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)
-
Architecture and Design
For each and every data access, ensure that the user has sufficient privilege to access the record that is being requested.
-
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.
-
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
1,891 results · Clear filters · Feed
-
Medium 5.3
Authenticated user can bypass authorization in Ribblr - Crochet & Knitting iOS application
Authenticated user can bypass authorization in Ribblr - Crochet & Knitting iOS application
-
Medium 5.3
Booking Calendar Contact Form <= 1.2.63 - Authenticated (Subscriber+) Insecure Direct Object Reference to Calendar Takeover
The Booking Calendar Contact Form plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 1.2.63 via the dex_bccf_admin_int_calendar_list.inc.php file due to missing validation on a user controlled key. Thi…
-
Medium 5.3
Maxi Blocks <= 2.1.8 - Missing Authorization to Authenticated (Author+) Media File Deletion via 'old_media_src' Parameter
The MaxiBlocks Builder plugin for WordPress is vulnerable to arbitrary media file deletion due to insufficient file ownership validation on the 'maxi_remove_custom_image_size' AJAX action in all versions up to, and including, 2.1.8. This makes it possible for…
-
Medium 4.3
Xibo CMS has Preview and SavedReport IDOR via disableUserCheck without controller-level authorization
Xibo is an open source digital signage platform with a web content management system and Windows display player software. Prior to version 4.4.1, any authenticated user can manually construct a URL to preview campaigns/regions, and export saved reports belong…
-
Medium 4.7
Webkitgtk: authorization bypass through webpage::send-request signal handler
An API design flaw in WebKitGTK and WPE WebKit allows untrusted web content to unexpectedly perform IP connections, DNS lookups, and HTTP requests. Applications expect to use the WebPage::send-request signal handler to approve or reject all network requests. …
-
Medium 6.5
BigBlueButton's missing authorization allows viewer to inject/overwrite captions
BigBlueButton is an open-source virtual classroom. Versions prior to 3.0.24 have a missing authorization that allows viewers to inject/overwrite captions Version 3.0.24 tightened the permissions on who is able to submit captions. No known workarounds are avai…
-
Medium 5.3
Authorization bypass in GitHub Enterprise Server secret scanning push protection allows cross-repository modification of delegated bypass reviewers
An authorization bypass vulnerability was identified in GitHub Enterprise Server that allowed an attacker with admin access on one repository to modify the secret scanning push protection delegated bypass reviewer list on another repository by manipulating th…
-
Medium 6.5
WWBN AVideo has IDOR in Live Restreams list.json.php that Exposes Other Users' Stream Keys and OAuth Tokens
WWBN AVideo is an open source video platform. In versions 29.0 and prior, the endpoint `plugin/Live/view/Live_restreams/list.json.php` contains an Insecure Direct Object Reference (IDOR) vulnerability that allows any authenticated user with streaming permissi…
-
Medium 4.3
FreeScout's Customer AJAX Create Modifies Hidden Existing Customer
FreeScout is a free self-hosted help desk and shared mailbox. Prior to version 1.8.214, the Change Customer modal exposes a “Create a new customer” flow via POST /customers/ajax with action=create. Under limited visibility, the endpoint drops unique-email val…
-
Medium 5.7
FreeScout's Missing Authorization in load_customer_info Allows Any Authenticated User to Access Full Customer PII
FreeScout is a free self-hosted help desk and shared mailbox. Prior to version 1.8.213, the `load_customer_info` action in `POST /conversation/ajax` returns complete customer profile data to any authenticated user without verifying mailbox access. An attacker…
-
Medium 6.5
OpenProject has Cross-Project Meeting Agenda Item Injection via Unscoped Section Lookup
OpenProject is open-source, web-based project management software. Prior to version 17.3.0, a user with `manage_agendas` permission in any project can inject agenda items into meetings belonging to any other project on the instance — even projects they have n…
-
Medium 6.3
TransformerOptimus SuperAGI project.py get_projects_organisation authorization
A security flaw has been discovered in TransformerOptimus SuperAGI up to 0.0.14. Affected by this vulnerability is the function get_project/update_project/get_projects_organisation of the file superagi/controllers/project.py. The manipulation results in autho…
-
Medium 6.3
TransformerOptimus SuperAGI agent.py get_schedule_data authorization
A vulnerability was identified in TransformerOptimus SuperAGI up to 0.0.14. Affected is the function delete_agent/stop_schedule/get_schedule_data of the file superagi/controllers/agent.py. The manipulation of the argument agent_id leads to authorization bypas…
