Common Weakness Enumeration

CWE-639

Allowed

Authorization Bypass Through User-Controlled Key

Abstraction: Base · Status: Incomplete

API response cwe.mitre.org

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.

5165 vulnerabilities reference this CWE, most recent first.

CVE-2026-111902 (GCVE-0-2026-111902)

Vulnerability from cvelistv5 – Published: 2026-10-17 18:46 – Updated: 2026-10-19 16:39
VLAI
Title
phpMyFAQ 4.2.0-alpha before 4.2.0-beta Authorization Bypass via Comments and Attachments API
Summary
phpMyFAQ 4.2.0-alpha before 4.2.0-beta contains an authorization bypass vulnerability in isFaqAccessibleForUser() that treats a missing FAQ translation as visible to unauthenticated users. Attackers can send a mismatched Accept-Language header to the comments and attachments API endpoints to read comments and attachment listings of unpublished or ACL-restricted FAQs.
Severity
6.9 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
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 · CISA-ADP (v2.0.3)
Decision recorded 2026-10-19 15:42 UTC
CWE
  • CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
VulnCheck CNA under the mitre root
CNA scorecard B 84/100 over 6487 records in the last 180 days details
References
Impacted products
Vendor Product Version
thorsten phpMyFAQ Affected: 4.2.0-alpha , < 4.2.0-beta (semver)
Unaffected: 4.2.0-beta (semver)
    cpe:2.3:a:phpmyfaq:phpmyfaq:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-10-03 00:00
Credits
santhreal
Show details on NVD website
To clipboard 

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CVE-2026-111722 (GCVE-0-2026-111722)

Vulnerability from cvelistv5 – Published: 2026-10-16 17:40 – Updated: 2026-10-16 18:17
VLAI
Title
LingGuo-Drama through commit 8a6924a IDOR via /admin/v1/projects/:id API
Summary
LingGuo-Drama through commit 8a6924a contains an insecure direct object reference vulnerability that allows registered users to access other users' projects because projects.Get lacks an owner check. Self-registered attackers can iterate numeric IDs via GET, PUT and DELETE /admin/v1/projects/:id to read, overwrite, reassign or delete any user's short-drama projects.
Severity
8.6 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
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 · CISA-ADP (v2.0.3)
Decision recorded 2026-10-16 18:15 UTC
CWE
  • CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
VulnCheck CNA under the mitre root
CNA scorecard B 84/100 over 6487 records in the last 180 days details
References
Impacted products
Vendor Product Version
LingGuoAI LingGuo-Drama Affected: 0 , ≤ 8a6924adf8142678919b4d9a08b9d60c49dcfbed (git)
Create a notification for this product.
Date Public
2026-10-15 00:00
Credits
hieuPenguinnn
Show details on NVD website
To clipboard 

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CVE-2026-111721 (GCVE-0-2026-111721)

Vulnerability from cvelistv5 – Published: 2026-10-16 17:40 – Updated: 2026-10-16 21:16
VLAI
Title
Open WES through 1.0.0 Broken Access Control via GlobalGatewayFilter Warehouse Scoping
Summary
Open WES through 1.0.0 contains an authorization bypass vulnerability that allows authenticated users to modify other warehouses' stock records because GlobalGatewayFilter never enforces auth_warehouse scoping. Attackers holding the menu permission can enumerate sequential IDs on freezeContainerStock and unfreezeContainerStock endpoints to freeze or unfreeze container stock in other warehouses.
Severity
5.3 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N
5.4 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-16 19:34 UTC
CWE
  • CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
VulnCheck CNA under the mitre root
CNA scorecard B 84/100 over 6487 records in the last 180 days details
References
Impacted products
Vendor Product Version
jingsewu open-wes Affected: 0 , ≤ 1.0.0 (custom)
Create a notification for this product.
Date Public
2026-10-15 00:00
Credits
hieuPenguinnn
Show details on NVD website
To clipboard 

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CVE-2026-111717 (GCVE-0-2026-111717)

Vulnerability from cvelistv5 – Published: 2026-10-16 17:40 – Updated: 2026-10-16 18:18
VLAI
Title
Arkon through 0.9.2 Missing Authorization via Skills Versions API
Summary
Arkon through 0.9.2 contains a missing authorization vulnerability in list_skill_versions that allows authenticated employees to read other departments' skill version metadata by bypassing the can_access_skill check. Attackers holding the default skill:read permission can request GET /api/skills/{slug}/versions for another department's skill to obtain version numbers, hashes, storage paths and changelogs.
Severity
5.3 (Medium)
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
4.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-16 18:17 UTC
CWE
  • CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
VulnCheck CNA under the mitre root
CNA scorecard B 84/100 over 6487 records in the last 180 days details
References
Impacted products
Vendor Product Version
nduckmink arkon Affected: 0 , ≤ 0.9.2 (custom)
Create a notification for this product.
Date Public
2026-10-15 00:00
Credits
hieuPenguinnn
Show details on NVD website
To clipboard 

