Common Weakness Enumeration

CWE-287

Discouraged

Improper 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.

6893 vulnerabilities reference this CWE, most recent first.

GHSA-M2H5-JWRW-X8MR

Vulnerability from github – Published: 2026-07-10 00:31 – Updated: 2026-07-10 00:31
VLAI
Details

The LoginPress Pro plugin for WordPress is vulnerable to Authentication Bypass via Unverified OAuth Email in all versions up to and including 6.2.3. The vulnerability exists in the loginpress_on_discord_login() Discord OAuth callback handler, which accepts the email field returned by Discord's /users/@me endpoint without ever checking that the profile's verified flag is true, then directly maps that email to a local WordPress account via get_user_by('email', $profile['email']) and issues an authenticated session cookie via wp_set_auth_cookie(). This makes it possible for unauthenticated attackers to take over any existing WordPress account — including administrator accounts — by registering a Discord account configured with an unverified email address that matches the target user's registered WordPress email and completing the standard Discord OAuth flow.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2026-12595"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-287"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-07-10T00:16:32Z",
    "severity": "HIGH"
  },
  "details": "The LoginPress Pro plugin for WordPress is vulnerable to Authentication Bypass via Unverified OAuth Email in all versions up to and including 6.2.3. The vulnerability exists in the loginpress_on_discord_login() Discord OAuth callback handler, which accepts the email field returned by Discord\u0027s /users/@me endpoint without ever checking that the profile\u0027s verified flag is true, then directly maps that email to a local WordPress account via get_user_by(\u0027email\u0027, $profile[\u0027email\u0027]) and issues an authenticated session cookie via wp_set_auth_cookie(). This makes it possible for unauthenticated attackers to take over any existing WordPress account \u2014 including administrator accounts \u2014 by registering a Discord account configured with an unverified email address that matches the target user\u0027s registered WordPress email and completing the standard Discord OAuth flow.",
  "id": "GHSA-m2h5-jwrw-x8mr",
  "modified": "2026-07-10T00:31:27Z",
  "published": "2026-07-10T00:31:27Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-12595"
    },
    {
      "type": "WEB",
      "url": "https://loginpress.pro"
    },
    {
      "type": "WEB",
      "url": "https://www.wordfence.com/threat-intel/vulnerabilities/id/5949980f-2506-49be-9105-40ec2d2a4f77?source=cve"
    }
  ],
  "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-M2PJ-MJHW-X9FM

Vulnerability from github – Published: 2024-01-12 18:30 – Updated: 2025-10-22 00:32
VLAI
Details

An authentication bypass vulnerability in the web component of Ivanti ICS 9.x, 22.x and Ivanti Policy Secure allows a remote attacker to access restricted resources by bypassing control checks.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2023-46805"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-287"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-01-12T17:15:09Z",
    "severity": "HIGH"
  },
  "details": "An authentication bypass vulnerability in the web component of Ivanti ICS 9.x, 22.x and Ivanti Policy Secure allows a remote attacker to access restricted resources by bypassing control checks.",
  "id": "GHSA-m2pj-mjhw-x9fm",
  "modified": "2025-10-22T00:32:58Z",
  "published": "2024-01-12T18:30:20Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-46805"
    },
    {
      "type": "WEB",
      "url": "https://forums.ivanti.com/s/article/CVE-2023-46805-Authentication-Bypass-CVE-2024-21887-Command-Injection-for-Ivanti-Connect-Secure-and-Ivanti-Policy-Secure-Gateways?language=en_US"
    },
    {
      "type": "WEB",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2023-46805"
    },
    {
      "type": "WEB",
      "url": "http://packetstormsecurity.com/files/176668/Ivanti-Connect-Secure-Unauthenticated-Remote-Code-Execution.html"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-M2XF-J9X2-H96P

Vulnerability from github – Published: 2026-07-22 00:31 – Updated: 2026-07-22 00:31
VLAI
Details

Vulnerability in the PeopleSoft Enterprise CS Student Records product of Oracle PeopleSoft (component: Research Tracking). The supported version that is affected is 9.2.38. Easily exploitable vulnerability allows low privileged attacker with network access via HTTPS to compromise PeopleSoft Enterprise CS Student Records. Successful attacks of this vulnerability can result in unauthorized creation, deletion or modification access to critical data or all PeopleSoft Enterprise CS Student Records accessible data as well as unauthorized access to critical data or complete access to all PeopleSoft Enterprise CS Student Records accessible data. CVSS 3.1 Base Score 8.1 (Confidentiality and Integrity impacts). CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N).

