Common Weakness Enumeration

CWE-863

Allowed-with-Review

Incorrect Authorization

Abstraction: Class · Status: Incomplete

The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check.

7172 vulnerabilities reference this CWE, most recent first.

GHSA-PHPH-C358-5MWM

Vulnerability from github – Published: 2026-09-15 18:32 – Updated: 2026-10-09 20:51
Withdrawn 2026-10-09 VLAI
Summary
Duplicate Advisory: Vikunja: API token scopes bypassed via task expand parameter (comments, reactions, time entry counts)
Details

Duplicate Advisory

This advisory has been withdrawn because it is a duplicate of GHSA-9rg3-v78m-26q8. This link is maintained to preserve external references.

Original Description

Vikunja before 2.6.0 contains an API token scope bypass vulnerability in task read endpoints where authorization fails to inspect query string parameters. Attackers with limited token scopes can use the expand parameter to access restricted data like comments, reactions, and time entries without proper permission verification.

Show details on source website

{
  "affected": [
    {
      "package": {
        "ecosystem": "Go",
        "name": "code.vikunja.io/api"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "1.0.0"
            },
            {
              "last_affected": "2.5.0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [],
  "database_specific": {
    "cwe_ids": [
      "CWE-863"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-10-09T20:51:46Z",
    "nvd_published_at": "2026-09-15T16:17:55Z",
    "severity": "MODERATE"
  },
  "details": "### Duplicate Advisory\nThis advisory has been withdrawn because it is a duplicate of GHSA-9rg3-v78m-26q8. This link is maintained to preserve external references.\n\n### Original Description\nVikunja before 2.6.0 contains an API token scope bypass vulnerability in task read endpoints where authorization fails to inspect query string parameters. Attackers with limited token scopes can use the expand parameter to access restricted data like comments, reactions, and time entries without proper permission verification.",
  "id": "GHSA-phph-c358-5mwm",
  "modified": "2026-10-09T20:51:46Z",
  "published": "2026-09-15T18:32:30Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/go-vikunja/vikunja/security/advisories/GHSA-9rg3-v78m-26q8"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-91983"
    },
    {
      "type": "WEB",
      "url": "https://www.vulncheck.com/advisories/vikunja-before-2.6.0-api-token-scope-bypass-via-expand-parameter"
    }
  ],
  "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"
    },
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/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"
    }
  ],
  "summary": "Duplicate Advisory: Vikunja: API token scopes bypassed via task expand parameter (comments, reactions, time entry counts)",
  "withdrawn": "2026-10-09T20:51:46Z"
}

GHSA-PHR2-VR74-WHPX

Vulnerability from github – Published: 2026-07-03 00:31 – Updated: 2026-07-03 00:31
VLAI
Details

Incorrect authorization in Microsoft Exchange Online allows an authorized attacker to elevate privileges over a network.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2026-54998"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-863"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-07-02T23:16:51Z",
    "severity": "HIGH"
  },
  "details": "Incorrect authorization in Microsoft Exchange Online allows an authorized attacker to elevate privileges over a network.",
  "id": "GHSA-phr2-vr74-whpx",
  "modified": "2026-07-03T00:31:53Z",
  "published": "2026-07-03T00:31:53Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-54998"
    },
    {
      "type": "WEB",
      "url": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-54998"
    }
  ],
  "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-PJ74-HXF7-XF99

Vulnerability from github – Published: 2023-05-22 00:30 – Updated: 2024-04-04 04:15
VLAI
Details

