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
3,334 results · Feed
-
Medium 4.3
Nextcloud Tables app allowed users to view columns metadata information of any table
Nextcloud Tables allows you to create your own tables with individual columns. Prior to 0.8.7 and 0.9.4, authenticated users were able to view meta data of columns in other tables of the Tables app by modifying the numeric ID in a request. This vulnerability …
-
Medium 6.3
Nextcloud Tables is missing an ownership check which allows moving columns into tables of other users
Nextcloud Tables allows you to create your own tables with individual columns. Prior to 0.8.6 and 0.9.3, a malicious user was able to create their own table and then move a column to a victims table. This vulnerability is fixed in 0.8.6 and 0.9.3.
-
Medium 4.3
Nextcloud Tables app share information not limited to relevant users
Nextcloud Tables allows you to create your own tables with individual columns. Prior to 0.8.9, 0.9.6, and 1.0.1, the information which table (numeric ID) is shared with which groups or users and the respective permissions was not limited to privileged users. …
-
Low 3.3
Nextcloud Calendar app allowed booking appointments without the generated token
Nextcloud Calendar is a calendar app for Nextcloud. Prior to 4.7.19, 5.5.6, and 6.0.1, the calendar app allowed blindly booking appointments with a squential ID without known the appointment token. This vulnerability is fixed in 4.7.19, 5.5.6, and 6.0.1.
-
Medium 4.3
Nextcloud Server users can modify tags on files that do not belong to them
Nextcloud Server is a self hosted personal cloud system. In Nextcloud Server and Enterprise Server prior to 31.0.1, non-privileged users can modify tags on files they should not have access to via bulk tagging. This vulnerability is fixed in 31.0.1.
-
High 8.3
The SolisCloud API suffers from a Broken Access Control vulnerability, specifically an Insecure Direct Object Reference…
-
Low 2.2
Insecure Direct Object Reference vulnerability in Medtronic CareLink Network which allows an authenticated attacker wit…
-
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…
-
High 7.1
Insecure Direct Object Reference (IDOR) Allows Unauthorized Deletion of User Collections
RomM (ROM Manager) allows users to scan, enrich, browse and play their game collections with a clean and responsive interface. Prior to 4.4.1 and 4.4.1-beta.2, an Authenticated User can delete collections belonging to other users by directly sending a DELETE …
-
Medium 5.3
RomM Insecure Direct Object Reference (IDOR) Allows Unauthorized Access to Private Collections
RomM (ROM Manager) allows users to scan, enrich, browse and play their game collections with a clean and responsive interface. Prior to 4.4.1 and 4.4.1-beta.2, users can read private collections / smart collections belonging to other users by directly accessi…
-
Medium 4.3
HUSKY – Products Filter Professional for WooCommerce <= 1.3.7.2 - Authenticated (Subscriber+) Insecure Direct Object Reference via 'woof_add_query/woof_remove_query'
The HUSKY – Products Filter Professional for WooCommerce plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 1.3.7.2 via the "woof_add_query" and "woof_remove_query" functions due to missing validation …
-
Low 2.7
Timetable and Event Schedule by MotoPress < 2.4.16 - Contributor+ Event Disclosure via IDOR
The Timetable and Event Schedule by MotoPress WordPress plugin before 2.4.16 does not verify a user has access to a specific event when duplicating, leading to arbitrary event disclosure when to users with a role as low as Contributor.
-
Medium 6.9
Authorization bypass in GAMS from GAMS Development Corp.
Vulnerability in the access control system of the GAMS licensing system that allows unlimited valid licenses to be generated, bypassing any usage restrictions. The validator uses an insecure checksum algorithm; knowing this algorithm and the format of the lic…
-
Medium 4.3
Grav vulnerable to Information Disclosure via IDOR in Grav Admin Panel
Grav is a file-based Web platform. Prior to 1.8.0-beta.27, there is an IDOR (Insecure Direct Object Reference) vulnerability in the Grav CMS Admin Panel which allows low-privilege users to access sensitive information from other accounts. Although direct acco…
-
Critical 9.8
StreamTube Core <= 4.78 - Unauthenticated Arbitrary User Password Change
The StreamTube Core plugin for WordPress is vulnerable to Arbitrary User Password Change in versions up to, and including, 4.78. This is due to the plugin providing user-controlled access to objects, letting a user bypass authorization and access system resou…
-
High 7.5
Uniong｜WebITR - Authorization Bypass
WebITR developed by Uniong has an Authentication Bypass vulnerability, allowing authenticated remote attackers to log into the system as any user by modifying a specific parameter. Attackers must first obtain a user ID to exploit this vulnerability.
