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 5.9
API Platform Core: Cross-user attribute leak in JSON:API and HAL item normalizers due to missing isCacheKeySafe gate
API Platform Core is a system to create hypermedia-driven REST and GraphQL APIs. In versions from 2.6.0 prior to 4.1.29, 4.2.26, and 4.3.12, a missing isCacheKeySafe gate in the JSON:API and HAL item normalizers causes a cross-user attribute leak. #[ApiProper…
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Medium 4.3
Foreman: foreman: information disclosure via improper validation of nested request parameters
A flaw was found in Foreman. An authenticated user with host-edit permissions could exploit a cross-tenant information disclosure vulnerability. This flaw occurs because the taxonomy_scope controller method does not properly validate organization and location…
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Medium 6.5
Foreman: foreman: unauthorized modification of host configurations via broken access control
A flaw was found in Foreman. This broken access control vulnerability allows an authenticated user with host-edit permissions to retarget an existing lookup value override to a different host. This is achieved by modifying the match field through nested host …
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Medium 6.5
Foreman: foreman: cross-tenant private ssh key disclosure via taxonomy scoping bypass
A flaw was found in foreman. Authenticated users with 'view_keypairs' permission can bypass taxonomy scoping, allowing them to download private SSH (Secure Shell) keys from other organizations by directly querying key pair IDs. This vulnerability leads to cro…
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Medium 5.3
Insecure Direct Object Reference in MCO
MCO is vulnerable to an Insecure Direct Object Reference (IDOR) vulnerability in the /customer/servlet/mco/webapi/trading-document/fetchPdfStatement endpoint. The application does not properly validate whether an authenticated user is authorized to access a r…
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Medium 4.3
Qi Blocks <= 1.4.9 - Insecure Direct Object Reference to Authenticated (Author+) Arbitrary Style Modification via 'page_id' Parameter
The Qi Blocks plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 1.4.9 via the 'page_id' parameter due to missing validation on a user controlled key. This makes it possible for authenticated attackers…
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Medium 6.5
LearnPress <= 4.3.9.1 - Insecure Direct Object Reference to Authenticated (Subscriber+) Sensitive Information Disclosure via 'userId' Parameter
The LearnPress – WordPress LMS Plugin for Create and Sell Online Courses plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 4.3.9.1 via the 'userId' parameter due to missing validation on a user contro…
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Medium 4.3
Kadence Blocks <= 3.7.7 - Insecure Direct Object Reference to Authenticated (Contributor+) Arbitrary Optimizer Data Deletion/Read/Modification via 'post_path' Parameter
The Kadence Blocks – Gutenberg Blocks for Page Builder Features plugin for WordPress is vulnerable to Insecure Direct Object Reference in versions up to and including 3.7.7. This is due to a mismatch between the object used for authorization and the object ac…
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High 8.8
Capgo - Broken Object Level Authorization via x-limited-key-id Header
Capgo before 12.128.2 contains a broken object level authorization vulnerability in middlewareKey() that accepts the client-controlled x-limited-key-id header without validating ownership, allowing authenticated users to adopt cross-tenant limited keys. Attac…
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Medium 6.5
Invidious - Cross-User Playlist Video Deletion via Missing Ownership Check
Invidious through 2.20260626.0, fixed in commit 77ad416, contains a broken object level authorization vulnerability that allows authenticated attackers to delete videos from other users' playlists by supplying an arbitrary global video index in the remove_vid…
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Critical 9.6
Cross-Tenant API Key Reuse and Billing Fraud in Langflow Voice Mode Subsystem
IBM Langflow OSS 1.0.0 through 1.10.0 voice mode contains improper shared-state handling that allows reuse of API clients across tenant boundaries. An authenticated attacker can manipulate cache state to cause requests from other users to be processed using i…
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Medium 4.3
Coolify: Cross-team application domain enumeration via domains_by_server endpoint
Coolify is an open-source and self-hostable tool for managing servers, applications, and databases. Prior to 4.0.0-beta.464, `GET /api/v1/servers/{server_uuid}/domains?uuid={app_uuid}` bypasses team scoping when the optional uuid query parameter is provided. …
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Medium 5.0
Coolify: IDOR in Deployment API - Cross-Team Deployment Information Disclosure