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CVE-2026-111716 (GCVE-0-2026-111716)

Vulnerability from cvelistv5 – Published: 2026-10-16 17:40 – Updated: 2026-10-16 21:16
VLAI
Title
Arkon through 0.9.2 Broken Access Control via Sources By-ID Routes
Summary
Arkon through 0.9.2 contains a broken access control vulnerability that allows authenticated employees to read and modify other departments' sources because by-id routes in app/routers/sources.py skip can_access_document. Attackers can call the plan, progress, PATCH, retry and approve-extraction routes with foreign source IDs to disclose derived wiki titles and summaries and alter ingestion state.
Severity
5.3 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
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 · CISA-ADP (v2.0.3)
Decision recorded 2026-10-16 19:34 UTC
CWE
  • CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
VulnCheck CNA under the mitre root
CNA scorecard B 84/100 over 6487 records in the last 180 days details
References
Impacted products
Vendor Product Version
nduckmink arkon Affected: 0 , ≤ 0.9.2 (custom)
Create a notification for this product.
Date Public
2026-10-15 00:00
Credits
hieuPenguinnn
Show details on NVD website
To clipboard 

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CVE-2026-111715 (GCVE-0-2026-111715)

Vulnerability from cvelistv5 – Published: 2026-10-16 17:40 – Updated: 2026-10-19 14:08
VLAI
Title
Arkon through 0.9.2 Missing Authorization via Wiki Graph Neighborhood API
Summary
Arkon through 0.9.2 contains a missing authorization vulnerability in GET /api/wiki/graph that lets authenticated employees read other departments' wiki metadata by supplying a foreign slug. Attackers with only wiki:read:own_dept permission can query get_neighborhood() without scope checks to obtain page slugs, titles, types and link edges up to depth 3.
Severity
5.3 (Medium)
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
4.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-19 14:06 UTC
CWE
  • CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
VulnCheck CNA under the mitre root
CNA scorecard B 84/100 over 6487 records in the last 180 days details
References
Impacted products
Vendor Product Version
nduckmink arkon Affected: 0 , ≤ 0.9.2 (custom)
Create a notification for this product.
Date Public
2026-10-15 00:00
Credits
hieuPenguinnn
Show details on NVD website
To clipboard 

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CVE-2026-111709 (GCVE-0-2026-111709)

Vulnerability from cvelistv5 – Published: 2026-10-16 17:39 – Updated: 2026-10-16 17:39
VLAI
Title
WhaTicket Community through commit cf04795 IDOR via /tickets/:ticketId and /messages/:ticketId
Summary
WhaTicket Community through commit cf04795 contains an insecure direct object reference vulnerability that allows authenticated agents to access other agents' tickets because ShowTicketService performs no ownership or queue checks. Attackers can supply another agent's ticket id to GET /tickets/:ticketId and /messages/:ticketId to read full message history and POST WhatsApp replies.
Severity
5.3 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
5.4 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
CWE
  • CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
VulnCheck CNA under the mitre root
CNA scorecard B 84/100 over 6487 records in the last 180 days details
References
Impacted products
Vendor Product Version
canove whaticket-community Affected: 0 , ≤ cf047955a6f0d07002ed89c67d765c28d06f8d52 (git)
Create a notification for this product.
Date Public
2026-10-15 00:00
Credits
hieuPenguinnn
Show details on NVD website
To clipboard 

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CVE-2026-111707 (GCVE-0-2026-111707)

Vulnerability from cvelistv5 – Published: 2026-10-16 17:39 – Updated: 2026-10-16 18:20
VLAI
Title
99AI through 4.3.0 IDOR via /api/chatLog/querySingleChat Chat Message Disclosure
Summary
99AI through 4.3.0 contains an insecure direct object reference vulnerability that allows unauthenticated attackers to read other users' chat messages because querySingleChat lacks an owner check. Attackers can send a fingerprint header to obtain a visitor JWT and iterate sequential chatId values to retrieve other users' message content and task data.
Severity
6.9 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
5.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
SSVC
Exploitation: poc Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-16 18:19 UTC
CWE
  • CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
VulnCheck CNA under the mitre root
CNA scorecard B 84/100 over 6487 records in the last 180 days details
References
Impacted products
Vendor Product Version
vastxie 99AI Affected: 0 , ≤ 4.3.0 (custom)
Create a notification for this product.
Date Public
2026-10-16 00:00
Credits
hieuPenguinnn
Show details on NVD website
To clipboard 