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2026-60599"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-284",
      "CWE-287"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-07-21T22:18:00Z",
    "severity": "HIGH"
  },
  "details": "Vulnerability in the PeopleSoft Enterprise CS Student Records product of Oracle PeopleSoft (component: Research Tracking).   The supported version that is affected is 9.2.38. Easily exploitable vulnerability allows low privileged attacker with network access via HTTPS to compromise PeopleSoft Enterprise CS Student Records.  Successful attacks of this vulnerability can result in  unauthorized creation, deletion or modification access to critical data or all PeopleSoft Enterprise CS Student Records accessible data as well as  unauthorized access to critical data or complete access to all PeopleSoft Enterprise CS Student Records accessible data. CVSS 3.1 Base Score 8.1 (Confidentiality and Integrity impacts).  CVSS Vector: (CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N).",
  "id": "GHSA-m2xf-j9x2-h96p",
  "modified": "2026-07-22T00:31:50Z",
  "published": "2026-07-22T00:31:50Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-60599"
    },
    {
      "type": "WEB",
      "url": "https://www.oracle.com/security-alerts/cpujul2026.html"
    }
  ],
  "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"
    }
  ]
}

GHSA-M2XP-JXFG-QQ6G

Vulnerability from github – Published: 2022-11-22 03:30 – Updated: 2025-04-29 13:14
VLAI
Summary
CKAN contains Improper Authentication leading to account takeover
Details

CKAN through 2.9.6 account takeovers by unauthenticated users when an existing user id is sent via an HTTP POST request. This allows a user to take over an existing account including superuser accounts.

Show details on source website

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "ckan"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "2.9.7"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2022-43685"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-287",
      "CWE-862"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2023-02-02T16:59:55Z",
    "nvd_published_at": "2022-11-22T01:15:00Z",
    "severity": "HIGH"
  },
  "details": "CKAN through 2.9.6 account takeovers by unauthenticated users when an existing user id is sent via an HTTP POST request. This allows a user to take over an existing account including superuser accounts.",
  "id": "GHSA-m2xp-jxfg-qq6g",
  "modified": "2025-04-29T13:14:27Z",
  "published": "2022-11-22T03:30:56Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2022-43685"
    },
    {
      "type": "WEB",
      "url": "https://ckan.org"
    },
    {
      "type": "WEB",
      "url": "https://ckan.org/blog/get-latest-patch-releases-your-ckan-site-october-2022"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/ckan/ckan"
    },
    {
      "type": "WEB",
      "url": "https://github.com/pypa/advisory-database/tree/main/vulns/ckan/PYSEC-2022-42987.yaml"
    }
  ],
  "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"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "CKAN contains Improper Authentication leading to account takeover"
}

GHSA-M2XX-23GX-734V

Vulnerability from github – Published: 2026-07-22 15:31 – Updated: 2026-08-10 18:32
VLAI
Details

An authentication bypass vulnerability in the Check Point SmartConsole login process allows an unauthenticated remote attacker to obtain an application login token and use it to authenticate with full administrative privileges. Successful exploitation allows the attacker to modify security policies and security configurations. Remote exploitation requires internet access to the Management Server IP address and a configuration that does not restrict Trusted Clients. Check Point is aware that this vulnerability is being exploited and has affected a very small number of customers.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2026-16232"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-287"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-07-22T14:17:15Z",
    "severity": "CRITICAL"
  },
  "details": "An authentication bypass vulnerability in the Check Point SmartConsole login process allows an unauthenticated remote attacker to obtain an application login token and use it to authenticate with full administrative privileges. Successful exploitation allows the attacker to modify security policies and security configurations. Remote exploitation requires internet access to the Management Server IP address and a configuration that does not restrict Trusted Clients. Check Point is aware that this vulnerability is being exploited and has affected a very small number of customers.",
  "id": "GHSA-m2xx-23gx-734v",
  "modified": "2026-08-10T18:32:03Z",
  "published": "2026-07-22T15:31:23Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-16232"
    },
    {
      "type": "WEB",
      "url": "https://support.checkpoint.com/results/sk/sk185169"
    },
    {
      "type": "WEB",
      "url": "https://vincent.vulcoord.net/score/?state=KEV\u0026state=Reassess\u0026excludecna=linux\u0026cve=CVE-2026-16232\u0026analyze=1"
    },
    {
      "type": "WEB",
      "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2026-16232"
    }
  ],
  "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: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-M32P-568P-HPC9

