The CGM CLININET application uses direct, sequential object identifiers "MessageID" without proper authorization checks. By modifying the parameter in the GET request, an attacker can access messages and attachments belonging to other users.

On versions before 2.1.4, after a regular user successfully logs in, they can manually make a request using the authorization token to view everyone's user flink information, including executeSQL and config. Mitigation: all users should upgrade to 2.1.4

hoppscotch is an open source API development ecosystem. Prior to version 2026.2.0, the `userCollection` GraphQL query accepts an arbitrary collection ID and returns the full collection data — including title, type, and the serialized `data` field containing HTTP requests with headers and potentially secrets — to any authenticated user, without verifying that the requesting user owns the collection. This is an Insecure Direct Object Reference (IDOR) caused by a missing authorization check that exists on every other operation in the same resolver. Version 2026.2.0 fixes the issue.

Authorization Bypass Through User-Controlled Key vulnerability with user privileges in ArgusTech BILGER allows Exploitation of Trusted Identifiers.This issue affects BILGER: before 2.4.6.

An Insecure Direct Object Reference in Google Cloud's Looker allowed metadata exposure across authenticated Looker users sharing the same LookML model.

The OKLOK (3.1.1) mobile companion app for Fingerprint Bluetooth Padlock FB50 (2.3) allows remote attackers to submit API requests using authenticated but unauthorized tokens, resulting in IDOR issues. A remote attacker can use their own token to make unauthorized API requests on behalf of arbitrary user IDs. Valid and current user IDs are trivial to guess because of the user ID assignment convention used by the app. A remote attacker could harvest email addresses, unsalted MD5 password hashes, owner-assigned lock names, and owner-assigned fingerprint names for any range of arbitrary user IDs.

OpenEMR is a free and open source electronic health records and medical practice management application. In versions up to and including 8.0.0, the eye exam (eye_mag) view loads data by `form_id` (or equivalent) without verifying that the form belongs to the current user’s patient/encounter context. An authenticated user can access or edit any patient’s eye exam by supplying another form ID; in some flows the session’s active patient may also be switched. A fix is available on the `main` branch of the OpenEMR GitHub repository.

Biscom Secure File Transfer (SFT) 5.0.1050 through 5.1.1067 and 6.0.1000 through 6.0.1003 allows Insecure Direct Object Reference (IDOR) by an authenticated sender because of an error in a file-upload feature. This is fixed in 5.1.1068 and 6.0.1004.

OpenEMR is a free and open source electronic health records and medical practice management application. Prior to version 8.0.0, the document controller’s `patient_picture` context serves the patient’s photo by document ID or patient ID without verifying that the current user is authorized to access that patient. An authenticated user with document ACL can supply another patient’s ID and retrieve their photo. Version 8.0.0 fixes the issue.

OpenEMR is a free and open source electronic health records and medical practice management application. Prior to version 8.0.0, the Layout-Based Form (LBF) printable view accepts `formid` and `visitid` (or `patientid`) from the request and does not verify that the form belongs to the current user’s authorized patient/encounter. An authenticated user with LBF access can enumerate form IDs and view or print any patient’s encounter forms. Version 8.0.0 fixes the issue.

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 misused to dump basic user details (such as name, affiliation and email) in bulk. Version 3.3.7 fixes the issue. Owners of instances that allow everyone to create a user account, who wish to truly restrict access to these user details, should consider restricting user search to managers. As a workaround, it is possible to restrict access to the affected endpoints (e.g. in the webserver config), but doing so would break certain form fields which could no longer show the details of the users listed in those fields, so upgrading instead is highly recommended.

Sentry is a developer-first error tracking and performance monitoring tool. Versions prior to 26.1.0 have a cross-organization Insecure Direct Object Reference (IDOR) vulnerability in Sentry's GroupEventJsonView endpoint. Version 26.1.0 patches the issue.

Insecure Direct Object Reference (IDOR) vulnerability in Deepfiction AI (deepfiction.ai) thru June 3, 2025, allowing attackers to chat with the LLM using other users' credits via sensitive information gained by the /browse/stories endpoint.

OpenEMR is a free and open source electronic health records and medical practice management application. Prior to version 8.0.0, the Message Center accepts the URL parameter `show_all=yes` and passes it to `getPnotesByUser()`, which returns all internal messages (all users’ notes). The backend does not verify that the requesting user is an administrator before honoring `show_all=yes`. The "Show All" link is also visible to non-admin users. As a result, any authenticated user can view the entire internal message list by requesting `messages.php?show_all=yes`. Version 8.0.0 patches the issue.

MarkUs is a web application for the submission and grading of student assignments. Prior to 2.9.1, the courses/<:course_id>/assignments/<:assignment_id>/submissions/html_content accepted a select_file_id parameter to serve SubmissionFile objects containing a record of files submitted by students. This parameter was not correctly scoped to the requesting user, allowing users access arbitrary submission file contents by id. This vulnerability is fixed in 2.9.1.

