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
1,015 results · Clear filters · Feed
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High 8.6
Authorization Bypass Through User-Controlled Key in Prospero Flow CRM contact save and vCard export
Authorization Bypass Through User-Controlled Key in the contact management component in Roskus Prospero Flow CRM before 5.4.8 allows authenticated users of any company to blindly overwrite the contact data of another company and to download that contact's per…
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High 8.7
Missing Authorization in Prospero Flow CRM permission save endpoint allows privilege escalation
Missing Authorization in the permission management component in Roskus Prospero Flow CRM before 5.2.1 allows any authenticated user to grant any role, including their own, the complete set of application permissions via a crafted POST request to the permissio…
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High 7.5
OpenSignLabs opensignserver - Broken Object Level Authorization
A broken object-level authorization vulnerability in OpenSignLabs opensignserver through 2.37.0 allows an unauthenticated remote attacker to read complete contract records via the getDocument Parse cloud function. The function fetches documents using useMaste…
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High 8.8
PraisonAI has Cross-Workspace IDOR and Privilege Escalation via Platform API
PraisonAI is a multi-agent teams system. Versions prior to 0.1.4 of the PraisonAI Platform API have two authorization failures that together break workspace isolation. The service layer for issues and projects performs global primary-key lookups without check…
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High 8.5
Decidim: JWT-backed authentication can be replayed across organizations
Decidim is a participatory democracy framework. Prior to 0.31.5 and in 0.32.0.rc1 before 0.32.0.rc2, JWT-backed API authentication is not bound to the organization selected by the current host, allowing a JWT issued for one tenant to be replayed against anoth…
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High 8.1
Insecure direct object reference in Strands Agents Tools memory tool namespace isolation
Insecure direct object reference in the mongodb_memory, elasticsearch_memory, and mem0_memory tools in Amazon Strands Agents Tools before 0.8.3 might allow remote authenticated users to access, modify, or delete memories belonging to other tenants by influenc…
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High 7.5
Payment Plugins for PayPal WooCommerce < 2.0.20 - Unauthenticated Payment Bypass via Reuse of a Completed PayPal Order
The Payment Plugins for PayPal WooCommerce WordPress plugin before 2.0.20 does not have proper authorization checks on a REST endpoint, allowing unauthenticated users to bypass payments
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High 7.5
Integrate PhonePe with WooCommerce <= 1.2.1 - Unauthenticated Payment Bypass via Transaction ID Reuse
The Integrate PhonePe with WooCommerce WordPress plugin through 1.2.1 does not validate that a verified payment transaction belongs to the order being marked as paid, nor does it verify the authenticity of its payment-completion request, allowing unauthentica…
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High 8.8
Authorization Bypass Through User-Controlled Key in eScriptorium
Authorization bypass in the Line, LineTranscription, VirtualCollection, tag and process API endpoints in Scripta/eScriptorium through 26.04.1 allows a remote authenticated user to read, modify and delete other users' transcription content via primary keys sup…
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High 7.5
WordPress Formidable Forms Signature Online Contract Automation plugin <= 2.0.1 - Insecure Direct Object References (IDOR) vulnerability
Unauthenticated Insecure Direct Object References (IDOR) in Formidable Forms Signature Online Contract Automation <= 2.0.1 versions.