Vulnerability from github – Published: 2022-05-24 17:04 – Updated: 2022-05-24 17:04
VLAI
Details

An exploitable denial-of-service vulnerability exists in the Linux kernel prior to mainline 5.3. An attacker could exploit this vulnerability by triggering AP to send IAPP location updates for stations before the required authentication process has completed. This could lead to different denial-of-service scenarios, either by causing CAM table attacks, or by leading to traffic flapping if faking already existing clients in other nearby APs of the same wireless infrastructure. An attacker can forge Authentication and Association Request packets to trigger this vulnerability.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2019-5108"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-20",
      "CWE-287"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2019-12-23T19:15:00Z",
    "severity": "LOW"
  },
  "details": "An exploitable denial-of-service vulnerability exists in the Linux kernel prior to mainline 5.3. An attacker could exploit this vulnerability by triggering AP to send IAPP location updates for stations before the required authentication process has completed. This could lead to different denial-of-service scenarios, either by causing CAM table attacks, or by leading to traffic flapping if faking already existing clients in other nearby APs of the same wireless infrastructure. An attacker can forge Authentication and Association Request packets to trigger this vulnerability.",
  "id": "GHSA-m32p-568p-hpc9",
  "modified": "2022-05-24T17:04:55Z",
  "published": "2022-05-24T17:04:55Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2019-5108"
    },
    {
      "type": "WEB",
      "url": "https://git.kernel.org/linus/3e493173b7841259a08c5c8e5cbe90adb349da7e"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2020/06/msg00011.html"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2020/06/msg00012.html"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2020/06/msg00013.html"
    },
    {
      "type": "WEB",
      "url": "https://security.netapp.com/advisory/ntap-20200204-0002"
    },
    {
      "type": "WEB",
      "url": "https://talosintelligence.com/vulnerability_reports/TALOS-2019-0900"
    },
    {
      "type": "WEB",
      "url": "https://usn.ubuntu.com/4285-1"
    },
    {
      "type": "WEB",
      "url": "https://usn.ubuntu.com/4286-1"
    },
    {
      "type": "WEB",
      "url": "https://usn.ubuntu.com/4286-2"
    },
    {
      "type": "WEB",
      "url": "https://usn.ubuntu.com/4287-1"
    },
    {
      "type": "WEB",
      "url": "https://usn.ubuntu.com/4287-2"
    },
    {
      "type": "WEB",
      "url": "https://www.debian.org/security/2020/dsa-4698"
    },
    {
      "type": "WEB",
      "url": "https://www.oracle.com/security-alerts/cpuApr2021.html"
    },
    {
      "type": "WEB",
      "url": "http://packetstormsecurity.com/files/156455/Kernel-Live-Patch-Security-Notice-LSN-0063-1.html"
    }
  ],
  "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-M32X-X3RJ-77C3

Vulnerability from github – Published: 2022-05-14 03:22 – Updated: 2022-05-14 03:22
VLAI
Details

plays_service.exe in the plays.tv service before 1.27.7.0, as distributed in AMD driver-installation packages and Gaming Evolved products, executes code at a user-defined (local or SMB) path as SYSTEM when the execute_installer parameter is used in an HTTP message. This occurs without properly authenticating the user.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2018-6546"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-287"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2018-04-13T16:29:00Z",
    "severity": "CRITICAL"
  },
  "details": "plays_service.exe in the plays.tv service before 1.27.7.0, as distributed in AMD driver-installation packages and Gaming Evolved products, executes code at a user-defined (local or SMB) path as SYSTEM when the execute_installer parameter is used in an HTTP message. This occurs without properly authenticating the user.",
  "id": "GHSA-m32x-x3rj-77c3",
  "modified": "2022-05-14T03:22:26Z",
  "published": "2022-05-14T03:22:26Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2018-6546"
    },
    {
      "type": "WEB",
      "url": "https://github.com/securifera/CVE-2018-6546-Exploit"
    },
    {
      "type": "WEB",
      "url": "https://www.exploit-db.com/exploits/44476"
    },
    {
      "type": "WEB",
      "url": "https://www.securifera.com/advisories/CVE-2018-6546"
    }
  ],
  "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-M34H-9XMF-W4XR

