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.

2790 vulnerabilities reference this CWE, most recent first.

CVE-2026-104875 (GCVE-0-2026-104875)

Vulnerability from cvelistv5 – Published: 2026-10-13 19:10 – Updated: 2026-10-29 14:45
VLAI
Title
Ente: Accepted emergency contact can bypass the recovery notice period
Summary
Ente provides end-to-end encrypted cloud services and security tools. Prior to server image 2026.07.09, the POST /emergency-contacts/approve-recovery endpoint authorized approval using a client-supplied userID and updated an emergency recovery session using only its client-supplied recovery-session UUID. An accepted emergency contact could submit the contact's own identifier, transition the victim's session from WAITING to READY, clear wait_till, retrieve recovery information, and continue account recovery before the owner-configured notice period expired. Exploitation of the approval bypass required the victim to have previously added and accepted the attacker as an emergency contact, and it did not create recovery rights for an arbitrary account. Separately, the same insufficiently scoped update pattern affected the reject and stop recovery transitions, allowing a user who knew another recovery-session UUID to potentially cancel a session to which the user was not a party. This issue is fixed in server image 2026.07.09.
Severity
7.1 (High)
CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:H
SSVC
Exploitation: poc Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-29 14:45 UTC
CWE
  • CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
GitHub_M CNA
References
Impacted products
Show details on NVD website
To clipboard 

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CVE-2026-104867 (GCVE-0-2026-104867)

Vulnerability from cvelistv5 – Published: 2026-11-05 17:03 – Updated: 2026-11-05 18:34
VLAI
Title
Immich calendar heatmap endpoint discloses cross-user activity through broken access control
Summary
Immich is a high-performance self-hosted photo and video management solution. From 3.0.0 until 3.2.0, the GET /api/admin/users/{id}/calendar-heatmap route in server/src/controllers/user-admin.controller.ts uses the ordinary Permission.UserRead permission without an admin-route requirement, and UserAdminService.getCalendarHeatmap in server/src/services/user-admin.service.ts does not compare the authenticated user with the requested user identifier or perform a separate access check. Any authenticated non-admin user can therefore request another account's upload or capture-date activity heatmap for an arbitrary date range. AssetRepository.getCalendarHeatmap in server/src/repositories/asset.repository.ts filters by owner, date, and deletion state but not visibility, so the returned daily counts and total count include archived and locked assets. The route exposes counts and activity dates but does not return asset metadata or content, and it does not affect integrity or availability. This issue is fixed in version 3.2.0.
Severity
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 2026-11-05 18:31 UTC
CWE
  • CWE-284 - Improper Access Control
  • CWE-639 - Authorization Bypass Through User-Controlled Key
  • CWE-1220 - Insufficient Granularity of Access Control
Assigner
GitHub_M CNA
References
Impacted products
Vendor Product Version
immich-app immich Affected: >= 3.0.0, < 3.2.0
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-104449 (GCVE-0-2026-104449)

Vulnerability from cvelistv5 – Published: 2026-10-02 11:38 – Updated: 2026-10-06 16:13
VLAI
Title
YesWiki before 4.6.7 Unauthenticated Page Overwrite via Bazar id_fiche
Summary
YesWiki before 4.6.7 contains an access control vulnerability allowing unauthenticated attackers to overwrite any existing wiki page, including pages whose write ACL restricts editing, via the Bazar entry-creation flow. Attackers can submit a crafted entry with an attacker-controlled id_fiche matching an existing page, overwriting its body for mass defacement and content destruction.
Severity
8.3 (High)
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N
6.5 (Medium)
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:L
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-06 16:13 UTC
CWE
  • CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
VulnCheck CNA
References
Impacted products
Vendor Product Version
YesWiki yeswiki Affected: 0 , < 4.6.7 (semver)
Unaffected: 4.6.7 (semver)
    cpe:2.3:a:yeswiki:yeswiki:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-09-01 00:00
Credits
manus-use
Show details on NVD website
To clipboard 

