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 4.9
NocoDB: Missing Ownership Validation in MCP Token Operations
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High 7.1
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Medium 6.5
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Medium 5.7
ClipBucket v5 has IDOR in Collection Item Management
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High 7.1
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Medium 5.3
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Medium 5.3
Manyfold has IDOR in ModelFilesController
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High 8.3
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Medium 4.3
wger: IDOR in nutritional_values endpoints exposes private dietary data via direct ORM lookup
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Low 3.1
wger: IDOR via user-unscoped cache keys on routine API actions exposes workout data
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Medium 4.3
wger: IDOR in RepetitionsConfig and MaxRepetitionsConfig API leak other users' workout data
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High 7.5
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High 7.5
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Medium 6.5
OpenEMR's Eye Exam View Trusts form_id Without Verifying Patient/Encounter Ownership
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Medium 6.5
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Medium 6.5
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High 7.1
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Medium 5.7
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Medium 4.9
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Medium 5.3
feiyuchuixue sz-boot-parent API Endpoint sys-message authorization
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Medium 4.3
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Medium 6.5
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Medium 6.3
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Medium 5.4
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Medium 5.4
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High 7.5
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High 7.5
WordPress PawFriends - Pet Shop and Veterinary WordPress theme theme <= 1.3 - Insecure Direct Object References (IDOR) vulnerability
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High 7.5
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Authorization Bypass Through User-Controlled Key vulnerability in cnvrse Cnvrse cnvrse allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Cnvrse: from n/a through < 026.02.10.20.
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Medium 6.5
WordPress Paid Member Subscriptions plugin <= 2.16.8 - Insecure Direct Object References (IDOR) vulnerability
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High 7.5
WordPress Shiprocket plugin <= 2.0.8 - Insecure Direct Object References (IDOR) vulnerability
Authorization Bypass Through User-Controlled Key vulnerability in Shiprocket Shiprocket shiprocket allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Shiprocket: from n/a through <= 2.0.8.
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Critical 9.4
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Critical 9.2
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High 7.3
IDOR in MeCODE Informatics' Envanty
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Medium 5.3
MP3 Audio Player – Music Player, Podcast Player & Radio by Sonaar 4.0 - 5.10 - Unauthenticated Insecure Direct Object Reference to Sensitive Information Exposure
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Medium 5.3
WordPress Quiz And Survey Master plugin <= 10.3.4 - Insecure Direct Object References (IDOR) vulnerability
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Medium 5.3
WordPress Frontend File Manager plugin <= 23.5 - Insecure Direct Object References (IDOR) vulnerability
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Medium 5.3
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Medium 5.1
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Medium 4.3
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High 7.1
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