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
40 results · Clear filters · Feed
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Medium 4.3CVE-2026-108924 Public exploit
getkirby Kirby Dynamic Option Generation OptionsQuery.php resolve authorization
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Medium 6.9CVE-2026-90907 Public exploit
Joomla! Core - [20260902] - Core - Unauthorized user account creation via profile.save controller in Joomla 1.5.0-5.4.8, 6.0.0-6.1.3
Joomla! Core - [20260902] - Core - Unauthorized user account creation via profile.save controller in Joomla 1.5.0-5.4.8, 6.0.0-6.1.3 - The profile.save controller did not check the login state of a user, allowing the creation of guest-level users on sites wit…
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Medium 5.4CVE-2026-102261 Public exploit
owen2345 Camaleon CMS Media Crop media_controller.rb crop authorization
A flaw has been found in owen2345 Camaleon CMS up to 2.9.2. Impacted is the function crop of the file app/controllers/camaleon_cms/admin/media_controller.rb of the component Media Crop Handler. This manipulation of the argument saved_avatar causes authorizati…
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Medium 6.1CVE-2026-73320 Public exploit
XenForo < 2.3.13 Unauthenticated Information Disclosure via Unfurl Endpoint
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Medium 6.8CVE-2026-5006 Public exploit
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Medium 5.3CVE-2026-67358 Public exploit
Joomla Extension - j2commerce.com - Download quota manipulation in J2Store 1.0.0-3.3.20, 4.0.0-4.0.20, 4.1.0-4.1.5
Joomla Extension - j2commerce.com - Download quota manipulation in J2Store 1.0.0-3.3.20, 4.0.0-4.0.20, 4.1.0-4.1.5 - An authenticated user with a valid order token could increment the download limit counter on a download record belonging to a different order.…
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Medium 6.5CVE-2026-68582 Public exploit
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Medium 6.5CVE-2026-61946 Public exploit
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Medium 6.5CVE-2026-2406 Public exploit
IDOR in Universe Software's Online Registration and Workflow Management System
Authorization bypass through User-Controlled key vulnerability in Universe Software Computer Marketing Trade and Industry Inc. Online Registration and Workflow Management System allows Exploiting Trust in Client. This issue affects Online Registration and Wor…
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Medium 4.3CVE-2026-12400 Public exploit
FlowForms <= 1.1.1 - Authenticated (Contributor+) Insecure Direct Object Reference to Arbitrary Form Modification via REST API '/flowforms/v1/forms/{id}' Endpoints
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Medium 5.3CVE-2026-49099 Public exploit
Apache Camel Salesforce: Non-Camel-prefixed Exchange header constants bypass the HTTP header filter, allowing an HTTP client to influence internal behaviour
Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection'), Authorization Bypass Through User-Controlled Key vulnerability in Apache Camel Salesforce Component. The camel-salesforce producer resolves its operation param…
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Medium 5.3CVE-2026-48206 Public exploit
Apache Camel JIRA: A set of non-Camel-prefixed Exchange header constants bypass the HTTP header filter, allowing an HTTP client to drive arbitrary JIRA issue operations using the endpoint's configured credentials
Improper Input Validation, Authorization Bypass Through User-Controlled Key vulnerability in Apache Camel JIRA component. The camel-jira producers read their operation parameters - the issue key, project key, transition id, summary, type, assignee, components…
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Medium 5.3CVE-2026-46453 Public exploit
Apache Camel: Camel-Elasticsearch-Rest-Client: Exchange header constants without the Camel prefix bypass inbound HTTP header filtering, allowing untrusted clients to override the Elasticsearch query and operation
Improper Input Validation, Authorization Bypass Through User-Controlled Key vulnerability in Apache Camel ElasticSearch Rest Client. The camel-elasticsearch-rest-client component reads several Exchange headers to control its behaviour - SEARCH_QUERY (an advan…
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Medium 5.3CVE-2026-7665 Public exploit
Essential Addons for Elementor <= 6.6.4 - Missing Authorization to Unauthenticated Information Exposure via 'load_more' AJAX Handler
The Essential Addons for Elementor – Popular Elementor Templates & Widgets plugin for WordPress is vulnerable to Information Exposure in all versions up to, and including, 6.6.4 via the ajax_load_more function due to insufficient restrictions on which posts c…
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Medium 6.3CVE-2026-8337 Public exploit
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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…
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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…
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Medium 6.9CVE-2026-35584 Public exploit
FreeScout has an Unauthenticated IDOR in Open Tracking Endpoint Allows Cross-Conversation Thread Manipulation and Enumeration
FreeScout is a free help desk and shared inbox built with PHP's Laravel framework. Prior to 1.8.212, the endpoint GET /thread/read/{conversation_id}/{thread_id} does not require authentication and does not validate whether the given thread_id belongs to the g…