Coolify is an open-source and self-hostable tool for managing servers, applications, and databases. Prior to 4.0.0-beta.464, the `GET /api/v1/deployments/{uuid}` endpoint allows any authenticated user to access deployment details belonging to any team, bypass…
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Medium 5.0
Coolify: Cross-team deployment information disclosure via GET /api/v1/deployments/{uuid} (IDOR)
Coolify is an open-source and self-hostable tool for managing servers, applications, and databases. Prior to 4.0.0-beta.464, `GET /api/v1/deployments/{uuid}` in DeployController.php retrieves deployment details without validating that the deployment belongs t…
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Medium 4.3
Keycloak-admin-ui: keycloak-admin-ui:admin ui extension brute-force-user endpoint bypasses fgapv2 user view restrictions
A vulnerability was discovered in Keycloak's Admin UI extension that allows certain administrative users to bypass security restrictions. When Fine-Grained Admin Permissions (FGAPv2) are enabled, an administrator who should only be able to search for users (b…
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Critical 9.8
ProfileGrid - User Profiles, Groups and Communities <= 5.9.9.5 - Unauthenticated Privilege Escalation via Email Overwrite
The ProfileGrid – User Profiles, Groups and Communities plugin for WordPress is vulnerable to privilege escalation via account takeover in all versions up to, and including, 5.9.9.5. This is due to the plugin not validating a `user_login` on registration form…
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High 7.7
Coolify: Cross-Team IDOR via Unscoped Server and Project Lookups Exposes SSH Keys and Infrastructure
Coolify is an open-source and self-hostable tool for managing servers, applications, and databases. Prior to 4.0.0-beta.471, Coolify server and project lookups are not scoped to the current team, allowing any authenticated user to access servers and projects …
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Critical 9.6
Coolify Cross-Team IDOR: Livewire Components Accept Unscoped server_id and destination_uuid — Deploy to Other Teams' Servers
Coolify is an open-source and self-hostable tool for managing servers, applications, and databases. Prior to 4.0.0-beta.474, Coolify's API controllers consistently validate server ownership with Server::whereTeamId($teamId) before any operation. However, mult…
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Medium 6.4
SigNoz < 0.133.0 - Cross-Organization Insecure Direct Object Reference in Alert Rules
SigNoz before 0.133.0 contains a broken access control vulnerability that allows authenticated users to access other organizations' alert rules by supplying a target rule UUID, as the alert rule store predicates fail to filter by organization ID. Attackers ca…
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Medium 4.3
PhotoPrism - Unauthorized User Profile Modification via PUT /api/v1/users/{uid} Endpoint
PhotoPrism before 260601-a7d098548 contains a broken access control vulnerability that allows authenticated non-admin users to modify other users' profile information by sending requests to arbitrary user endpoints. Attackers can exploit the missing session-t…
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Medium 5.9
LibrePhotos < 1.0.0 - Insecure Direct Object Reference in SetPhotosShared Endpoint
LibrePhotos before 1.0.0 contains a broken object level authorization vulnerability in the SetPhotosShared endpoint that allows authenticated users to grant themselves access to other users' private photos by bypassing ownership validation. Attackers can mani…
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Medium 5.3
Teable - Unauthenticated Hidden Field Disclosure via Projection Parameter Override
Teable before 2026-06-15T04-43-24Z.1912 contains an improper access control vulnerability that allows anonymous attackers to access hidden field data by supplying arbitrary field IDs in the projection parameter of the share view records endpoint. Attackers ca…
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High 7.5
Modoboa < 2.9.0 - Insecure Direct Object Reference in Account Password Change API
Modoboa before 2.9.0 contains an insecure direct object reference vulnerability in the PUT /api/v1/accounts/{pk}/password/ endpoint that allows domain administrators to change any user's password. Attackers with domain admin privileges can bypass object-level…
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Medium 6.5
WordPress Colissimo Officiel : Méthodes de livraison pour WooCommerce plugin <= 2.9.0 - Insecure Direct Object References (IDOR) vulnerability
Unauthenticated Insecure Direct Object References (IDOR) in Colissimo Officiel : Méthodes de livraison pour WooCommerce <= 2.9.0 versions.
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Medium 4.3
WordPress Simple User Avatar plugin <= 4.9 - Insecure Direct Object References (IDOR) vulnerability
Authorization Bypass Through User-Controlled Key vulnerability in Matteo Manna Simple User Avatar allows Exploiting Incorrectly Configured Access Control Security Levels. This issue affects Simple User Avatar: from n/a through 4.9.
