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-2026-27329 (GCVE-0-2026-27329)

Vulnerability from cvelistv5 – Published: 2026-05-07 07:35 – Updated: 2026-05-07 14:16 X_Open Source
VLAI
Title
WordPress YITH WooCommerce Wishlist plugin <= 4.12.0 - Insecure Direct Object References (IDOR) vulnerability
Summary
Authorization Bypass Through User-Controlled Key vulnerability in YITH YITH WooCommerce Wishlist allows Exploiting Incorrectly Configured Access Control Security Levels. This issue affects YITH WooCommerce Wishlist: from n/a through 4.12.0.
Severity
5.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
CWE
  • CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
Impacted products
Vendor Product Version
YITH YITH WooCommerce Wishlist Affected: n/a , ≤ 4.12.0 (custom)
Create a notification for this product.
Credits
PPzzAArr | Patchstack Bug Bounty Program
Show details on NVD website
To clipboard 

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CVE-2026-27397 (GCVE-0-2026-27397)

Vulnerability from cvelistv5 – Published: 2026-03-19 05:30 – Updated: 2026-04-28 16:15
VLAI
Title
WordPress Really Simple Security Pro plugin <= 9.5.4.0 - Insecure Direct Object References (IDOR) vulnerability
Summary
Authorization Bypass Through User-Controlled Key vulnerability in Really Simple Plugins B.V. Really Simple Security Pro allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Really Simple Security Pro: from n/a through 9.5.4.0.
Severity
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
CWE
  • CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
Impacted products
Vendor Product Version
Really Simple Plugins B.V. Really Simple Security Pro Affected: n/a , ≤ 9.5.4.0 (custom)
Create a notification for this product.
Credits
dcodx | Patchstack Bug Bounty Program
Show details on NVD website
To clipboard 

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CVE-2026-27449 (GCVE-0-2026-27449)

Vulnerability from cvelistv5 – Published: 2026-02-26 21:51 – Updated: 2026-03-03 01:40
VLAI
Title
Umbraco.Engage.Forms Allows Unauthorized Access to Multiple API Endpoints
Summary
Umbraco Engage is a business intelligence platform. A vulnerability has been identified in Umbraco Engage prior to versions 16.2.1 and 17.1.1 where certain API endpoints are exposed without enforcing authentication or authorization checks. The affected endpoints can be accessed directly over the network without requiring a valid session or user credentials. By supplying a user-controlled identifier parameter (e.g., ?id=), an attacker can retrieve sensitive data associated with arbitrary records. Because no access control validation is performed, the endpoints are vulnerable to enumeration attacks, allowing attackers to iterate over identifiers and extract data at scale. An unauthenticated attacker can retrieve sensitive Engage-related data by directly querying the affected API endpoints. The vulnerability allows arbitrary record access through predictable or enumerable identifiers. The confidentiality impact is considered high. No direct integrity or availability impact has been identified. The scope of exposed data depends on the deployment but may include analytics data, tracking data, customer-related information, or other Engage-managed content. The vulnerability affects both v16 and v17. Patches have already been released. Users are advised to update to 16.2.1 or 17.1.1. No known workarounds are available.
Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CWE
  • CWE-284 - Improper Access Control
  • CWE-306 - Missing Authentication for Critical Function
  • CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
Impacted products
Vendor Product Version
umbraco Umbraco.Engage.Forms Affected: < 16.2.1
Affected: >= 17.0.0, < 17.1.1
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-27591 (GCVE-0-2026-27591)

Vulnerability from cvelistv5 – Published: 2026-03-11 21:25 – Updated: 2026-03-12 14:23
VLAI
Title
Winter: Privilege escalation by authenticated backend users
Summary
Winter is a free, open-source content management system (CMS) based on the Laravel PHP framework. Prior to 1.0.477, 1.1.12, and 1.2.12, Winter CMS allowed authenticated backend users to escalate their accounts level of access to the system by modifying the roles / permissions assigned to their account through specially crafted requests to the backend while logged in. To actively exploit this security issue, an attacker would need access to the Backend with a user account with any level of access. This vulnerability is fixed in 1.0.477, 1.1.12, and 1.2.12.
Severity
10 (Critical)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
CWE
  • CWE-284 - Improper Access Control
  • CWE-639 - Authorization Bypass Through User-Controlled Key
  • CWE-915 - Improperly Controlled Modification of Dynamically-Determined Object Attributes
Assigner
References
Impacted products
Vendor Product Version
wintercms winter Affected: >= 1.2.0, < 1.2.12
Affected: >= 1.1.0, < 1.1.12
Affected: < 1.0.477
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-27705 (GCVE-0-2026-27705)