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CVE-2026-111705 (GCVE-0-2026-111705)

Vulnerability from cvelistv5 – Published: 2026-10-16 17:39 – Updated: 2026-10-19 13:43
VLAI
Title
Fuint through commit 57ec018 IDOR via bookId in myBookDetail
Summary
Fuint through commit 57ec018 contains an insecure direct object reference vulnerability that allows authenticated members to read other members' booking records by supplying arbitrary bookId values to /clientApi/book/myBookDetail. Attackers can iterate the auto-increment bookId to retrieve contact names, mobile numbers, in-store verification codes, service dates, stores and remarks.
Severity
5.3 (Medium)
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
4.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-19 13:42 UTC
CWE
  • CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
VulnCheck CNA under the mitre root
CNA scorecard B 84/100 over 6487 records in the last 180 days details
References
Impacted products
Vendor Product Version
fushengqian fuint Affected: 0 , ≤ 57ec01895e22dd93f16f493db30a77a7c1b148f2 (git)
Create a notification for this product.
Date Public
2026-10-15 00:00
Credits
hieuPenguinnn
Show details on NVD website
To clipboard 

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CVE-2026-111703 (GCVE-0-2026-111703)

Vulnerability from cvelistv5 – Published: 2026-10-16 17:39 – Updated: 2026-10-16 19:51
VLAI
Title
yshop-crm through 2.1.3 IDOR via CRM customer by-id endpoints
Summary
yshop-crm through 2.1.3 contains an insecure direct object reference vulnerability that allows authenticated sales users to access other users' customer records by supplying arbitrary ids. Attackers can enumerate ids against the get, update, delete and do-open endpoints to read contact details, overwrite or delete customers, or release them into the public pool.
Severity
5.3 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N
6.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-16 19:50 UTC
CWE
  • CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
VulnCheck CNA under the mitre root
CNA scorecard B 84/100 over 6487 records in the last 180 days details
References
Impacted products
Vendor Product Version
guchengwuyue yshop-crm Affected: 0 , ≤ 2.1.3 (custom)
Create a notification for this product.
Date Public
2026-10-15 00:00
Credits
hieuPenguinnn
Show details on NVD website
To clipboard 

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            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L",
            "version": "3.1"
          },
          "format": "CVSS"
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-639",
              "description": "Authorization Bypass Through User-Controlled Key",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-16T17:39:55.802Z",
        "orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
        "shortName": "VulnCheck"
      },
      "references": [
        {
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://hackmd.io/@hieuPenguinnn/yshop-crm-customer-idor-and-missing-authz"
        },
        {
          "tags": [
            "technical-description"
          ],
          "url": "https://github.com/guchengwuyue/yshop-crm/blob/a93846584877ed5f6ffcaeeb7182d1707a21a221/yshop-crm/yshop-module-crm/yshop-module-crm-biz/src/main/java/co/yixiang/yshop/module/crm/service/crmcustomer/CrmCustomerServiceImpl.java#L105-L203"
        },
        {
          "tags": [
            "technical-description"
          ],
          "url": "https://github.com/guchengwuyue/yshop-crm/blob/a93846584877ed5f6ffcaeeb7182d1707a21a221/yshop-crm/yshop-module-crm/yshop-module-crm-biz/src/main/java/co/yixiang/yshop/module/crm/controller/admin/crmcustomer/CrmCustomerController.java#L46-L87"
        },
        {
          "name": "VulnCheck Advisory: yshop-crm through 2.1.3 IDOR via CRM customer by-id endpoints",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://www.vulncheck.com/advisories/yshop-crm-through-2.1.3-idor-via-crm-customer-by-id-endpoints"
        }
      ],
      "title": "yshop-crm through 2.1.3 IDOR via CRM customer by-id endpoints",
      "x_generator": {
        "engine": "vulncheck-endgame"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10",
    "assignerShortName": "VulnCheck",
    "cveId": "CVE-2026-111703",
    "datePublished": "2026-10-16T17:39:55.802Z",
    "dateReserved": "2026-10-16T14:31:22.126Z",
    "dateUpdated": "2026-10-16T19:51:05.638Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}
Mitigation
Architecture and Design

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

Mitigation
Architecture and Design Implementation

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
Architecture and Design

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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