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Medium 4.3CVE-2026-2461 Public exploit
Missing authorization check allows unauthorized modification of other users' comments on a board
Mattermost Plugins versions <=11.3 11.0.3 11.2.2 10.10.11.0 fail to implement authorisation checks on comment block modifications, which allows an authorised attacker with editor permission to modify comments created by other board members. Mattermost Advisor…
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Medium 5.3CVE-2025-69727 Public exploit
An Incorrect Access Control vulnerability exists in INDEX-EDUCATION PRONOTE prior to 2025.2.8. The affected components …
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Medium 5.3CVE-2026-3306 Public exploit
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An improper authorization vulnerability was identified in GitHub Enterprise Server that allowed a user with read access to a repository and write access to a project to modify issue and pull request metadata through the project. When adding an item to a proje…
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Medium 6.5CVE-2026-24134 Public exploit
StudioCMS has an Authorization Bypass Through User-Controlled Key
StudioCMS is a server-side-rendered, Astro native, headless content management system. Versions prior to 0.2.0 contain a Broken Object Level Authorization (BOLA) vulnerability in the Content Management feature that allows users with the "Visitor" role to acce…
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Medium 4.3CVE-2025-12030 Public exploit
ACF to REST API <= 3.3.4 - Insecure Direct Object Reference to Authenticated (Contributor+) ACF Field/Option Modification
The ACF to REST API plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 3.3.4. This is due to insufficient capability checks in the update_item_permissions_check() method, which only verifies that the c…
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Medium 6.5CVE-2025-61148 Public exploit
An Insecure Direct Object Reference (IDOR) vulnerability in the EduplusCampus 3.0.1 Student Payment API allows authenti…
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Medium 4.3CVE-2025-65670 Public exploit
An Insecure Direct Object Reference (IDOR) in classroomio 0.1.13 allows students to access sensitive admin/teacher endp…
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Medium 5.3CVE-2025-10493 Public exploit
Chained Quiz <= 1.3.5 - Unauthenticated Insecure Direct Object Reference via Cookie
The Chained Quiz plugin for WordPress is vulnerable to Insecure Direct Object Reference in version 1.3.4 and below via the quiz submission and completion mechanisms due to missing validation on a user controlled key. This makes it possible for unauthenticated…
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Medium 4.3CVE-2025-50340 Public exploit
An Insecure Direct Object Reference (IDOR) vulnerability was discovered in SOGo Webmail thru 5.6.0, allowing an authent…
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Medium 6.5CVE-2025-51867 Public exploit
Insecure Direct Object Reference (IDOR) vulnerability in Deepfiction AI (deepfiction.ai) thru June 3, 2025, allowing at…
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Medium 4.4CVE-2025-2301 Public exploit
IDOR in Akbim Software's Online Exam Registration
Authorization Bypass Through User-Controlled Key vulnerability in Akbim Software Online Exam Registration allows Exploitation of Trusted Identifiers. This issue affects Online Exam Registration: before 14.03.2025.
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Medium 5.3CVE-2025-53640 Public exploit
Indico vulnerable to user enumeration via API endpoint
Indico is an event management system that uses Flask-Multipass, a multi-backend authentication system for Flask. Starting in version 2.2 and prior to version 3.3.7, an endpoint used to display details of users listed in certain fields (such as ACLs) could be …
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Medium 4.3CVE-2025-5182 Public exploit
Summer Pearl Group Vacation Rental Management Platform Listing authorization
A vulnerability has been found in Summer Pearl Group Vacation Rental Management Platform up to 1.0.1 and classified as critical. This vulnerability affects unknown code of the component Listing Handler. The manipulation leads to authorization bypass. The atta…
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Medium 5.0CVE-2025-47226 Public exploit
Grokability Snipe-IT has incorrect authorization for accessing asset information
Grokability Snipe-IT before 8.1.0 has incorrect authorization for accessing asset information.
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Medium 5.4CVE-2024-44450 Public exploit
Multiple functions are vulnerable to Authorization Bypass in AIMS eCrew. The issue was fixed in version JUN23 #190.
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Medium 4.8CVE-2024-53617 Public exploit
A Cross Site Scripting vulnerability in LibrePhotos before commit 32237 allows attackers to takeover any account via up…
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Medium 6.9CVE-2024-50395 Public exploit
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Medium 5.3CVE-2024-10654 Public exploit
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Medium 4.3CVE-2024-46528 Public exploit
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Medium 5.4CVE-2024-45614 Public exploit
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Medium 6.5CVE-2023-49339 Public exploit
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Medium 5.4CVE-2021-46416 Public exploit
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