-
Medium 6.3
TransformerOptimus SuperAGI Agent Execution Endpoint agent_execution.py update_agent_execution authorization
A vulnerability was determined in TransformerOptimus SuperAGI up to 0.0.14. This impacts the function get_agent_execution/update_agent_execution of the file superagi/controllers/agent_execution.py of the component Agent Execution Endpoint. Executing a manipul…
-
Medium 6.5CVE-2025-66954 Public exploit
A vulnerability exists in the Buffalo Link Station version 1.85-0.01 that allows unauthenticated or guest-level users t…
-
Medium 6.3
TransformerOptimus SuperAGI Budget Endpoint budget.py update_budget authorization
A vulnerability was identified in TransformerOptimus SuperAGI up to 0.0.14. Impacted is the function get_budget/update_budget of the file superagi/controllers/budget.py of the component Budget Endpoint. Such manipulation leads to authorization bypass. It is p…
-
Medium 5.4
TransformerOptimus SuperAGI Organisation Update Endpoint organisation.py update_organisation authorization
A vulnerability was determined in TransformerOptimus SuperAGI up to 0.0.14. This issue affects the function update_organisation of the file superagi/controllers/organisation.py of the component Organisation Update Endpoint. This manipulation of the argument o…
-
Medium 5.4
TransformerOptimus SuperAGI User Update Endpoint user.py update_user authorization
A vulnerability was found in TransformerOptimus SuperAGI up to 0.0.14. This vulnerability affects the function update_user of the file superagi/controllers/user.py of the component User Update Endpoint. The manipulation of the argument user_id results in auth…
-
Medium 5.4
TransformerOptimus SuperAGI API Key Management Endpoint api_key.py edit_api_key authorization
A vulnerability has been found in TransformerOptimus SuperAGI up to 0.0.14. This affects the function delete_api_key/edit_api_key of the file superagi/controllers/api_key.py of the component API Key Management Endpoint. The manipulation leads to authorization…
-
Medium 6.3
kodcloud KodExplorer systemRole.class.php roleGroupAction authorization
A weakness has been identified in kodcloud KodExplorer up to 4.52. Affected by this vulnerability is the function roleGroupAction of the file /app/controller/systemRole.class.php. Executing a manipulation of the argument group_role can lead to authorization b…
-
Medium 5.3
LatePoint <= 5.3.2 - Insecure Direct Object Reference to Unauthenticated Sensitive Financial Data Exposure via Sequential Invoice ID
The LatePoint plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 5.3.2. The vulnerability exists because the OsStripeConnectController::create_payment_intent_for_transaction action is registered as a p…
-
Medium 5.3
Fluent Forms – Customizable Contact Forms, Survey, Quiz, & Conversational Form Builder <= 6.1.21 - Insecure Direct Object Reference in Stripe SCA Confirmation to Unauthenticated Payment Status Modification
The Fluent Forms – Customizable Contact Forms, Survey, Quiz, & Conversational Form Builder plugin for WordPress is vulnerable to Insecure Direct Object Reference via the 'submission_id' parameter in versions up to, and including, 6.1.21. This is due to missin…
-
Medium 5.3
WordPress COMPE plugin <= 1.1.4 - Insecure Direct Object References (IDOR) vulnerability
Authorization Bypass Through User-Controlled Key vulnerability in VillaTheme COMPE compe-woo-compare-products allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects COMPE: from n/a through <= 1.1.4.
-
Medium 4.3
Avada (Fusion) Builder <= 3.15.1 - Authenticated (Subscriber+) Sensitive Information Exposure via Insecure Direct Object Reference
The Avada (Fusion) Builder plugin for WordPress is vulnerable to Sensitive Information Exposure in all versions up to, and including, 3.15.1. This is due to the plugin's `fusion_get_post_custom_field()` function failing to validate whether metadata keys are p…
-
Medium 5.4CVE-2026-34213 Public exploit
Docmost has cross-page attachment overwrite via flawed attachmentId overwrite validation
Docmost is open-source collaborative wiki and documentation software. Starting in version 0.3.0 and prior to version 0.71.0, improper authorization in Docmost allows a low-privileged authenticated user to overwrite another page's attachment within the same wo…
-
Medium 6.5
Chamilo LMS: IDOR in the Notebook Module allows an attacker to view other users' private notes
Chamilo LMS is an open-source learning management system. In versions prior to 2.0.0-RC.3, the notebook module contains an Insecure Direct Object Reference (IDOR) vulnerability that allows any authenticated student to read the private course notes of any othe…
-
Medium 5.3
Authentication bypass in MCPHub
MCPHub in versions below 0.11.0 is vulnerable to authentication bypass. Some endpoints are not protected by authentication middleware, allowing an unauthenticated attacker to perform actions in the name of other users and using their privileges.