There is an LDAP bind credentials exposure on KACE Systems Deployment and Remote Site appliances 9.0.146. The captured credentials may provide a higher privilege level on the Active Directory domain. To exploit this, an authenticated attacker edits the user-authentication settings to specify an attacker-controlled LDAP server, clicks the Test Settings button, and captures the cleartext credentials.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2023-33254"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-863"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2023-05-21T22:15:15Z",
    "severity": "MODERATE"
  },
  "details": "There is an LDAP bind credentials exposure on KACE Systems Deployment and Remote Site appliances 9.0.146. The captured credentials may provide a higher privilege level on the Active Directory domain. To exploit this, an authenticated attacker edits the user-authentication settings to specify an attacker-controlled LDAP server, clicks the Test Settings button, and captures the cleartext credentials.",
  "id": "GHSA-pj74-hxf7-xf99",
  "modified": "2024-04-04T04:15:50Z",
  "published": "2023-05-22T00:30:20Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-33254"
    },
    {
      "type": "WEB",
      "url": "https://www.stevencampbell.info/KACE-LDAP-Bind-Credential-Exposure"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-PJ7F-5Q5M-9R38

Vulnerability from github – Published: 2026-10-06 21:31 – Updated: 2026-10-08 18:32
VLAI
Details

Incorrect authorization in PermissionElement in Google Chrome prior to 155.0.8059.39 allowed a remote attacker to potentially bypass web origin policy via a crafted HTML page. (Chromium security severity: Medium)

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2026-106280"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-863"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-10-06T19:17:55Z",
    "severity": "MODERATE"
  },
  "details": "Incorrect authorization in PermissionElement in Google Chrome prior to 155.0.8059.39 allowed a remote attacker to potentially bypass web origin policy via a crafted HTML page. (Chromium security severity: Medium)",
  "id": "GHSA-pj7f-5q5m-9r38",
  "modified": "2026-10-08T18:32:20Z",
  "published": "2026-10-06T21:31:45Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-106280"
    },
    {
      "type": "WEB",
      "url": "https://chromereleases.googleblog.com/2026/10/stable-channel-update-for-desktop_086471744.html"
    },
    {
      "type": "WEB",
      "url": "https://issues.chromium.org/issues/517366426"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-PJ82-H28Q-G9W3

Vulnerability from github – Published: 2026-09-17 21:31 – Updated: 2026-09-18 15:32
VLAI
Details

Incorrect authorization in ORB in Google Chrome prior to 153.0.8010.52 allowed a remote attacker to bypass site isolation via a crafted HTML page. (Chromium security severity: High)

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2026-93379"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-863"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-09-17T21:17:55Z",
    "severity": "MODERATE"
  },
  "details": "Incorrect authorization in ORB in Google Chrome prior to 153.0.8010.52 allowed a remote attacker to bypass site isolation via a crafted HTML page. (Chromium security severity: High)",
  "id": "GHSA-pj82-h28q-g9w3",
  "modified": "2026-09-18T15:32:07Z",
  "published": "2026-09-17T21:31:43Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-93379"
    },
    {
      "type": "WEB",
      "url": "https://chromereleases.googleblog.com/2026/09/stable-channel-update-for-desktop_0194356994.html"
    },
    {
      "type": "WEB",
      "url": "https://issues.chromium.org/issues/560039872"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-PJ96-XH2W-FGQX

Vulnerability from github – Published: 2025-04-25 15:31 – Updated: 2025-05-08 17:15
VLAI
Summary
Moodle has an IDOR in messaging web service which allows access to some user details
Details

A flaw was found in Moodle. Insufficient capability checks in a messaging web service allowed users to view other users' names and online statuses.

