Weakness (CWE)
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.
More detail
It is likely that an attacker would have to be an authenticated user in the system. However, the authorization process would not properly check the data access operation to ensure that the authenticated user performing the operation has sufficient entitlements to perform the requested data access, hence bypassing any other authorization checks present in the system.
For example, attackers can look at places where user specific data is retrieved (e.g. search screens) and determine whether the key for the item being looked up is controllable externally. The key may be a hidden field in the HTML form field, might be passed as a URL parameter or as an unencrypted cookie variable, then in each of these cases it will be possible to tamper with the key value.
How to prevent it (3 mitigations)
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Architecture and Design
For each and every data access, ensure that the user has sufficient privilege to access the record that is being requested.
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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.
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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.
Source: MITRE CWE-639
3,334 results · Feed
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Medium 6.5
Plane: Cross-Tenant Cycle Issue Hijack via IDOR
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Medium 5.4
Plane: Cross-workspace association destruction and issue mutation/read via unscoped queries in BulkDeleteIssuesEndpoint and SubIssuesEndpoint
Plane is an open-source project management tool. Prior to 1.4.0, BulkDeleteIssuesEndpoint and SubIssuesEndpoint in apps/api/plane/app/views/issue/ accept body- or URL-supplied issue IDs and operate on them without checking that the IDs belong to the caller's …
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High 8.7
Plane: Cross-Workspace IDOR in Estimate and Comment Endpoints Allows Read, Modify, and Inject Across Workspaces
Plane is an open-source project management tool. Prior to 1.4.0, two endpoint families fail to verify that nested resource identifiers belong to the workspace and project named in the URL. An authenticated user can read or modify estimates from another worksp…
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Medium 5.4
Plane: Cross-Tenant Issue Relation Creation via IDOR
Plane is an open-source project management tool. Prior to 1.4.0, the issue-relation endpoint accepts issue UUIDs in the request body without validating that they belong to the caller's workspace. An authenticated user can create relations linking their own is…
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Medium 6.8
Plane: Cross-Workspace Project Modification via Unscoped Project Lookup
Plane is an open-source project management tool. Prior to 1.4.0, Plane's project update endpoint authorizes the caller against the workspace slug in the request URL but loads the target project globally by UUID without binding it to that workspace. An adminis…
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Medium 4.9
WatchEvent API streams another organization's live events
Velociraptor's WatchEvent gRPC API can specify the OrgId of the org from which events should be streamed. The server checks the API permissions against the caller's Org instead of the requested Org. This allows a user with API access in one org to read events…
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Medium 6.5
Plane: Authorization bypass in workspace-scoped asset download endpoint exposes secret project file assets to non-project workspace users
Plane is an open-source project management tool. Prior to 1.4.0, Plane exposes the workspace-scoped GET /api/assets/v2/workspaces/{workspace_slug}/download/{asset_id}/ endpoint for project-bound FileAsset objects without enforcing access to the asset's owning…
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Medium 4.3
Plane: Cross-Tenant Module Issue Linking via IDOR
Plane is an open-source project management tool. Prior to 1.4.0, the modules endpoint accepts issue UUIDs in the URL path without validating that they belong to the caller's workspace. An authenticated user can link issues from any workspace to modules in the…
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High 8.7
Joomla Extension - phoca.cz - Authorisation bypass through user-controlled key (IDOR) in Order View in Phoca Cart 5.0.0 - 6.1.8
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Medium 5.4
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Authorization Bypass Through User-Controlled Key vulnerability in Ahmad JS Help Desk js-support-ticket allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects JS Help Desk: from n/a through 4.0.0.
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Medium 4.3
WordPress JS Help Desk plugin <= 4.0.0 - Insecure Direct Object References (IDOR) vulnerability
Authorization Bypass Through User-Controlled Key vulnerability in Ahmad JS Help Desk js-support-ticket allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects JS Help Desk: from n/a through 4.0.0.
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Medium 5.3
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Medium 5.9
File Uploads Addon for WooCommerce 1.7.2 - 1.7.5 - Unauthenticated Customer Uploaded File Disclosure
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Medium 6.3
kishor-23 food-waste-management-system Role Attribute admin.php authorization
A security vulnerability has been detected in kishor-23 food-waste-management-system 411989e3ecb82895e53dca7865f72145f03d7d93/b3a70b2c492dc9904de5be1ad9389bd79b87f82c. Affected by this vulnerability is an unknown functionality of the file admin/admin.php of t…
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Medium 5.3
Razorpay for WooCommerce < 4.8.8 - Unauthenticated Order Shipping Modification via IDOR
The Razorpay for WooCommerce WordPress plugin before 4.8.8 does not perform ownership or authorization checks on a REST API route used during checkout, allowing unauthenticated attackers to modify the shipping information stored on arbitrary orders.