Vulnerability from cvelistv5 – Published: 2026-02-25 15:51 – Updated: 2026-02-25 20:10
VLAI
Title
Plane Vulnerable to Cross-Workspace/Cross-Project Asset Modification via IDOR in ProjectAssetEndpoint.patch
Summary
Plane is an an open-source project management tool. Prior to version 1.2.2, the `ProjectAssetEndpoint.patch()` method in `apps/api/plane/app/views/asset/v2.py` (lines 579–593) performs a global asset lookup using only the asset ID (`pk`) via `FileAsset.objects.get(id=pk)`, without verifying that the asset belongs to the workspace and project specified in the URL path. This allows any authenticated user (including those with the GUEST role) to modify the `attributes` and `is_uploaded` status of assets belonging to any workspace or project in the entire Plane instance by guessing or enumerating asset UUIDs. Version 1.2.2 fixes the issue.
Severity
4.9 (Medium)
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:U
CWE
  • CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
Impacted products
Vendor Product Version
makeplane plane Affected: < 1.2.2
Create a notification for this product.
Show details on NVD website
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CVE-2026-27793 (GCVE-0-2026-27793)

Vulnerability from cvelistv5 – Published: 2026-02-27 19:38 – Updated: 2026-03-02 12:51
VLAI
Title
Seerr has Broken Object-Level Authorization in User Profile Endpoint that Exposes Third-Party Notification Credentials
Summary
Seerr is an open-source media request and discovery manager for Jellyfin, Plex, and Emby. Prior to version 3.1.0, the `GET /api/v1/user/:id` endpoint returns the full settings object for any user, including Pushover, Pushbullet, and Telegram credentials, to any authenticated requester regardless of their privilege level. This vulnerability can be exploited alone or combined with the reported unauthenticated account creation vulnerability, CVE-2026-27707. When combined, the two vulnerabilities create a zero-prior-access chain that leaks third-party API credentials for all users, including administrators. Version 3.1.0 contains a fix for both this vulnerability and for CVE-2026-27707.
Severity
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
CWE
  • CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
Impacted products
Vendor Product Version
seerr-team seerr Affected: < 3.1.0
Create a notification for this product.
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CVE-2026-27835 (GCVE-0-2026-27835)

Vulnerability from cvelistv5 – Published: 2026-02-26 22:00 – Updated: 2026-03-03 01:38
VLAI
Title
wger: IDOR in RepetitionsConfig and MaxRepetitionsConfig API leak other users' workout data
Summary
wger is a free, open-source workout and fitness manager. In versions up to and including 2.4, `RepetitionsConfigViewSet` and `MaxRepetitionsConfigViewSet` return all users' repetition config data because their `get_queryset()` calls `.all()` instead of filtering by the authenticated user. Any registered user can enumerate every other user's workout structure. Commit 1fda5690b35706bb137850c8a084ec6a13317b64 contains a fix for the issue.
Severity
4.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
CWE
  • CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
Impacted products
Vendor Product Version
wger-project wger Affected: <= 2.4
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-27838 (GCVE-0-2026-27838)

Vulnerability from cvelistv5 – Published: 2026-02-26 22:04 – Updated: 2026-03-03 01:37
VLAI
Title
wger: IDOR via user-unscoped cache keys on routine API actions exposes workout data
Summary
wger is a free, open-source workout and fitness manager. Five routine detail action endpoints check a cache before calling `self.get_object()`. In versions up to and including 2.4, ache keys are scoped only by `pk` — no user ID is included. When a victim has previously accessed their routine via the API, an attacker can retrieve the cached response for the same PK without any ownership check. Commit e964328784e2ee2830a1991d69fadbce86ac9fbf contains a patch for the issue.
Severity
3.1 (Low)
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
CWE
  • CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
Impacted products
Vendor Product Version
wger-project wger Affected: <= 2.4
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-27839 (GCVE-0-2026-27839)

Vulnerability from cvelistv5 – Published: 2026-02-26 22:07 – Updated: 2026-03-03 01:36
VLAI
Title
wger: IDOR in nutritional_values endpoints exposes private dietary data via direct ORM lookup
Summary
wger is a free, open-source workout and fitness manager. In versions up to and including 2.4, three `nutritional_values` action endpoints fetch objects via `Model.objects.get(pk=pk)` — a raw ORM call that bypasses the user-scoped queryset. Any authenticated user can read another user's private nutrition plan data, including caloric intake and full macro breakdown, by supplying an arbitrary PK. Commit 29876a1954fe959e4b58ef070170e81703dab60e contains a fix for the issue.
Severity
4.3 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
CWE
  • CWE-639 - Authorization Bypass Through User-Controlled Key
Assigner
References
Impacted products
Vendor Product Version
wger-project wger Affected: <= 2.4
Create a notification for this product.
Show details on NVD website
To clipboard 

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CVE-2026-27898 (GCVE-0-2026-27898)

Vulnerability from cvelistv5 – Published: 2026-03-04 21:44 – Updated: 2026-03-05 15:42
VLAI
Title
Vaultwarden: Unauthorized Access via Partial Update API on Another User’s Cipher
Summary
Vaultwarden is an unofficial Bitwarden compatible server written in Rust, formerly known as bitwarden_rs. Prior to version 1.35.4, an authenticated regular user can specify another user’s cipher_id and call "PUT /api/ciphers/{id}/partial" Even though the standard retrieval API correctly denies access to that cipher, the partial update endpoint returns 200 OK and exposes cipherDetails (including name, notes, data, secureNote, etc.). This issue has been patched in version 1.35.4.
Severity
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
References
Impacted products
Vendor Product Version
dani-garcia vaultwarden Affected: < 1.35.4
Create a notification for this product.
Show details on NVD website
To clipboard 

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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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