Show details on source website

{
  "affected": [
    {
      "package": {
        "ecosystem": "Packagist",
        "name": "moodle/moodle"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "4.1.18"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Packagist",
        "name": "moodle/moodle"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "4.3.0-beta"
            },
            {
              "fixed": "4.3.12"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Packagist",
        "name": "moodle/moodle"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "4.4.0-beta"
            },
            {
              "fixed": "4.4.8"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Packagist",
        "name": "moodle/moodle"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "4.5.0-beta"
            },
            {
              "fixed": "4.5.4"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2025-3645"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-863"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2025-04-25T17:28:36Z",
    "nvd_published_at": "2025-04-25T15:15:38Z",
    "severity": "MODERATE"
  },
  "details": "A flaw was found in Moodle. Insufficient capability checks in a messaging web service allowed users to view other users\u0027 names and online statuses.",
  "id": "GHSA-pj96-xh2w-fgqx",
  "modified": "2025-05-08T17:15:44Z",
  "published": "2025-04-25T15:31:23Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2025-3645"
    },
    {
      "type": "WEB",
      "url": "https://github.com/moodle/moodle/commit/2fd810c8981f9b10087467a3b8fce779b157200f"
    },
    {
      "type": "WEB",
      "url": "https://github.com/moodle/moodle/commit/a8179842b450659c288f284e06361a4fbab8742a"
    },
    {
      "type": "WEB",
      "url": "https://github.com/moodle/moodle/commit/bb65effe41524d8373c1dc499c3323ac469ea558"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/security/cve/CVE-2025-3645"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2359761"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/moodle/moodle"
    },
    {
      "type": "WEB",
      "url": "https://github.com/search?q=repo%3Amoodle%2Fmoodle+MDL-72704\u0026type=commits"
    },
    {
      "type": "WEB",
      "url": "https://moodle.org/mod/forum/discuss.php?d=467606"
    }
  ],
  "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"
    }
  ],
  "summary": "Moodle has an IDOR in messaging web service which allows access to some user details"
}

GHSA-PJ99-JGM5-C727

Vulnerability from github – Published: 2023-10-26 06:30 – Updated: 2024-04-04 08:56
VLAI
Details

The admin panel for Obl.ong before 1.1.2 allows authorization bypass because the email OTP feature accepts arbitrary numerical values.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2023-46754"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-863"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2023-10-26T05:15:26Z",
    "severity": "MODERATE"
  },
  "details": "The admin panel for Obl.ong before 1.1.2 allows authorization bypass because the email OTP feature accepts arbitrary numerical values.",
  "id": "GHSA-pj99-jgm5-c727",
  "modified": "2024-04-04T08:56:40Z",
  "published": "2023-10-26T06:30:25Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2023-46754"
    },
    {
      "type": "WEB",
      "url": "https://github.com/obl-ong/admin/releases/tag/v1.1.2"
    }
  ],
  "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-PJ99-XJ25-M8RW

Vulnerability from github – Published: 2026-09-14 21:31 – Updated: 2026-09-16 15:30
VLAI
Details

An authorization issue was addressed with improved state management. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7. An app may be able to access sensitive user data.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2026-84540"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-863"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-09-14T21:17:30Z",
    "severity": "MODERATE"
  },
  "details": "An authorization issue was addressed with improved state management. This issue is fixed in macOS Golden Gate 27, macOS Sequoia 15.8, macOS Tahoe 26.7. An app may be able to access sensitive user data.",
  "id": "GHSA-pj99-xj25-m8rw",
  "modified": "2026-09-16T15:30:47Z",
  "published": "2026-09-14T21:31:53Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-84540"
    },
    {
      "type": "WEB",
      "url": "https://support.apple.com/en-us/149035"
    },
    {
      "type": "WEB",
      "url": "https://support.apple.com/en-us/149042"
    },
    {
      "type": "WEB",
      "url": "https://support.apple.com/en-us/149043"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    }
  ]
}

GHSA-PJG7-VMGM-6QRP

Vulnerability from github – Published: 2022-05-24 17:07 – Updated: 2022-05-24 17:07
VLAI
Details