The allows any authenticated user to join a private group due to a missing authorization check on a function

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 access draft content created by Editor/Admin/Owner users. Version 0.2.0 patches the issue.

CVAT is an open source interactive video and image annotation tool for computer vision. Versions 2.2.0 through 2.39.0 have no validation during the import process of a project or task backup to check that the filename specified in the query parameter refers to a TUS-uploaded file belonging to the same user. As a result, if an attacker with a CVAT account and a `user` role knows the filenames of other users' uploads, they could potentially access and steal data by creating projects or tasks using those files. This issue does not affect annotation or dataset TUS uploads, since in this case object-specific temporary directories are used. Users should upgrade to CVAT 2.40.0 or a later version to receive a patch. No known workarounds are available.

Insecure Direct Object Reference (IDOR) vulnerability in BOLD Workplanner in versions prior to 2.5.25 (4935b438f9b), consisting of a  misuse of the general enquiry web service.

Insecure Direct Object Reference (IDOR) vulnerability in BOLD Workplanner in versions prior to 2.5.25 (4935b438f9b), consisting of a lack of adequate validation of user input, allowing an authenticated user to access to basic employee details using unauthorised internal identifiers.

Insecure Direct Object Reference (IDOR) vulnerability in BOLD Workplanner in versions prior to 2.5.25 (4935b438f9b), consisting of a lack of adequate validation of user input, allowing an authenticated user to access to calendar details using unauthorised internal identifiers.

Insecure Direct Object Reference (IDOR) vulnerability in BOLD Workplanner in versions prior to 2.5.25 (4935b438f9b), consisting of a lack of adequate validation of user input, allowing an authenticated user to access to the dates of the current contract details using unauthorised internal identifiers.

Insecure Direct Object Reference (IDOR) vulnerability in BOLD Workplanner in versions prior to 2.5.25 (4935b438f9b), consisting of a lack of adequate validation of user input, allowing an authenticated user to access to functional contract details using unauthorised internal identifiers.

Insecure Direct Object Reference (IDOR) vulnerability in BOLD Workplanner in versions prior to 2.5.25 (4935b438f9b), consisting of a lack of adequate validation of user input, allowing an authenticated user to access to time records details using unauthorised internal identifiers.

Insecure Direct Object Reference (IDOR) vulnerability in BOLD Workplanner in versions prior to 2.5.25 (4935b438f9b), consisting of a lack of adequate validation of user input, allowing an authenticated user to access to basic contract details using unauthorised internal identifiers.

Insecure Direct Object Reference (IDOR) vulnerability in BOLD Workplanner in versions prior to 2.5.25 (4935b438f9b), consisting of a lack of adequate validation of user input, allowing an authenticated user to access to planning counter details using unauthorised internal identifiers.

Insecure Direct Object Reference (IDOR) vulnerability in BOLD Workplanner in versions prior to 2.5.25 (4935b438f9b), consisting of a lack of adequate validation of user input, allowing an authenticated user to access to the list of permissions using unauthorised internal identifiers.

Improper Access Control (IDOR) in the Graylog API, version 2.2.3, which occurs when modifying the user ID in the URL. An authenticated user can access other user's profiles without proper authorization checks. Exploiting this vulnerability allows valid users of the system to be listed and sensitive third-party information to be accessed, such as names, email addresses, internal identifiers, and last activity. The endpoint 'http://<IP>:12900/users/<my_user>' does not implement object-level authorization validations.

Insecure direct object reference (IDOR) vulnerability in Sergestec's Exito v8.0. This vulnerability allows an attacker to access data belonging to other customers through the 'id' parameter in '/admin/ticket_a4.php'.

Authorization Bypass Through User-Controlled Key vulnerability in Anadolu Hayat Emeklilik Inc. AHE Mobile allows Privilege Abuse.This issue affects AHE Mobile: from 1.9.7 before 1.9.9.

IBM Cloud Pak for Business Automation 24.0.0 through 24.0.0 IF005 and 24.0.1 through 24.0.1 IF002 could allow an authenticated user to view sensitive user and system information due to an indirect object reference through a user-controlled key.

DNN (formerly DotNetNuke) is an open-source web content management platform (CMS) in the Microsoft ecosystem. In limited configurations, registered users may be able to craft a request to enumerate/access some portal files they should not have access to. This vulnerability is fixed in 9.13.8.

Authorization Bypass Through User-Controlled Key vulnerability in Themeum Tutor LMS tutor allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Tutor LMS: from n/a through <= 3.9.4.

