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
1,877 results · Clear filters · Feed
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Medium 4.3
APITable through 1.14.0-beta Authorization Bypass via GET /node/{nodeId}/description
APITable through 1.14.0-beta contains an authorization bypass vulnerability that allows authenticated users to read node descriptions from other spaces by supplying a user-controlled nodeId. Attackers can request GET /node/{nodeId}/description, which skips sp…
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Medium 6.3
Dokploy through 0.30.8 Cross-Organization Authorization Bypass via port tRPC Router
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Medium 5.3
rustdesk-api through 2.7 Authorization Bypass via POST /api/sysinfo
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Medium 6.0
temporal-proxy payload decryption is not bound to the request namespace
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Medium 5.4
WordPress ELEX WooCommerce Advanced Bulk Edit Products, Prices & Attributes plugin <= 1.5.3 - Insecure Direct Object References (IDOR) vulnerability
Authorization Bypass Through User-Controlled Key vulnerability in ELEXtensions ELEX WooCommerce Advanced Bulk Edit Products, Prices & Attributes elex-bulk-edit-products-prices-attributes-for-woocommerce-basic allows Exploiting Incorrectly Configured Access Co…
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Medium 6.3
WordPress Simply Schedule Appointments plugin <= 1.6.12.35 - Insecure Direct Object References (IDOR) vulnerability
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Medium 6.5
NL Portal Backend Libraries: Document contents remained downloadable by any logged-in user until 3.0.3 (incomplete fix of CVE-2026-49463)
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Medium 6.5
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Medium 4.3
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Medium 4.3
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Medium 6.1
n8n before 2.41.4 and 2.42.1 Cross-Project Agent Ownership Transfer via Agents Create Endpoint
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Medium 6.1
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Medium 5.4
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Medium 6.5
Plane: Cross-Project Page Content Disclosure via PageVersionEndpoint Missing Project Scope
Plane is an open-source project management tool. Prior to 1.4.0, PageVersionEndpoint in apps/api/plane/app/views/page/version.py scopes page-version lookups by workspace and page identifiers but not by the project_id from the URL. ProjectPagePermission likewi…
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Medium 6.5
Nexent through 2.7.0 Cross-Tenant Knowledge-Base File Read via check_file_access
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Medium 5.3
Blinko through 1.8.8 Private Attachment Read via /api/file Route
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Medium 4.3
Shopizer through 3.2.5 Authorization Bypass via Product Review customerId
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Medium 5.3
AstronRPA through 1.1.6 Cross-Tenant File Disclosure via /file/download
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Medium 4.3
lamp-boot 4.16.0-java17 through 4.21.2-java17 IDOR via /anyone/findDeptByCompany
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Medium 5.9
Gitea private attachment disclosure through repository mismatch
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Medium 6.8
Formbricks before 4.9.0 Cross-Organization IDOR in Server Actions via organizationId
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Medium 6.5
youlai-mall through commit 9f62de8 Order Information Disclosure via App Order List
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Medium 5.9
REBUILD through 4.5.0 Authorization Bypass via aibot2 Chat Endpoints chatid
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Medium 5.4
BizSpring Shop through commit cf22d39daaf1 IDOR via /member/order Cancel and Receive
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Medium 4.3
WisdomGarden｜Tronclass - Insecure Direct Object Reference
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Medium 4.3
WisdomGarden｜Tronclass - Insecure Direct Object Reference
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Medium 5.3
Cart Abandonment Recovery for WooCommerce < 2.1.4 - Unauthenticated Abandoned Cart Record Deletion and Modification via IDOR
The Cart Abandonment Recovery for WooCommerce WordPress plugin before 2.1.4 does not verify ownership of the email address used to select an abandoned-cart record before deleting or overwriting it, allowing unauthenticated attackers who know a customer's emai…
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Medium 5.3
Sifalo Pay 2.0 - 2.5.2 - Unauthenticated Payment Confirmation Forgery via an Unbound Transaction Id
The Sifalo Pay WordPress plugin before 2.5.3 does not verify that a payment transaction identifier belongs to the order it is confirming, nor that the requester owns that order, allowing unauthenticated attackers holding one valid transaction identifier from …
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Medium 4.3
rtMedia for WordPress, BuddyPress and bbPress < 4.7.14 - Subscriber+ Arbitrary Album Media Injection via IDOR
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Medium 4.3
GamiPress < 8.0.6 - Subscriber+ Activity Log Disclosure
The GamiPress WordPress plugin before 8.0.6 does not perform a capability check or ownership verification on one of its authenticated AJAX actions, allowing any authenticated user, such as a Subscriber, to read arbitrary entries from its activity log, includi…
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Medium 5.3
NEX-Forms 9.2.1 - 9.2.5 - Unauthenticated Arbitrary Form Entry Modification via 'nf_set_entry_update_id' Parameter
The NEX-Forms WordPress plugin before 9.3.1 does not perform any authorization, ownership or request-validation checks before updating stored form entries, allowing unauthenticated attackers to overwrite, permanently erase, reassign or append to any previousl…
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Medium 5.3
Database Addon for Contact Form 7 <= 1.4.1 - Unauthenticated Limited File Deletion via Injected 'attackcfdb7_file' Submission Field
The Database Addon for Contact Form 7 – CFDB7 plugin for WordPress is vulnerable to Arbitrary File Deletion in versions up to, and including, 1.4.1. This is due to the plugin storing arbitrary (non-form-tag) submission fields in its db7_forms row and the proc…
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Medium 6.9
Authorization bypass through User-Controlled key vulnerability in HYPR Passwordless on Windows allows Privilege Escalat…
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Medium 6.5
Skype for Business Elevation of Privilege Vulnerability
Improper authorization in Skype for Business and Microsoft Lync allows an authorized attacker to elevate privileges over a network.
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Medium 5.4
QloApps through 1.7.0 Authorization Bypass via id_hotel in Room Type Creation
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Medium 4.3
ai-fusion-video through 1.2.0 Insecure Direct Object Reference in Generation Task Item Endpoints
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Medium 6.5
fuintCatering through commit 122c9e6 IDOR via /clientApi/refund/detail
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Medium 4.3
waynboot-mall through 2.0.0 IDOR via Mobile Cart Endpoints
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Medium 5.4
waynboot-mall through 2.0.0 IDOR via Mobile Address Endpoints
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Medium 6.3
waynboot-mall through 2.0.0 IDOR via Mobile Order Endpoints
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