In Kronos Web Time and Attendance (webTA) 3.8.x and later 3.x versions before 4.0, the com.threeis.webta.H491delegate servlet allows an attacker with Timekeeper or Supervisor privileges to gain unauthorized administrative privileges within the application via the delegate, delegateRole, and delegatorUserId parameters.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2020-8495"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-863"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2020-01-30T22:15:00Z",
    "severity": "MODERATE"
  },
  "details": "In Kronos Web Time and Attendance (webTA) 3.8.x and later 3.x versions before 4.0, the com.threeis.webta.H491delegate servlet allows an attacker with Timekeeper or Supervisor privileges to gain unauthorized administrative privileges within the application via the delegate, delegateRole, and delegatorUserId parameters.",
  "id": "GHSA-pjg7-vmgm-6qrp",
  "modified": "2022-05-24T17:07:48Z",
  "published": "2022-05-24T17:07:48Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2020-8495"
    },
    {
      "type": "WEB",
      "url": "https://www.kronos.com/products/kronos-webta"
    },
    {
      "type": "WEB",
      "url": "http://packetstormsecurity.com/files/156215/Kronos-WebTA-4.0-Privilege-Escalation-Cross-Site-Scripting.html"
    },
    {
      "type": "WEB",
      "url": "http://www.nolanbkennedy.com/post/privilege-escalation-in-kronos-web-time-and-attendance-webta"
    }
  ],
  "schema_version": "1.4.0",
  "severity": []
}

GHSA-PJG9-QWH6-G7W9

Vulnerability from github – Published: 2024-10-28 21:30 – Updated: 2026-04-02 21:31
VLAI
Details

The issue was addressed with improved checks. This issue is fixed in macOS Ventura 13.7.1, macOS Sonoma 14.7.1. A malicious application may be able to modify protected parts of the file system.

Show details on source website

{
  "affected": [],
  "aliases": [
    "CVE-2024-44247"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-863"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2024-10-28T21:15:06Z",
    "severity": "MODERATE"
  },
  "details": "The issue was addressed with improved checks. This issue is fixed in macOS Ventura 13.7.1, macOS Sonoma 14.7.1. A malicious application may be able to modify protected parts of the file system.",
  "id": "GHSA-pjg9-qwh6-g7w9",
  "modified": "2026-04-02T21:31:59Z",
  "published": "2024-10-28T21:30:35Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-44247"
    },
    {
      "type": "WEB",
      "url": "https://support.apple.com/en-us/121564"
    },
    {
      "type": "WEB",
      "url": "https://support.apple.com/en-us/121568"
    },
    {
      "type": "WEB",
      "url": "https://support.apple.com/en-us/121570"
    },
    {
      "type": "WEB",
      "url": "http://seclists.org/fulldisclosure/2024/Oct/11"
    },
    {
      "type": "WEB",
      "url": "http://seclists.org/fulldisclosure/2024/Oct/12"
    },
    {
      "type": "WEB",
      "url": "http://seclists.org/fulldisclosure/2024/Oct/13"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N",
      "type": "CVSS_V3"
    }
  ]
}

Mitigation
Architecture and Design
  • Divide the product into anonymous, normal, privileged, and administrative areas. Reduce the attack surface by carefully mapping roles with data and functionality. Use role-based access control (RBAC) [REF-229] to enforce the roles at the appropriate boundaries.
  • Note that this approach may not protect against horizontal authorization, i.e., it will not protect a user from attacking others with the same role.
Mitigation
Architecture and Design

Ensure that access control checks are performed related to the business logic. These checks may be different than the access control checks that are applied to more generic resources such as files, connections, processes, memory, and database records. For example, a database may restrict access for medical records to a specific database user, but each record might only be intended to be accessible to the patient and the patient's doctor [REF-7].

Mitigation MIT-4.4
Architecture and Design

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 authorization frameworks such as the JAAS Authorization Framework [REF-233] and the OWASP ESAPI Access Control feature [REF-45].
Mitigation
Architecture and Design
  • For web applications, make sure that the access control mechanism is enforced correctly at the server side on every page. Users should not be able to access any unauthorized functionality or information by simply requesting direct access to that page.
  • One way to do this is to ensure that all pages containing sensitive information are not cached, and that all such pages restrict access to requests that are accompanied by an active and authenticated session token associated with a user who has the required permissions to access that page.
Mitigation
System Configuration Installation

Use the access control capabilities of your operating system and server environment and define your access control lists accordingly. Use a "default deny" policy when defining these ACLs.

No CAPEC attack patterns related to this CWE.