Common Weakness Enumeration

CWE-639

Authorization Bypass Through User-Controlled Key

The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data.

CVE-2026-24634 (GCVE-0-2026-24634)

Vulnerability from cvelistv5 – Published: 2026-01-23 14:29 – Updated: 2026-04-28 16:14
VLAI
Title
WordPress Ultimate Reviews plugin <= 3.2.16 - Insecure Direct Object References (IDOR) vulnerability
Summary
Authorization Bypass Through User-Controlled Key vulnerability in Rustaurius Ultimate Reviews ultimate-reviews allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Ultimate Reviews: from n/a through <= 3.2.16.
Severity
5.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
Impacted products
Vendor Product Version
Rustaurius Ultimate Reviews Affected: 0 , ≤ 3.2.16 (custom)
Create a notification for this product.
Date Public
2026-04-01 16:04
Credits
Doan Dinh Van | Patchstack Bug Bounty Program
Show details on NVD website
To clipboard 

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CVE-2026-24753 (GCVE-0-2026-24753)

Vulnerability from cvelistv5 – Published: 2026-06-01 21:45 – Updated: 2026-06-02 12:29
VLAI
Title
Kiteworks Secure Data Forms is vulnerable to Authorization Bypass Through User-Controlled Key
Summary
Kiteworks is a private data network (PDN). Prior to version 9.3.0, an Insecure Direct Object Reference (IDOR) vulnerability in Kiteworks Secure Data Forms allows an authenticated user to modify resources belonging to other users due to insufficient authorization checks on resource ownership. Upgrade Kiteworks to version 9.3.0 or later to receive a patch.
Severity
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
Impacted products
Show details on NVD website
To clipboard 

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CVE-2026-24755 (GCVE-0-2026-24755)

Vulnerability from cvelistv5 – Published: 2026-06-01 21:49 – Updated: 2026-06-02 15:51
VLAI
Title
Kiteworks Secure Data Forms is vulnerable to Authorization Bypass Through User-Controlled Key
Summary
Kiteworks is a private data network (PDN). Prior to version 9.3.0, an Insecure Direct Object Reference (IDOR) vulnerability in Kiteworks Secure Data Forms allows an authenticated user to modify permissions on resources belonging to other users due to insufficient authorization checks on resource ownership. Upgrade Kiteworks to version 9.3.0 or later to receive a patch.
Severity
5.4 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
Impacted products
Show details on NVD website
To clipboard 

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CVE-2026-24756 (GCVE-0-2026-24756)

Vulnerability from cvelistv5 – Published: 2026-06-01 21:51 – Updated: 2026-06-02 12:30
VLAI
Title
Kiteworks Secure Data Forms is vulnerable to Authorization Bypass Through User-Controlled Key
Summary
Kiteworks is a private data network (PDN). Prior to version 9.3.0, an Insecure Direct Object Reference (IDOR) vulnerability in Kiteworks Secure Data Forms allows an authenticated user to modify resources belonging to other users due to insufficient authorization checks on resource ownership. Upgrade Kiteworks to version 9.3.0 or later to receive a patch.
Severity
4.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
Impacted products
Show details on NVD website
To clipboard 

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CVE-2026-24761 (GCVE-0-2026-24761)

Vulnerability from cvelistv5 – Published: 2026-06-01 21:52 – Updated: 2026-06-02 13:02
VLAI
Title
Kiteworks Secure Data Forms is vulnerable to Authorization Bypass Through User-Controlled Key
Summary
Kiteworks is a private data network (PDN). Prior to version 9.3.0, an Insecure Direct Object Reference (IDOR) vulnerability in Kiteworks Secure Data Forms allows an authenticated user to access metadata of resources belonging to other users due to insufficient authorization checks on resource ownership. Upgrade Kiteworks to version 9.3.0 or later to receive a patch.
Severity
3.7 (Low)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
Impacted products
Show details on NVD website
To clipboard 

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CVE-2026-24773 (GCVE-0-2026-24773)

Vulnerability from cvelistv5 – Published: 2026-02-03 16:57 – Updated: 2026-02-04 16:52
VLAI
Title
Open eClass Unauthenticated IDOR Allows Access to Arbitrary User Files
Summary
The Open eClass platform (formerly known as GUnet eClass) is a complete course management system. Prior to version 4.2, an Insecure Direct Object Reference (IDOR) vulnerability allows unauthenticated remote attackers to access personal files of other users by directly requesting predictable user identifiers. This issue has been patched in version 4.2.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
Impacted products
Vendor Product Version
gunet openeclass Affected: < 4.2
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CVE-2026-24776 (GCVE-0-2026-24776)

Vulnerability from cvelistv5 – Published: 2026-02-06 17:56 – Updated: 2026-02-06 18:37
VLAI
Title
OpenProject has an IDOR on MeetingAgendaItems allows cross-project meeting agenda item transfer
Summary
OpenProject is an open-source, web-based project management software. Prior to 17.0.2, the drag&drop handler moving an agenda item to a different section was not properly checking if the target meeting section is part of the same meeting (or is the backlog, in case of recurring meetings). This allowed an attacker to move a meeting agenda item into a different meeting. The attacker did not get access to meetings, but they could add arbitrary agenda items, that could cause confusions. The vulnerability is fixed in 17.0.2.
Severity
4.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
Impacted products
Vendor Product Version
opf openproject Affected: < 17.0.2
Create a notification for this product.
Show details on NVD website
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CVE-2026-24900 (GCVE-0-2026-24900)