-
Medium 5.3
QODE Wishlist for WooCommerce <= 1.2.7 - Unauthenticated Insecure Direct Object Reference to Wishlist Update
The QODE Wishlist for WooCommerce plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 1.2.7 via the 'qode_wishlist_for_woocommerce_wishlist_table_item_callback' function due to missing validation on a u…
-
High 7.5CVE-2025-65672 Public exploit
Insecure Direct Object Reference (IDOR) in classroomio 0.1.13 allows unauthorized share and invite access to course set…
-
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…
-
Medium 4.3
Frontend File Manager Plugin <= 23.4 - Insecure Direct Object Reference to Authenticated (Subscriber+) Arbitrary File Renaming
The Frontend File Manager Plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 23.4. This is due to the plugin not validating file ownership before processing file rename requests in the '/wpfm/v1/file-r…
-
Medium 5.3
Admin and Customer Messages After Order for WooCommerce: OrderConvo <= 14 - Missing Authorization to Unauthenticated Information Disclosure
The Admin and Customer Messages After Order for WooCommerce: OrderConvo plugin for WordPress is vulnerable to unauthorized access of data due to a missing capability check on the `get_order_by_id()` function in all versions up to, and including, 14. This make…
-
Medium 6.5
Wishlist for WooCommerce <= 1.1.3 - Insecure Direct Object Reference to Unauthenticated Wishlist Manipulation
The Wishlist for WooCommerce plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 1.1.3 via several functions in class-th-wishlist-frontend.php due to missing validation on a user controlled key. This ma…
-
Medium 4.3
Admin and Customer Messages After Order for WooCommerce: OrderConvo <= 14 - Missing Authorization to Unauthenticated User Impersonation in Order Messages
The Admin and Customer Messages After Order for WooCommerce: OrderConvo plugin for WordPress is vulnerable to Missing Authorization in all versions up to, and including, 14. This is due to a flawed permission check in the REST API permission callback that ret…
-
Medium 5.3
Primakon Pi Portal 1.0.18 API endpoints responsible for retrieving object-specific or filtered data (e.g., user profile…
-
Medium 4.3
Insecure Direct Object Reference (IDOR) in the Track order function in PHPGURUKUL Online Shopping Portal 2.1 allows inf…
-
Medium 4.3
ELEX WordPress HelpDesk & Customer Ticketing System <= 3.2.9 - Authenticated (Subscriber+) Insecure Direct Object Reference via 'eh_crm_ticket_single_view_client'
The ELEX WordPress HelpDesk & Customer Ticketing System plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 3.2.9 via the 'eh_crm_ticket_single_view_client' due to missing validation on a user controlle…
-
Medium 5.4
Return Refund and Exchange For WooCommerce <= 4.5.5 - Insecure Direct Object Reference to Authenticated (Subscriber+) Arbitrary Order Message Read
The Return Refund and Exchange For WooCommerce plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 4.5.5 via the wps_rma_fetch_order_msgs() due to missing validation on a user controlled key. This makes…
-
Medium 4.3
Return Refund and Exchange For WooCommerce <= 4.5.5 - Insecure Direct Object Reference to Authenticated (Subscriber+) Refund Request Cancellation
The Return Refund and Exchange For WooCommerce plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 4.5.5 via the 'wps_rma_cancel_return_request' AJAX endpoint due to missing validation on a user control…
-
High 8.1
Rallly Improper Authorization Allows Reopening of Any Finalized Poll via Public pollId
Rallly is an open-source scheduling and collaboration tool. Prior to version 4.5.4, an improper authorization vulnerability allows any authenticated user to reopen finalized polls belonging to other users by manipulating the pollId parameter. This can disrupt…
-
High 8.1
Rallly Broken Authorization: Any User Can Pause or Resume Any Poll via Poll ID Manipulation