Vulnerability from github – Published: 2022-05-13 01:43 – Updated: 2022-05-13 01:43
VLAI
Details

A vulnerability has been identified in the management interface of Citrix NetScaler Application Delivery Controller (ADC) and NetScaler Gateway 10.1 before build 135.18, 10.5 before build 66.9, 10.5e before build 60.7010.e, 11.0 before build 70.16, 11.1 before build 55.13, and 12.0 before build 53.13 (except for build 41.24) that, if exploited, could allow an attacker with access to the NetScaler management interface to gain administrative access to the appliance.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2017-14602"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-287"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2017-09-26T14:29:00Z",
    "severity": "HIGH"
  },
  "details": "A vulnerability has been identified in the management interface of Citrix NetScaler Application Delivery Controller (ADC) and NetScaler Gateway 10.1 before build 135.18, 10.5 before build 66.9, 10.5e before build 60.7010.e, 11.0 before build 70.16, 11.1 before build 55.13, and 12.0 before build 53.13 (except for build 41.24) that, if exploited, could allow an attacker with access to the NetScaler management interface to gain administrative access to the appliance.",
  "id": "GHSA-m34h-9xmf-w4xr",
  "modified": "2022-05-13T01:43:27Z",
  "published": "2022-05-13T01:43:27Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2017-14602"
    },
    {
      "type": "WEB",
      "url": "https://support.citrix.com/article/CTX227928"
    },
    {
      "type": "WEB",
      "url": "https://support.citrix.com/article/CTX228091"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/bid/100980"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-M36H-96HJ-W3J6

Vulnerability from github – Published: 2022-05-01 23:48 – Updated: 2022-05-01 23:48
VLAI
Details

admin.php in Internet Photoshow and Internet Photoshow Special Edition (SE) allows remote attackers to bypass authentication by setting the login_admin cookie to true.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2008-2282"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-287"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2008-05-18T14:20:00Z",
    "severity": "HIGH"
  },
  "details": "admin.php in Internet Photoshow and Internet Photoshow Special Edition (SE) allows remote attackers to bypass authentication by setting the login_admin cookie to true.",
  "id": "GHSA-m36h-96hj-w3j6",
  "modified": "2022-05-01T23:48:40Z",
  "published": "2022-05-01T23:48:40Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2008-2282"
    },
    {
      "type": "WEB",
      "url": "https://exchange.xforce.ibmcloud.com/vulnerabilities/42422"
    },
    {
      "type": "WEB",
      "url": "https://www.exploit-db.com/exploits/5617"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/bid/29227"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

GHSA-M37Q-W59J-4VR4

Vulnerability from github – Published: 2022-03-29 00:01 – Updated: 2022-04-05 00:00
VLAI
Details

An issue has been discovered in GitLab CE/EE affecting versions 13.0 to 14.6.5, 14.7 to 14.7.4, and 14.8 to 14.8.2. Private GitLab instances with restricted sign-ups may be vulnerable to user enumeration to unauthenticated users through the GraphQL API.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2021-4191"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-287"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2022-03-28T19:15:00Z",
    "severity": "MODERATE"
  },
  "details": "An issue has been discovered in GitLab CE/EE affecting versions 13.0 to 14.6.5, 14.7 to 14.7.4, and 14.8 to 14.8.2. Private GitLab instances with restricted sign-ups may be vulnerable to user enumeration to unauthenticated users through the GraphQL API.",
  "id": "GHSA-m37q-w59j-4vr4",
  "modified": "2022-04-05T00:00:49Z",
  "published": "2022-03-29T00:01:10Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-4191"
    },
    {
      "type": "WEB",
      "url": "https://hackerone.com/reports/1089609"
    },
    {
      "type": "WEB",
      "url": "https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-4191.json"
    },
    {
      "type": "WEB",
      "url": "https://gitlab.com/gitlab-org/gitlab/-/issues/343898"
    }
  ],
  "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"
    }
  ]
}

Mitigation
Architecture and Design

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.