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
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Medium 5.3
SQLAdmin: Unvalidated sortBy parameter in `ModelView` bypasses `column_sortable_list`
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Medium 6.5
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Medium 5.0
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Medium 4.3
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Medium 6.3
jaygajera17 E-commerce-project-springBoot UserController.java UserController.updateUser authorization
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Medium 6.3
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Medium 5.3
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Medium 4.2
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Medium 4.3
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Medium 5.4
WWBN AVideo Missing Authorization via remindMe.json.php
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Medium 6.1
Flowise before 3.1.4 Cross-Workspace Credential IDOR via node-load-method
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Medium 5.3
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Medium 6.5
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Medium 5.1
Incorrect Authorization in the Concrete CMS Express Entries Dashboard below version 9.5.3 Allows Entry Creation in an Unauthorized Object
Concrete CMS before 9.5.3 evaluated the authorization check for an Express entry submission against the entity of the posted form rather than the entity identified by the dashboard route. As a result, a user permitted to add entries to one Express object coul…
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Medium 5.1
In Concrete CMS below 9.5.3, Page Type update omits object-level authorization
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Medium 4.3
WordPress Starter Templates plugin <= 4.7.5 - Insecure Direct Object References (IDOR) vulnerability
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Medium 4.3
WordPress Slim SEO plugin <= 4.10.0 - Insecure Direct Object References (IDOR) vulnerability
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Medium 5.3
WordPress Quiz And Survey Master plugin <= 11.2.5 - Insecure Direct Object References (IDOR) vulnerability
Unauthenticated Insecure Direct Object References (IDOR) in Quiz And Survey Master <= 11.2.5 versions.
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Medium 4.3
MoguBlog through 6.2 Comment Author Spoofing via Request-Body Identity
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Medium 5.4
AVideo through 29.0 Cross-User Category Asset Deletion via Missing Ownership Check
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Medium 6.5
AVideo Missing Authorization in addLiveLink.php LiveLink Update
AVideo through commit c3edcc274c389816d434acadac07ee78eaf330c1 fails to verify ownership in addLiveLink.php when updating LiveLinks, allowing authenticated users to modify other users' links. A canStream user can overwrite another user's LiveLink HLS source a…
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Medium 5.3
Nexi XPay Build 7.6.1 - 7.6.2 - Unauthenticated Saved Payment Token Disclosure via IDOR
The Nexi XPay Build WordPress plugin from 7.6.1 to 7.6.2 does not verify that the saved payment token being requested belongs to the current user, allowing unauthenticated attackers to retrieve other customers' stored card token references together with a val…
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Medium 5.5
Visualizer < 4.0.6 - Contributor+ Arbitrary Post/Page Modification via IDOR
The Visualizer WordPress plugin before 4.0.6 does not properly authorise access to its chart-building actions, allowing users with the Contributor role and above to publish, rename, and overwrite the content of posts and pages they do not own, including other…
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Medium 5.3
YITH WooCommerce Wishlist < 4.18.1 - Unauthenticated Arbitrary Wishlist Rename via change_wishlist_title
The YITH WooCommerce Wishlist WordPress plugin before 4.18.1 does not verify that a user is authorised to rename a given wishlist, allowing unauthenticated users to rename any wishlist on the site.
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Medium 4.3
Advanced Customized Prompts <= 1.0.1 - Subscriber+ WooCommerce Order Item Metadata Tampering
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Medium 6.3
Concrete CMS 9.5.2 and below is vulnerable to an authorization bypass (IDOR) in the Calendar block's frontend event dialog (/ccm/calendar/view_event/{bID}/{occurrence_id}).
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Medium 6.5
Langflow is vulnerable to unauthorized file system access due to path traversal and missing storage path validation
IBM Langflow OSS 1.0.0 through 1.11.5 Langflow could allow an authenticated attacker to access sensitive files belonging to other users due to improper access control in the File/Read File component. When executing flows through the /api/v1/run/advanced/{flow…
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Medium 5.9
Concrete CMS 8.3.0 through 9.5.2 is vulnerable to an authorization bypass through user-controlled key (cross-calendar IDOR) in the Calendar event edit dialog
Concrete CMS versions 8.3.0 through 9.5.2 are vulnerable to an authorization bypass in the Calendar event edit dialog (concrete/controllers/dialog/event/edit.php). The dialog checked permissions against the calendar identifier supplied in the request rather t…
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Medium 4.3
An authorization bypass vulnerability exists in SHIRASAGI through a user-controlled key, which may allow an unauthorize…
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Medium 4.3
BurgerEditor 3.0.0 through 3.4.0 contains an issue with authorization bypass through user-controlled key. If this vulne…
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Medium 4.3
Open WebUI: Any authenticated user can inject chats into another user's folder via chat completions
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Medium 4.3
Open WebUI: Channel members can overwrite another member's message via the chat completions endpoint
Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.9.5 until 0.11.1, the channel branch of chat_completion in backend/open_webui/main.py checked channel write access and channel membership for a supplied message_id bu…
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Medium 4.3
snipe-it 8.6.3 before 8.7.0 Authorization Bypass via print endpoints
snipe-it versions before 8.7.0 contain an authorization bypass vulnerability in location print endpoints that fails to enforce per-model authorization checks. Authenticated attackers with location view permission can access printassigned and printallassigned …
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Medium 5.0
Snipe-IT before 8.7.0 Authorization Bypass via Asset Acceptance Report
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Medium 6.5
Siyuan before v3.8.2 Information Disclosure via Export Preview
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Medium 5.3
Sunshine Photo Cart < 3.7 - Unauthenticated Price Manipulation via IDOR
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Medium 5.4
Tanium addressed an improper access controls vulnerability in Comply.
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Medium 5.4
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Medium 6.3
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Medium 4.3
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