CWE-639: Authorization Bypass Through User-Controlled Key, page 36
Filter
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.
What the weakness is: CWE-639 at MITRE
Ask an AI about CWE-639
ChatGPTClaudePerplexityGoogle AI Mode
Show the prompt
Explain CWE-639: Authorization Bypass Through User-Controlled Key and how to prevent and detect it in code. Use https://cwe.mitre.org/data/definitions/639.html and https://cve.bz/cve/cwe/639?via=ask-ai-copy for recent CVEs with this weakness. Cite the sources.Opens a third-party assistant; its answer is its own, not cve.bz's. The prompt holds only this weakness's id and public links.
- 6.5CVE-2026-5337EPSS 0.2%
During the analysis, it was identified that authenticated attackers with Subscriber-level access or higher are able to perform an Insecure Direct Object Reference (IDOR) attack. This vulnerability exists because the Frontend File Manager P…
- 5.5CVE-2026-7681EPSS 0.5%
A security vulnerability has been detected in jsbroks COCO Annotator up to 0.11.1. Affected by this vulnerability is an unknown functionality of the file backend/webserver/api/datasets.py of the component Dataset API. The manipulation of t…
- 8.1CVE-2026-2554EPSS 0.3%
The WCFM – Frontend Manager for WooCommerce along with Bookings Subscription Listings Compatible plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 6.7.25 via the 'wcfm_delete_wcfm_…
- 8.6CVE-2026-7491EPSS 0.3%
School App developed by Zyosoft has an Insecure Direct Object Reference vulnerability, allowing authenticated remote attackers to modify a specific parameter to read and modify other users' data.
- 5.3CVE-2026-7638EPSS 0.3%
The App Builder – Create Native Android & iOS Apps On The Flight plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to and including 5.6.0. This is due to missing authorization validation in the `upl…
- 2.1CVE-2026-7510EPSS 0.3%
A vulnerability was determined in OWAP DefectDojo up to 2.55.4. Affected by this vulnerability is an unknown functionality of the component Benchmark/Engagement/Product/Survey. Executing a manipulation can lead to authorization bypass. The…
- 2.1CVE-2026-7502EPSS 0.3%
A security vulnerability has been detected in LinkStackOrg LinkStack up to 4.8.6. The affected element is the function saveLink of the file app/Http/Controllers/UserController.php of the component Management Endpoint. The manipulation lead…
- 8.1CVE-2026-6542EPSS 0.2%
IBM Langflow OSS 1.0.0 through 1.8.4 could allow any user to supply a flow_id to read transaction logs and vertex build data belonging to other users, and to delete persisted vertex build data for another user's flow.
- 7.5CVE-2026-4503EPSS 0.3%
IBM Langflow Desktop 1.0.0 through 1.8.4 Langflow could allow an unauthenticated user to view other users' images due to an indirect object reference through a user-controlled key.
- 8.1CVE-2026-40600EPSS 0.2%
Chartbrew is an open-source web application that can connect directly to databases and APIs and use the data to create charts. In version 4.9.0, Chartbrew allows authenticated users with access to one project to update or delete a SharePol…
- 8.1CVE-2026-7399EPSS 0.3%
Authorization bypass through User-Controlled key vulnerability in MeWare Software Development Inc. PDKS allows Privilege Abuse. This issue affects PDKS: from V16.20200313 before VMYR_3.5.2025117.
- 7.1CVE-2026-42517EPSS 0.2%
This vulnerability exists in e-Sushrut due to the use of reversible Base64 encoding for protecting sensitive data. An authenticated attacker could exploit this vulnerability by decoding and manipulating Base64-encoded parameters in the req…
- 7.1CVE-2026-42516EPSS 0.2%
This vulnerability exists in e-Sushrut due to improper authorization checks during resource access. An authenticated attacker could exploit this vulnerability by manipulating encoded parameters in the request URL to gain unauthorized acces…
- 7.1CVE-2026-42515EPSS 0.2%
This vulnerability exists in e-Sushrut due to improper access control in resource access validation. An authenticated attacker could exploit this vulnerability by manipulating parameter in the API request URL to gain unauthorized access to…
- 7.7CVE-2026-41649EPSS 0.3%
Outline is a service that allows for collaborative documentation. The `shares.create` API endpoint starting in version 0.86.0 and prior to version 1.7.0 has an insecure direct object reference.. When both `collectionId` and `documentId` ar…
- 2.3CVE-2026-41406EPSS 0.2%
OpenClaw before 2026.3.31 contains a sender allowlist bypass vulnerability that allows remote attackers to access restricted messages. Attackers can exploit fetched quoted, root, and thread context messages to bypass sender allowlist restr…
- 9.8CVE-2026-24178EPSS 0.6%
NVIDIA NVFlare Dashboard contains a vulnerability in the user management and authentication system where an unauthenticated attacker may cause authorization bypass through user-controlled key. A successful exploit of this vulnerability may…
- 6.9CVE-2026-41372EPSS 0.3%
OpenClaw before 2026.4.2 fails to normalize trailing-dot localhost hosts in remote CDP discovery responses, allowing bypass of loopback protections. Attackers can craft hostile discovery responses returning localhost. to retarget authentic…
- 7.3CVE-2026-28747EPSS 0.2%
A weak key generation vulnerability exists in specific firmware versions of Milesight AIOT cameras allows authorization to be bypassed.