Rallly is an open-source scheduling and collaboration tool. Prior to version 4.5.4, an authorization flaw in the poll management feature allows any authenticated user to pause or resume any poll, regardless of ownership. The system only uses the public pollId…
-
Medium 6.5
Rallly Has an IDOR Vulnerability in Participant Rename Function Allows Unauthorized Modification of Other Users’ Names
Rallly is an open-source scheduling and collaboration tool. Prior to version 4.5.4, an Insecure Direct Object Reference (IDOR) vulnerability allows any authenticated user to change the display names of other participants in polls without being an admin or the…
-
Medium 6.5
Rallly Improper Authorization in Comment Endpoint Allows User Impersonation
Rallly is an open-source scheduling and collaboration tool. Prior to version 4.5.4, an improper authorization flaw in the comment creation endpoint allows authenticated users to impersonate any other user by altering the authorName field in the API request. T…
-
High 7.1
Rallly Improper Authorization in Comment Deletion Endpoint Allows Unauthorized Comment Removal
Rallly is an open-source scheduling and collaboration tool. Prior to version 4.5.4, an authorization flaw in the comment deletion API allows any authenticated user to delete comments belonging to other users, including poll owners and administrators. The endp…
-
High 8.1
Rallly Has an IDOR Vulnerability in Participant Deletion Endpoint Allows Unauthorized Removal of Poll Participants
Rallly is an open-source scheduling and collaboration tool. Prior to version 4.5.4, an insecure direct object reference (IDOR) vulnerability allows any authenticated user to delete arbitrary participants from polls without ownership verification. The endpoint…
-
Critical 9.1
Rallly Has Unauthorized Poll Finalization via Insecure Direct Object Reference (IDOR)
Rallly is an open-source scheduling and collaboration tool. Prior to version 4.5.4, an Insecure Direct Object Reference (IDOR) vulnerability exists in the poll finalization feature of the application. Any authenticated user can finalize a poll they do not own…
-
Medium 6.5
Rallly Has Unauthorized Poll Duplication via Insecure Direct Object Reference (IDOR)
Rallly is an open-source scheduling and collaboration tool. Prior to version 4.5.4, an Insecure Direct Object Reference (IDOR) vulnerability in the poll duplication endpoint (/api/trpc/polls.duplicate) allows any authenticated user to duplicate polls they do …
-
Medium 6.5
Rallly Has an IDOR Vulnerability in Vote Update Endpoint Allows Unauthorized Manipulation of Participant Votes
Rallly is an open-source scheduling and collaboration tool. Prior to version 4.5.4, an insecure direct object reference (IDOR) vulnerability allows any authenticated user to modify other participants’ votes in polls without authorization. The backend relies s…
-
Medium 5.0
Insecure Direct Object Reference (IDOR) vulnerability in the Management Console of affected versions of BlackBerry AtHoc.
An Insecure Direct Object Reference (IDOR) vulnerability in the Management Console of BlackBerry® AtHoc® (OnPrem) version 7.21 could allow an attacker to potentially gain unauthorized knowledge about other organizations hosted on the same Interactive Warning …
-
Medium 5.3
YITH WooCommerce Wishlist <= 4.10.0 - Unauthenticated Insecure Direct Object Reference to Unauthenticated Wishlist Rename
The YITH WooCommerce Wishlist plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 4.10.0 via the REST API endpoint and AJAX handler due to missing validation on user-controlled keys. This makes it possi…
-
Medium 5.4
Post Type Switcher <= 4.0.0 - Insecure Direct Object Reference to Authenticated (Author+) Post Type Change
The Post Type Switcher plugin for WordPress is vulnerable to Insecure Direct Object Reference in versions up to, and including, 4.0.0 due to missing validation on a user controlled key. This makes it possible for authenticated attackers, with Author-level acc…