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Medium 5.4
CodeAstro Complaint Management System Report Endpoint Report.php deletereport authorization
A security flaw has been discovered in CodeAstro Complaint Management System 1.0. The affected element is the function deletereport of the file application/controllers/Report.php of the component Report Endpoint. The manipulation results in authorization bypa…
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Medium 5.0
CherryHQ cherry-studio CherryIN Preload API MemoryService.ts sha256 authorization
A vulnerability was detected in CherryHQ cherry-studio up to 1.9.7. This affects the function sha256 of the file src/main/services/memory/MemoryService.ts of the component CherryIN Preload API. Performing a manipulation of the argument state results in author…
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Medium 6.3
Databend Tenant client_session_manager.rs state_key authorization
A vulnerability was identified in Databend up to 1.2.881 on HTTP. This affects the function ClientSessionManager::state_key of the file src/query/service/src/servers/http/v1/session/client_session_manager.rs of the component Tenant Handler. The manipulation l…
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Low 3.7
glpi-project glpi Document document.send.php canViewFile authorization
A security vulnerability has been detected in glpi-project glpi 11.0.5/11.0.6/11.0.7. This affects the function Document::canViewFile of the file front/document.send.php of the component Document Handler. Such manipulation of the argument docid leads to autho…
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Medium 4.3
Dokan: AI Powered WooCommerce Multivendor Marketplace Solution <= 5.0.4 - Authenticated (Subscriber+) Insecure Direct Object Reference to Information Disclosure via 'id' Parameter
The Dokan: AI Powered WooCommerce Multivendor Marketplace Solution – Build Your Own Amazon, eBay, Etsy plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 5.0.4 via the 'id' parameter due to missing val…
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High —
SolidInvoice: IDOR in LiveComponent allows same-company cross-user access to API tokens and notification transport settings
## Summary Four authorization bypass vulnerabilities in Symfony LiveComponent actions allow any authenticated user within a company to access, modify, or delete other users' API tokens and notification transport settings. The root cause is that LiveComponent …
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Medium 4.3
OpenProject: Improper Access Control on OpenProject through /projects/[projectName]/meetings via "invited_user_id" in GET parameter "filters" leads to user names disclosure
OpenProject is open-source, web-based project management software. Prior to 17.3.2 and 17.4.0, the web application's meetings filter feature leaks whether a given user ID corresponds to a valid account and discloses the user's full name, allowing an attacker …
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Medium 4.3
OpenProject: IDOR on OpenProject through /api/v3/documents/{id} via PATCH parameter "project_id" leads to Unauthorized Modification of Resources
OpenProject is open-source, web-based project management software. Prior to 17.3.2 and 17.4.0, OpenProject exposes a document update endpoint used to modify existing documents. The target document is loaded with visibility checks and then updated. During upda…
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Medium 4.3
OpenProject: Private work package data disclosure through single meeting agenda item API
OpenProject is open-source, web-based project management software. Prior to 17.4.0, `GET /api/v3/meetings/:meeting_id/agenda_items/:agenda_item_id` discloses private work package data from a linked work package that belongs to a private/inaccessible project. …
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Medium 6.5
OpenProject: Relations API Filter Bypasses Visibility Scope, Leaking Cross-Project Work Package Subjects
OpenProject is open-source, web-based project management software. Prior to 17.4.0, the GET /api/v3/relations endpoint allows any authenticated user to retrieve relations — and the subject (title) of work packages they have no permission to view — by supplyin…
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Medium 5.4
OpenProject: Cross-project authorization bypass allows deleting public Calendar and Team Planner queries from unauthorized projects
OpenProject is open-source, web-based project management software. Prior to 17.3.3 and 17.4.1, a cross-project IDOR / authorization context confusion in the Calendar and Team Planner modules allows a user with management permissions in one project to delete p…
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Critical 9.9CVE-2026-52782 Public exploit
OpenProject: IDOR through /projects/<A>/settings/project_storages/<A_ps_id> via PATCH parameter "storages_project_storage[project_folder_id]" leads to Access to Unauthorized Resources
OpenProject is open-source, web-based project management software. Prior to 17.3.3 and 17.4.1, there is an IDOR through /projects/<A>/settings/project_storages/<A_ps_id> via PATCH parameter "storages_project_storage[project_folder_id]" leads to Access to Unau…
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Medium 5.4
AutoGPT: IDOR in Webhook Ping Endpoint Allows Enumeration and Cross-User Ping Triggering
AutoGPT is a workflow automation platform for creating, deploying, and managing continuous artificial intelligence agents. Prior to , the `POST /api/integrations/webhooks/{webhook_id}/ping` endpoint fetches the target webhook by primary key alone without veri…
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High 8.4
Broken Access Control in Canonical LXD DevLXD API
Broken Access Control in the devLXDInstancePatchHandler component of Canonical LXD allows an untrusted guest to mount, read, and overwrite another guest's custom storage volume via a crafted device PATCH request over /dev/lxd when security.devlxd.management.v…
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Medium 5.3
WordPress GravityView plugin <= 3.0.0 - Insecure Direct Object References (IDOR) vulnerability
Unauthenticated Insecure Direct Object References (IDOR) in GravityView <= 3.0.0 versions.