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High 7.1
Langflow OSS is affected by arbitrary code execution in custom component validation and trusted code enforcement
IBM Langflow OSS 1.0.0 through 1.10.3 contain an authorization bypass vulnerability in the MemoryComponent that allows authenticated users to access chat history of other users via session_id collision. The MemoryComponent.retrieve_messages and store_message …
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High 8.2
Crater - Cross-Company IDOR on Notes via Missing Company-Ownership Check in NotePolicy
Crater's NotePolicy checks only a blanket Bouncer ability (manage-all-notes / view-all-notes) with no company-ownership comparison, unlike InvoicePolicy and other sibling policies which additionally verify ->hasCompany(->company_id). Any authenticated user of…
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High 8.2
Crater - Missing Tenant-Ownership Check in CustomerPolicy Allows Cross-Company Customer Data Theft and Deletion
Crater isolates data per company_id, and its Invoice/Estimate/Payment/Expense policies enforce both a Bouncer ability check and ->hasCompany(->company_id). CustomerPolicy's view/update/delete methods omit the company-ownership check entirely, checking only th…
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High 8.3
Flowise: Broken Access Control in Stripe Subscription Endpoints Allows Cross-Tenant Billing Manipulation
Flowise is a drag & drop user interface to build a customized large language model flow. Prior to 3.1.3, several organization billing endpoints in packages/server/src/enterprise/routes/organization.route.ts and packages/server/src/enterprise/controllers/organ…
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High 8.8
Flowise: Unauthenticated Property Injection into Flow Execution Context via Ungated `overrideConfig` Spread in Prediction API
Flowise is a drag & drop user interface to build a customized large language model flow. Prior to 3.1.3, the unauthenticated POST /api/v1/prediction/:id endpoint accepted an overrideConfig object and unconditionally spread it into internal flowConfig and flow…
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High 8.5
Flowise: Unauthenticated OAuth2 Refresh Enables Non-Blind SSRF and Secret Exfiltration
Flowise is a drag & drop user interface to build a customized large language model flow. Prior to 3.1.3, the OAuth2 token refresh endpoint POST /api/v1/oauth2-credential/refresh/:credentialId is unauthenticated by design and performs a server-side HTTP reques…
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High 7.1
better-auth passkey before 1.4.0 IDOR via delete-passkey
better-auth passkey versions before 1.4.0 contain an insecure direct object reference vulnerability in the passkey deletion endpoint that allows authenticated users to delete arbitrary passkeys by ID. Attackers with valid sessions can submit crafted requests …
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High 7.1
@better-auth/stripe before 1.6.21 Authorization Bypass via Organization Subscription
@better-auth/stripe versions >= 1.4.11 and < 1.6.21, and >= 1.7.0-beta.0 and < 1.7.0-beta.10, contain an authorization bypass in organization subscription actions. The middleware validates the organization ID taken from the request query string against the au…
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High 8.3
better-auth SCIM 1.5.0 before 1.7.0-beta.4 Authorization Bypass
better-auth SCIM versions from 1.5.0 before 1.7.0-beta.4 fail to bind non-organization SCIM providers to their creator by default, allowing authenticated users to manage other users' providers. Attackers can regenerate SCIM bearer tokens, invalidate legitimat…
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High 7.1
Coturn: MOBILITY-TICKET session-resume authorization bypass allows cross-user TURN allocation takeover
Coturn is a free open source implementation of TURN and STUN Server. Prior to 4.15.0, a server using --mobility authenticates a resumed REFRESH request with the resuming user's credentials but does not verify that identity against the original allocation owne…
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High 7.5
Sylius Mollie Plugin: Payment status forgery via the payment webhook
Sylius Mollie Plugin provides Mollie payment integration for Sylius applications. Prior to 2.2.8, 3.2.4, and 3.3.1, Sylius Mollie Plugin's POST /{_locale}/update-payment payment webhook accepts attacker-controlled id and orderId parameters but does not verify…
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High 7.1
Langflow is affected by exposed credentials due to multiple unauthenticated and insufficiently authorized API endpoints
IBM Langflow OSS 1.0.0 through 1.10.1 allows authenticated users to access and manipulate other users' build jobs through improper access control on log retrieval and unauthenticated build endpoints.
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High 8.1
foreUP customer REST API allows unauthenticated endpoint access
A vulnerability in the foreUP customer REST API allows any authenticated, low-privilege customer to access an endpoint that returns the records of other users without checking that the caller owns the data associated with that record.
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High 8.1
Julep Insecure Direct Object Reference via GET /executions/{execution_id}
Julep contains an insecure direct object reference vulnerability in the get_execution_details endpoint that allows authenticated tenants to read another tenant's execution data. Attackers can supply arbitrary execution_id values to retrieve sensitive executio…
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High 7.5
Eventin < 4.1.16 - Unauthenticated Payment Bypass via Order Status Manipulation
The Eventin WordPress plugin before 4.1.16 does not properly authorize order creation and accepts an attacker-supplied order status, allowing unauthenticated users to create orders marked as paid without completing any payment.