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Medium 4.3
Omega Solution CoinEx Crypto Customer Information API customer-currency authorization
A vulnerability was identified in Omega Solution CoinEx Crypto 2025. This impacts an unknown function of the file /customer-currency/ of the component Customer Information API. The manipulation of the argument ID leads to authorization bypass. Remote exploita…
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Medium 6.3
Omega Solution CoinEx Crypto Customer Profile API customer authorization
A vulnerability was determined in Omega Solution CoinEx Crypto 2025. This affects an unknown function of the file /customer/ of the component Customer Profile API. Executing a manipulation of the argument ID can lead to authorization bypass. The attack may be…
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High 8.8CVE-2026-96451 Public exploit
WordPress Ultimate Member plugin <= 2.13.1 - Privilege Escalation vulnerability
Authorization Bypass Through User-Controlled Key vulnerability in Ultimate Member Ultimate Member ultimate-member allows Privilege Escalation.This issue affects Ultimate Member: from n/a through 2.13.1.
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Medium 4.3
Helpdesk Support Ticket System for WooCommerce <= 2.1.6 - Insecure Direct Object Reference to Authenticated (Subscriber+) Arbitrary Ticket Response Deletion via 'id' Parameter
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Medium 4.3
UVdesk support-center-bundle before 1.1.3.3 IDOR via rateTicket Ticket Rating Endpoint
UVdesk support-center-bundle before 1.1.3.3 contains an insecure direct object reference vulnerability in the rateTicket action of Controller/Ticket.php that allows authenticated customers to rate other customers' tickets. Attackers can supply arbitrary ticke…
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Medium 5.4
WordPress PublishPress Series plugin <= 3.1.3 - Insecure Direct Object References (IDOR) vulnerability
Authorization Bypass Through User-Controlled Key vulnerability in PublishPress PublishPress Series organize-series allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects PublishPress Series: from n/a through 3.1.3.
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Medium 6.5
YesWiki before 4.6.7 Unauthenticated Page Overwrite via Bazar id_fiche
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High 7.1
YesWiki before 4.6.7 Authorization Bypass via Comments API editComment
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Medium 5.3
WordPress LearnPress plugin <= 4.4.9 - Insecure Direct Object References (IDOR) vulnerability
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Medium 4.3
WordPress Advanced Ads plugin <= 2.0.26 - Sensitive Data Exposure vulnerability
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Medium 5.3
WordPress Download Manager plugin <= 3.3.71 - Sensitive Data Exposure vulnerability
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Medium 5.3
Appointment Booking Plugin <= 5.7.1 - Insecure Direct Object Reference to Unauthenticated Unauthorized Transaction Intent Creation/Modification and Invoice Enumeration via 'invoice_id' Parameter
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, 5.7.1 via the OsPaypalConnectController::create_order_for_transaction() a…
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High 7.5
WordPress Photo Reviews for WooCommerce plugin <= 1.2.30 - Insecure Direct Object References (IDOR) vulnerability
Authorization Bypass Through User-Controlled Key vulnerability in VillaTheme Photo Reviews for WooCommerce woo-photo-reviews allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Photo Reviews for WooCommerce: from n/a thr…
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High 7.5
WordPress REST API Log plugin <= 1.7.2 - Insecure Direct Object References (IDOR) vulnerability
Unauthenticated Insecure Direct Object References (IDOR) in REST API Log <= 1.7.2 versions.
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Medium 6.5
WordPress WPFunnels plugin <= 3.13.1 - Insecure Direct Object References (IDOR) vulnerability
Unauthenticated Insecure Direct Object References (IDOR) in WPFunnels <= 3.13.1 versions.
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Medium 6.5
WordPress Bus Ticket Booking with Seat Reservation plugin <= 5.9.3 - Insecure Direct Object References (IDOR) vulnerability
Unauthenticated Insecure Direct Object References (IDOR) in Bus Ticket Booking with Seat Reservation <= 5.9.3 versions.
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Medium 5.3
WordPress ProfileGrid plugin <= 6.0.0.2 - Insecure Direct Object References (IDOR) vulnerability
Authorization Bypass Through User-Controlled Key vulnerability in Metagauss ProfileGrid profilegrid-user-profiles-groups-and-communities allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects ProfileGrid: from n/a through 6…
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Medium 4.3
WordPress Majestic Support plugin <= 1.2.0 - Insecure Direct Object References (IDOR) vulnerability
Authorization Bypass Through User-Controlled Key vulnerability in Ahmad Majestic Support majestic-support allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Majestic Support: from n/a through 1.2.0.
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Medium 6.5
Ghost 5.9.0 before 6.44.1 Authorization Bypass via Comment Like
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High 7.7
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High 8.5
n8n before 1.123.80 Credential Tampering via Duplicate Node IDs
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High 7.7
n8n before 2.39.6 and 2.40.x before 2.40.1 Credential Disclosure via Node-Tool Introspection
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High 7.1
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Medium 5.4
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Medium 6.5
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