The Metform Elementor Contact Form Builder for WordPress is vulnerable to Information Disclosure via the 'mf_thankyou' shortcode in versions up to, and including, 3.3.1. This allows authenticated attackers, with subscriber-level capabilities or above to obtain sensitive information about form submissions, including payment status, and transaction ID.

Axios Cache Interceptor is a cache interceptor for axios. Prior to version 1.11.1, when a server calls an upstream service using different auth tokens, axios-cache-interceptor returns incorrect cached responses, leading to authorization bypass. The cache key is generated only from the URL, ignoring request headers like `Authorization`. When the server responds with `Vary: Authorization` (indicating the response varies by auth token), the library ignores this, causing all requests to share the same cache regardless of authorization. Server-side applications (APIs, proxies, backend services) that use axios-cache-interceptor to cache requests to upstream services, handle requests from multiple users with different auth tokens, and upstream services replies on `Vary` to differentiate caches are affected. Browser/client-side applications (single user per browser session) are not affected. Services using different auth tokens to call upstream services will return incorrect cached data, bypassing authorization checks and leaking user data across different authenticated sessions. After `v1.11.1`, automatic `Vary` header support is now enabled by default. When server responds with `Vary: Authorization`, cache keys now include the authorization header value. Each user gets their own cache.

An Insecure Direct Object References (IDOR) in the component /getStudemtAllDetailsById?studentId=XX of Serosoft Solutions Pvt Ltd Academia Student Information System (SIS) EagleR v1.0.118 allows attackers to access sensitive user information via a crafted API request.

A vulnerability exists in the Buffalo Link Station version 1.85-0.01 that allows unauthenticated or guest-level users to enumerate valid usernames and their associated privilege roles. The issue is triggered by modifying a parameter within requests sent to the /nasapi endpoint.

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 account takeover is not possible, admin email addresses and other metadata can be exposed, increasing the risk of phishing, credential stuffing, and social engineering. This vulnerability is fixed in 1.8.0-beta.27.

The Omnipress plugin for WordPress is vulnerable to Information Exposure in all versions up to, and including, 1.5.4 via the megamenu block due to insufficient restrictions on which posts can be included. This makes it possible for authenticated attackers, with Contributor-level access and above, to extract data from password protected, private, or draft posts that they should not have access to.

The events-calendar-pro WordPress plugin before 6.4.0.1, The Events Calendar WordPress plugin before 6.4.0.1 does not prevent users with at least the contributor role from leaking details about events they shouldn't have access to. (e.g. password-protected events, drafts, etc.)

A vulnerability in infiniflow/ragflow version RAGFlow-0.13.0 allows for partial account takeover via insecure data querying. The issue arises from the way tenant IDs are handled in the application. If a user has access to multiple tenants, they can manipulate their tenant access to query and access API tokens of other tenants. This vulnerability affects the following endpoints: /v1/system/token_list, /v1/system/new_token, /v1/api/token_list, /v1/api/new_token, and /v1/api/rm. An attacker can exploit this to access other tenants' API tokens, perform actions on behalf of other tenants, and access their data.

An Insecure Direct Object Reference (IDOR) vulnerability in the EduplusCampus 3.0.1 Student Payment API allows authenticated users to access other students personal and financial records by modifying the 'rec_no' parameter in the /student/get-receipt endpoint.

An Insecure Direct Object Reference vulnerability in Citadel WebCit through 926 allows authenticated remote attackers to read someone else's emails via the msg_confirm_move template. NOTE: this was reported to the vendor in a publicly archived "Multiple Security Vulnerabilities in WebCit 926" thread.

In lunary-ai/lunary before version 1.6.3, an improper access control vulnerability exists where a user can access prompt data of another user. This issue affects version 1.6.2 and the main branch. The vulnerability allows unauthorized users to view sensitive prompt data by accessing specific URLs, leading to potential exposure of critical information.

The WP Customer Area WordPress plugin before 8.2.1 does not properly validates user capabilities in some of its AJAX actions, allowing any users to retrieve other user's account address.

An issue in ZKTeko BioTime v.8.5.4 and before allows a remote attacker to obtain sensitive information via the Authentication & Authorization component

Authorization Bypass Through User-Controlled Key vulnerability in Blaz K. Rate my Post – WP Rating System.This issue affects Rate my Post – WP Rating System: from n/a through 3.4.1.

Ellucian Banner 9.17 allows Insecure Direct Object Reference (IDOR) via a modified bannerId to the /StudentSelfService/ssb/studentCard/retrieveData endpoint.

Mattermost fails to perform authorization checks in the /plugins/playbooks/api/v0/runs/add-to-timeline-dialog endpoint of the Playbooks plugin allowing an attacker to get limited information about a post if they know the post ID

Insecure Direct Object References (IDOR) in EMSigner v2.8.7 allow attackers to gain unauthorized access to application content and view sensitive data of other users via manipulation of the documentID and EncryptedDocumentId parameters.