- 5.3CVE-2026-7145EPSS 0.2%
A weakness has been identified in mettle sendportal up to 3.0.1. Affected is the function destroy of the file app/Http/Controllers/Workspaces/WorkspaceInvitationsController.php of the component Invitation Handler. This manipulation of the …
- 2.1CVE-2026-7144EPSS 0.2%
A security flaw has been discovered in 1000 Projects Portfolio Management System MCA 1.0. This impacts an unknown function of the file update_passwd_process.php. The manipulation of the argument temp_user results in authorization bypass. T…
- 5.3CVE-2025-15626EPSS 0.2%
Authenticated user can bypass authorization in Ribblr - Crochet & Knitting iOS application
- 5.3CVE-2026-6810EPSS 0.3%
The Booking Calendar Contact Form plugin for WordPress is vulnerable to Insecure Direct Object Reference in all versions up to, and including, 1.2.63 via the dex_bccf_admin_int_calendar_list.inc.php file due to missing validation on a user…
- 5.3CVE-2026-2028EPSS 0.3%
The MaxiBlocks Builder plugin for WordPress is vulnerable to arbitrary media file deletion due to insufficient file ownership validation on the 'maxi_remove_custom_image_size' AJAX action in all versions up to, and including, 2.1.8. This m…
- 4.3CVE-2026-31956EPSS 0.3%
Xibo is an open source digital signage platform with a web content management system and Windows display player software. Prior to version 4.4.1, any authenticated user can manually construct a URL to preview campaigns/regions, and export …
- 8.7CVE-2026-6375EPSS 0.3%
A vulnerability in SpiceJet’s booking API allows unauthenticated users to query passenger name records (PNRs) without any access controls. Because PNR identifiers follow a predictable pattern, an attacker could systematically enumerate val…
- 8.2CVE-2026-41279EPSS 0.3%
Flowise is a drag & drop user interface to build a customized large language model flow. Prior to 3.1.0, the text-to-speech generation endpoint (POST /api/v1/text-to-speech/generate) is whitelisted (no auth) and accepts a credentialId dire…
- 7.6CVE-2026-41277EPSS 3.1%
Flowise is a drag & drop user interface to build a customized large language model flow. Prior to 3.1.0, a Mass Assignment vulnerability in the DocumentStore creation endpoint allows authenticated users to control the primary key (id) and …
- 9.8CVE-2026-41267EPSS 0.3%
Flowise is a drag & drop user interface to build a customized large language model flow. Prior to 3.1.0, an improper mass assignment (JSON injection) vulnerability in the account registration endpoint of Flowise Cloud allows unauthenticate…
- 4.7CVE-2025-66286EPSS 0.2%
An API design flaw in WebKitGTK and WPE WebKit allows untrusted web content to unexpectedly perform IP connections, DNS lookups, and HTTP requests. Applications expect to use the WebPage::send-request signal handler to approve or reject al…
- 9.3CVE-2018-25270EPSS 0.9%
ThinkPHP 5.0.23 contains a remote code execution vulnerability that allows unauthenticated attackers to execute arbitrary PHP code by invoking functions through the routing parameter. Attackers can craft requests to the index.php endpoint …
- 6.5CVE-2026-6355EPSS 0.2%
A vulnerability in the web application allows unauthorized users to access and manipulate sensitive data across different tenants by exploiting insecure direct object references. This could lead to unauthorized access to sensitive informat…
- 7.6CVE-2026-5750EPSS 0.2%
An insecure direct object reference (IDOR) vulnerability in the Fullstep V5 registration process allows authenticated users to access data belonging to other registered users through various vulnerable authenticated resources in the applic…
- 6.5CVE-2026-41127EPSS 0.2%
BigBlueButton is an open-source virtual classroom. Versions prior to 3.0.24 have a missing authorization that allows viewers to inject/overwrite captions Version 3.0.24 tightened the permissions on who is able to submit captions. No known …
- 7.2CVE-2026-5845EPSS 0.3%