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CVE-2026-104444 (GCVE-0-2026-104444)

Vulnerability from cvelistv5 – Published: 2026-10-02 11:38 – Updated: 2026-10-02 20:43
VLAI
Title
YesWiki before 4.6.7 Authorization Bypass via Comments API editComment
Summary
YesWiki before 4.6.7 contains an authorization bypass vulnerability in the comments API editComment route that allows authenticated low-privilege users to overwrite arbitrary pages or comments by supplying their own page as the pagetag field. Attackers can send a POST request to the api/comments endpoint targeting a victim tag, bypassing per-page write ACLs to replace content and reparent existing pages or comments.
Severity
7.1 (High)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N
7.1 (High)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-02 20:42 UTC
CWE
  • CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
VulnCheck CNA
References
Impacted products
Vendor Product Version
YesWiki yeswiki Affected: 0 , < 4.6.7 (semver)
Unaffected: 4.6.7 (semver)
    cpe:2.3:a:yeswiki:yeswiki:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-09-01 00:00
Credits
manus-use
Show details on NVD website
To clipboard 

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CVE-2026-104403 (GCVE-0-2026-104403)

Vulnerability from cvelistv5 – Published: 2026-10-02 09:55 – Updated: 2026-10-03 15:12 X_Open Source
VLAI
Title
WordPress LearnPress plugin <= 4.4.9 - Insecure Direct Object References (IDOR) vulnerability
Summary
Authorization Bypass Through User-Controlled Key vulnerability in ThimPress LearnPress allows Exploiting Incorrectly Configured Access Control Security Levels. This issue affects LearnPress: from n/a through 4.4.9.
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 · CISA-ADP (v2.0.3)
Decision recorded 2026-10-03 15:10 UTC
CWE
  • CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
Impacted products
Vendor Product Version
ThimPress LearnPress Affected: n/a , ≤ 4.4.9 (custom)
Create a notification for this product.
Credits
Ananda Dhakal | Patchstack
Show details on NVD website
To clipboard 

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CVE-2026-103988 (GCVE-0-2026-103988)

Vulnerability from cvelistv5 – Published: 2026-10-14 20:35 – Updated: 2026-10-15 15:07
VLAI
Title
FileRise renameFolder omits destination-parent authorization
Summary
FileRise is a self-hosted web-based file manager with multi-file upload, editing, and batch operations. Prior to 3.23.0, FileRise /api/folder/renameFolder.php authorizes an authenticated, non-folder-scoped, non-administrator with a valid CSRF token against the source folder but does not independently authorize a changed destination parent. A qualifying user who owns a source folder can move that tree beneath another user's existing folder or into the root namespace, and the operation rekeys the moved ownership and ACL records to the new path. The destination must be unused and existing victim files cannot be overwritten. Distinct pre-fix errors reveal whether a specifically guessed destination path exists, but disclose no directory listing or file contents. This issue is fixed in version 3.23.0.
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: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-15 15:07 UTC
CWE
  • CWE-284 - Improper Access Control
  • CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
GitHub_M CNA
References
Impacted products
Vendor Product Version
error311 FileRise Affected: < 3.23.0
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-103525 (GCVE-0-2026-103525)

Vulnerability from cvelistv5 – Published: 2026-10-16 04:27 – Updated: 2026-10-16 15:09
VLAI
Title
FluentCart A New Era of eCommerce <= 1.7.0 - Insecure Direct Object Reference to Unauthenticated Sensitive Information Disclosure via 'order_id' and 'billing_address_id' Parameters
Summary
The FluentCart A New Era of eCommerce – Faster, Lighter, and Simpler plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 1.7.0 via the 'order_id + billing_address_id (also shipping_address_id)' parameter due to missing validation on a user controlled key. This makes it possible for unauthenticated attackers to read and exfiltrate another customer's stored billing and shipping address PII — including street address, city, state, postcode, phone number, company name, VAT number, and legal registration ID — by enumerating sequential AUTO_INCREMENT order and address ID pairs. The id-equality guard intended to restrict address reuse is bypassed because the attacker controls both halves of the compared pair, and the unauthenticated AJAX entry point imposes only a soft rate limit of 5 requests per 60 seconds rather than any authentication or ownership check.
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 · CISA-ADP (v2.0.3)
Decision recorded 2026-10-16 14:51 UTC
CWE
  • CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
Wordfence CNA
References
Impacted products
Credits
Wordfence PRISM
Show details on NVD website
To clipboard 