Vulnerability from cvelistv5 – Published: 2026-02-09 18:39 – Updated: 2026-02-10 16:01
VLAI
Title
MarkUs has a submission-view IDOR exposes all student submissions
Summary
MarkUs is a web application for the submission and grading of student assignments. Prior to 2.9.1, the courses/<:course_id>/assignments/<:assignment_id>/submissions/html_content accepted a select_file_id parameter to serve SubmissionFile objects containing a record of files submitted by students. This parameter was not correctly scoped to the requesting user, allowing users access arbitrary submission file contents by id. This vulnerability is fixed in 2.9.1.
Severity
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
Impacted products
Vendor Product Version
MarkUsProject Markus Affected: < 2.9.1
Create a notification for this product.
Show details on NVD website
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CVE-2026-24901 (GCVE-0-2026-24901)

Vulnerability from cvelistv5 – Published: 2026-03-17 15:28 – Updated: 2026-03-17 15:46
VLAI
Title
Outline's IDOR allows unauthorized viewing and seizing of private deleted drafts
Summary
Outline is a service that allows for collaborative documentation. Prior to 1.4.0, an Insecure Direct Object Reference (IDOR) vulnerability in the document restoration logic allows any team member to unauthorizedly restore, view, and seize ownership of deleted drafts belonging to other users, including administrators. By bypassing ownership validation during the restore process, an attacker can access sensitive private information and effectively lock the original owner out of their own content. Version 1.4.0 fixes the issue.
Severity
8.1 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
SSVC
Exploitation: poc Automatable: no Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
  • CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
Impacted products
Vendor Product Version
outline outline Affected: < 1.4.0
Create a notification for this product.
Show details on NVD website
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CVE-2026-24950 (GCVE-0-2026-24950)

Vulnerability from cvelistv5 – Published: 2026-02-20 15:47 – Updated: 2026-04-28 16:14
VLAI
Title
WordPress Authorsy plugin <= 1.0.6 - Insecure Direct Object References (IDOR) vulnerability
Summary
Authorization Bypass Through User-Controlled Key vulnerability in themeplugs Authorsy authorsy allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Authorsy: from n/a through <= 1.0.6.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator (v2.0.3)
CWE
  • CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
Impacted products
Vendor Product Version
themeplugs Authorsy Affected: 0 , ≤ 1.0.6 (custom)
Create a notification for this product.
Date Public
2026-04-01 16:04
Credits
NumeX | Patchstack Bug Bounty Program
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                  "status": "unaffected"
                }
              ],
              "lessThanOrEqual": "1.0.6",
              "status": "affected",
              "version": "0",
              "versionType": "custom"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "finder",
          "value": "NumeX | Patchstack Bug Bounty Program"
        }
      ],
      "datePublic": "2026-04-01T16:04:55.944Z",
      "descriptions": [
        {
          "lang": "en",
          "supportingMedia": [
            {
              "base64": false,
              "type": "text/html",
              "value": "Authorization Bypass Through User-Controlled Key vulnerability in themeplugs Authorsy authorsy allows Exploiting Incorrectly Configured Access Control Security Levels.\u003cp\u003eThis issue affects Authorsy: from n/a through \u003c= 1.0.6.\u003c/p\u003e"
            }
          ],
          "value": "Authorization Bypass Through User-Controlled Key vulnerability in themeplugs Authorsy authorsy allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Authorsy: from n/a through \u003c= 1.0.6."
        }
      ],
      "impacts": [
        {
          "capecId": "CAPEC-180",
          "descriptions": [
            {
              "lang": "en",
              "value": "Exploiting Incorrectly Configured Access Control Security Levels"
            }
          ]
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
            "version": "3.1"
          },
          "format": "CVSS",
          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
          ]
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-639",
              "description": "Authorization Bypass Through User-Controlled Key",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-04-28T16:14:51.219Z",
        "orgId": "21595511-bba5-4825-b968-b78d1f9984a3",
        "shortName": "Patchstack"
      },
      "references": [
        {
          "tags": [
            "vdb-entry"
          ],
          "url": "https://patchstack.com/database/Wordpress/Plugin/authorsy/vulnerability/wordpress-authorsy-plugin-1-0-6-insecure-direct-object-references-idor-vulnerability?_s_id=cve"
        }
      ],
      "title": "WordPress Authorsy plugin \u003c= 1.0.6 - Insecure Direct Object References (IDOR) vulnerability"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "21595511-bba5-4825-b968-b78d1f9984a3",
    "assignerShortName": "Patchstack",
    "cveId": "CVE-2026-24950",
    "datePublished": "2026-02-20T15:47:08.471Z",
    "dateReserved": "2026-01-28T09:50:29.517Z",
    "dateUpdated": "2026-04-28T16:14:51.219Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}
Mitigation

Phase: Architecture and Design

Description:

  • For each and every data access, ensure that the user has sufficient privilege to access the record that is being requested.
Mitigation

Phases: Architecture and Design, Implementation

Description:

  • Make sure that the key that is used in the lookup of a specific user's record is not controllable externally by the user or that any tampering can be detected.
Mitigation

Phase: Architecture and Design

Description:

  • Use encryption in order to make it more difficult to guess other legitimate values of the key or associate a digital signature with the key so that the server can verify that there has been no tampering.

No CAPEC attack patterns related to this CWE.

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