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High 7.5
An Insecure Direct Object Reference (IDOR) in the Employee Compensation View function of Infor Global HR v11.24.10.01.3…
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High 8.8
SuperPlane < 0.27.0 Broken Object Level Authorization via CanvasService gRPC
SuperPlane before 0.27.0 contains a broken object-level authorization vulnerability in the CanvasService gRPC handlers that allows authenticated users with viewer-level access to one organization to access resources belonging to other organizations by supplyi…
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High 8.8
Nebula Mesh: Web UI lacks ownership checks, enabling cross-operator access to hosts and networks (read, block, delete)
Nebula Mesh is a self-hosted control plane for the Slack Nebula mesh VPN. In versions 0.3.5 and below, the web UI (/ui/*) does not apply the per-operator CA scoping employed by the JSON API. This was partially addressed by GHSA-598g-h2vc-h5vg, but the changes…
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High 7.5
WordPress Paid Member Subscriptions plugin <= 3.0.7 - Insecure Direct Object References (IDOR) vulnerability
Subscriber Insecure Direct Object References (IDOR) in Paid Member Subscriptions <= 3.0.7 versions.
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High 7.4
WordPress Hide My WP Ghost plugin <= 7.0.06 - 2FA Bypass vulnerability
Subscriber Broken Authentication in Hide My WP Ghost <= 7.0.06 versions.
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High 7.7
Virt-cdi-operator: containerized-data-importer: cdi.kubevirt.io:view aggregated clusterrole grants create on datavolumes/source, allowing unauthorized pvc clone
In containerized-data-importer (CDI), the aggregated cdi.kubevirt.io:view ClusterRole, intended to provide read-only access to CDI resources, includes a rule granting create on the datavolumes/source subresource. CDI's DataVolume clone authorization accepts t…
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High 8.1
Poweradmin: Broken access control (IDOR): any zone owner can modify DNS records in zones they do not own
## Affected software - Product: Poweradmin (web front-end for PowerDNS) - Version tested: master, commit 7f28c3a97 (also reachable in the 4.x release line — the record-edit code is the same) - Component: record editing (web UI) - Vulnerability type: Broken Ac…
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High 7.1
sysPass 3.2.11 Missing Authorization via PublicLinkController Account Decryption
sysPass through version 3.2.11 contains a missing authorization vulnerability that allows authenticated users with the PUBLICLINK_CREATE profile flag to trigger unauthorized decryption and persistent storage of any vault account's password by exploiting the a…
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High 8.3
sysPass 3.2.11 Missing Object-Level Authorization via JSON-RPC API
sysPass through version 3.2.11 contains a missing object-level authorization vulnerability in the JSON-RPC API that allows API token holders to enumerate account metadata, overwrite passwords, and delete accounts across the entire vault without per-account ac…
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High 8.1
sysPass 3.2.11 Insecure Direct Object Reference via AccountFileController
sysPass through version 3.2.11 contains an insecure direct object reference vulnerability that allows any authenticated attacker to access account file attachments belonging to accounts they do not have ACL permissions for by exploiting missing authorization …
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High 8.7
Shopper: Multiple data integrity and disclosure issues in admin Livewire components
Shopper is a Headless e-commerce Admin Panel. Prior to 2.8.0, three related defects on admin Livewire components allowed data tampering, sensitive data disclosure, and stored XSS. First, several Livewire components in the admin panel exposed Eloquent model id…
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High 8.8
CyberPanel IncBackups IDOR via Sequential Backup ID
CyberPanel through 1.9.1, fixed in commit b198460, contains an insecure direct object reference (IDOR) vulnerability in the IncBackups application's incremental-backup handlers (deleteBackup, fetchRestorePoints, and restorePoint) that allows authenticated pan…
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High 8.8CVE-2026-65013 Public exploit
Onlook tRPC Insecure Direct Object Reference via multiple procedures
Onlook through 0.2.32, fixed in commit 423e2e9, contains a broken object level authorization vulnerability that allows authenticated attackers to access and manipulate other users' resources by supplying arbitrary UUID values to tRPC API procedures including …
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High 7.7
n8n before 1.123.64, 2.29.8, and 2.30.1 Privilege Escalation via SSO Instance-Role
n8n versions before 1.123.64, 2.29.8, and 2.30.1 contain a privilege escalation vulnerability in Enterprise SSO instance-role provisioning. The provisioning path maps an IdP-asserted role claim to an n8n global role but does not prevent assignment of the glob…
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High 7.1
Authorization Bypass Through User-Controlled Key in Kibana Leading to Unauthorized Information Disclosure and Case Attachment Integrity Compromise
Authorization Bypass Through User-Controlled Key (CWE-639) in Kibana can lead to unauthorized information disclosure and case attachment integrity compromise via Privilege Abuse (CAPEC-122). An inconsistency in Kibana's file access authorization logic allows …