-
Medium 5.4
EspoCRM: Email importEml can import and delete another user's attachment by raw fileId
EspoCRM is an open source customer relationship management application. In versions 9.3.3 and below, the POST /api/v1/Email/importEml endpoint contains an Insecure Direct Object Reference (IDOR) vulnerability where the attacker-supplied fileId parameter is us…
-
Medium 6.5
Pachno 1.0.6 Authentication Bypass via runSwitchUser()
Pachno 1.0.6 contains an authentication bypass vulnerability in the runSwitchUser() action that allows authenticated low-privilege users to escalate privileges by manipulating the original_username cookie. Attackers can set the client-controlled original_user…
-
Medium 4.3
Tutor LMS <= 3.9.7 - Authenticated (Subscriber+) Insecure Direct Object Reference to Arbitrary Course Content Modification
The Tutor LMS – eLearning and online course solution plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 3.9.7. This is due to missing authorization checks in the `save_course_content_order()` private m…
-
Medium 5.3
Broken Access Control (IDOR) Leading to Cross-Tenant Application Access in FastGPT
FastGPT is an AI Agent building platform. Prior to 4.14.10.4, Broken Access Control vulnerability (IDOR/BOLA) allows any authenticated team to access and execute applications belonging to other teams by supplying a foreign appId. While the API correctly valid…
-
Medium 6.5
Chamilo LMS has an Insecure Direct Object Reference (IDOR) - User Data Exposure
Chamilo LMS is a learning management system. Prior to 2.0.0-RC.3, any authenticated user (including ROLE_STUDENT) can enumerate all platform users and access personal information (email, phone, roles) via GET /api/users, including administrator accounts. This…
-
Medium 6.5
Chamilo LMS has an IDOR in REST API Stats Endpoint Exposes Any User's Learning Data
Chamilo LMS is a learning management system. Prior to 2.0.0-RC.3, an Insecure Direct Object Reference (IDOR) vulnerability in the REST API stats endpoint allows any authenticated user (including low-privilege students with ROLE_USER) to read any other user's …
-
Medium 5.9
OpenClaw < 2026.3.22 - Webhook Reply Rebinding via Username Resolution in Synology Chat
OpenClaw before 2026.3.22 contains a webhook reply delivery vulnerability that allows attackers to rebind chat replies to unintended users by exploiting mutable username matching instead of stable numeric user identifiers. Attackers can manipulate username ch…
-
Medium 6.5
OpenClaw < 2026.3.25 - Authorization Bypass in HTTP Session History Route
OpenClaw before 2026.3.25 contains an authorization bypass vulnerability in the HTTP /sessions/:sessionKey/history route that skips operator.read scope validation. Attackers can access session history without proper operator read permissions by sending HTTP r…
-
Medium 6.5
OpenClaw 2026.3.11 < 2026.3.25 - Session Isolation Bypass via sessionId Resolution
OpenClaw versions 2026.3.11 through 2026.3.24 contain a session isolation bypass vulnerability where session_status resolves sessionId to canonical session keys before enforcing visibility checks. Sandboxed child sessions can exploit this to access parent or …
-
Medium 4.2
OpenClaw < 2026.3.22 - Policy Confusion via Room Name Collision in Nextcloud Talk
OpenClaw before 2026.3.22 contains a policy confusion vulnerability in room authorization that matches colliding room names instead of stable room tokens. Attackers can exploit similarly named rooms to bypass allowlist policies and gain unauthorized access to…
-
Medium 4.2
OpenClaw < 2026.3.25 - Authorization Bypass via Group Policy Rebinding with Mutable Space displayName
OpenClaw before 2026.3.25 contains an authorization bypass vulnerability in Google Chat group policy enforcement that relies on mutable space display names. Attackers can rebind group policies by changing or colliding space display names to gain unauthorized …
-
Medium 4.3
MStore API <= 4.18.3 - Authenticated (Subscriber+) Insecure Direct Object Reference to Arbitrary User Meta Update
The MStore API plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 4.18.3. This is due to the update_user_profile() function in controllers/flutter-user.php processing the 'meta_data' JSON parameter wit…
-
Medium 4.3
Authorization Bypass Through User-Controlled Key in GitLab
GitLab has remediated an issue in GitLab CE/EE affecting all versions from 18.2 before 18.8.9, 18.9 before 18.9.5, and 18.10 before 18.10.3 that could have allowed an authenticated user to access confidential issues assigned to other users via CSV export due …