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CVE-2026-103476 (GCVE-0-2026-103476)

Vulnerability from cvelistv5 – Published: 2026-09-30 17:22 – Updated: 2026-10-01 15:34
VLAI
Title
yii2-starter-kit through 4.2.0 Unauthorized File Download via attachment-download
Summary
yii2-starter-kit through 4.2.0 fails to validate article publication status in the attachment-download endpoint, allowing unauthenticated attackers to download files from draft articles. Attackers can enumerate sequential attachment identifiers to retrieve files from unpublished articles without authentication or authorization checks.
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 2026-10-01 15:33 UTC
CWE
  • CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
VulnCheck CNA
References
Impacted products
Vendor Product Version
yii2-starter-kit yii2-starter-kit Affected: 0 , ≤ 4.2.0 (custom)
Create a notification for this product.
Date Public
2026-09-30 00:00
Credits
Vikash Gupta
Show details on NVD website
To clipboard 

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CVE-2026-103446 (GCVE-0-2026-103446)

Vulnerability from cvelistv5 – Published: 2026-09-30 17:13 – Updated: 2026-10-06 18:25
VLAI
Title
WikiLambda exposes anonymous execution of unsaved Abstract Wikipedia fragments
Summary
Authorization bypass through User-Controlled key vulnerability in The Wikimedia Foundation MediaWiki WikiLambda extension allows Authentication Bypass. This issue affects MediaWiki WikiLambda extension: 1.46.
Severity
7.4 (High)
CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:P/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:P/S:N/AU:Y/R:U/V:C/RE:M/U:Amber
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-10-06 18:25 UTC
CWE
  • CWE-639 - Authorization bypass through User-Controlled key
Assigner
References
Impacted products
Credits
Marco Paciaroni (BomboBombone)
Show details on NVD website
To clipboard 

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CVE-2026-103366 (GCVE-0-2026-103366)

Vulnerability from cvelistv5 – Published: 2026-10-14 07:43 – Updated: 2026-10-15 16:43
VLAI
Title
Appointment Booking Plugin <= 5.7.3 - Insecure Direct Object Reference to Unauthenticated Sensitive Information Disclosure via 'booking[id]' and 'cart[id]' Parameters
Summary
The Appointment Booking Plugin – LatePoint | Calendar & Scheduling for WordPress plugin for WordPress is vulnerable to Insecure Direct Object Reference in versions up to, and including, 5.7.3 via the `booking[id]` and `cart[id]` parameters on the `steps__reload_booking_form_summary_panel` and `steps__start` public routes (reachable through wp_ajax_nopriv_latepoint_route_call). This is due to `OsStepsHelper::set_required_objects()` feeding raw request parameters into `set_booking_object()` and `set_cart_object()`, which call `OsModel::set_data()` and load an arbitrary booking or cart row by primary key with no ownership check — the ownership guard the vendor added for the earlier disclosure lives only inside `OsStepsHelper::load_step()` and does not cover the sibling routes or `cart[id]` at all. This makes it possible for unauthenticated attackers to enumerate sequential booking / cart identifiers and read other customers' appointment details (service name, agent, date/time, duration, price breakdown, status) and other shoppers' pending checkout contents directly from the JSON responses.
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 · CISA-ADP (v2.0.3)
Decision recorded 2026-10-15 10:47 UTC
CWE
  • CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
Wordfence CNA
References
Impacted products
Credits
churchill11
Show details on NVD website
To clipboard 

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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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