
{
"type": "WEB",
"url": "https://www.wordfence.com/blog/2020/03/vulnerabilities-patched-in-impress-for-idx-broker"
}
],
"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.