An improper authorization vulnerability in scoped user-to-server (ghu_) token authorization in GitHub Enterprise Server allows an authenticated attacker to access private repositories outside the intended installation scope, which can incl…
- 5.3CVE-2026-3307EPSS 0.3%
An authorization bypass vulnerability was identified in GitHub Enterprise Server that allowed an attacker with admin access on one repository to modify the secret scanning push protection delegated bypass reviewer list on another repositor…
- 6.5CVE-2026-40907EPSS 0.3%
WWBN AVideo is an open source video platform. In versions 29.0 and prior, the endpoint `plugin/Live/view/Live_restreams/list.json.php` contains an Insecure Direct Object Reference (IDOR) vulnerability that allows any authenticated user wit…
- 7.1CVE-2026-40867EPSS 0.2%
Horilla is a free and open source Human Resource Management System (HRMS). In 1.5.0, a broken access control vulnerability in the helpdesk attachment viewer allows any authenticated user to view attachments from other tickets by changing t…
- 8.6CVE-2026-40866EPSS 0.2%
Horilla is a free and open source Human Resource Management System (HRMS). In 1.5.0, an insecure direct object reference in the employee document upload endpoint allows any authenticated user to overwrite or replace or corrupt another empl…
- 7.1CVE-2026-40865EPSS 0.2%
Horilla is a free and open source Human Resource Management System (HRMS). In 1.5.0, an insecure direct object reference in the employee document viewer allows any authenticated user to access other employees’ uploaded documents by changin…
- 9.0CVE-2026-5652EPSS 0.4%
An insecure direct object reference vulnerability in the Users API component of Crafty Controller allows a remote, authenticated attacker to perform user modification actions via improper API permissions validation.
- 7.1CVE-2026-40591EPSS 0.2%
FreeScout is a free self-hosted help desk and shared mailbox. Prior to version 1.8.214, the phone-conversation creation flow accepts attacker-controlled `customer_id`, `name`, `to_email`, and `phone` values and resolves the target customer…
- 4.3CVE-2026-40590EPSS 0.2%
FreeScout is a free self-hosted help desk and shared mailbox. Prior to version 1.8.214, the Change Customer modal exposes a “Create a new customer” flow via POST /customers/ajax with action=create. Under limited visibility, the endpoint dr…
- 7.6CVE-2026-40589EPSS 0.2%
FreeScout is a free self-hosted help desk and shared mailbox. Prior to version 1.8.214, a low-privileged agent can edit a visible customer and add an email address already owned by a hidden customer in another mailbox. The server discloses…
- 5.7CVE-2026-40570EPSS 0.2%
FreeScout is a free self-hosted help desk and shared mailbox. Prior to version 1.8.213, the `load_customer_info` action in `POST /conversation/ajax` returns complete customer profile data to any authenticated user without verifying mailbox…
- 8.8CVE-2026-39386EPSS 0.4%
Neko is a a self-hosted virtual browser that runs in Docker and uses WebRTC In versions 3.0.0 through 3.0.10 and 3.1.0 through 3.1.1, any authenticated user can immediately obtain full administrative control of the entire Neko instance (me…
- 6.5CVE-2025-66954EPSS 0.3%
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…
- 7.1CVE-2026-40896EPSS 0.2%
OpenProject is open-source, web-based project management software. Prior to version 17.3.0, a user with `manage_agendas` permission in any project can inject agenda items into meetings belonging to any other project on the instance — even …
- 2.1CVE-2026-6614EPSS 0.2%
A security flaw has been discovered in TransformerOptimus SuperAGI up to 0.0.14. Affected by this vulnerability is the function get_project/update_project/get_projects_organisation of the file superagi/controllers/project.py. The manipulat…
- 2.1CVE-2026-6613EPSS 0.2%
A vulnerability was identified in TransformerOptimus SuperAGI up to 0.0.14. Affected is the function delete_agent/stop_schedule/get_schedule_data of the file superagi/controllers/agent.py. The manipulation of the argument agent_id leads to…