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
3,334 results · Feed
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Medium 4.3
OpenList: Search metadata/count disclosure via Non-Separator-Aware Path Check in Bleve Search
OpenList is a file list program that supports multiple storage backends. Prior to 4.2.4, the OpenList search API uses a non-separator-aware strings.HasPrefix comparison as a path containment authorization check when authorizing globally indexed Bleve results …
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Medium 6.0
Temporal Server internal completion callbacks are not bound to their namespace, allowing cross-namespace changes to Scheduler V2 schedule state
Temporal Server does not bind internal completion callbacks to the namespace that attached them, which allows an authenticated caller with write permission in one namespace to alter Scheduler V2 schedule state in another namespace. The callback address tempor…
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Critical 9.9
obsidian-tc tokens can access arbitrary configured vaults
obsidian-tc is a governed, agent-ready Model Context Protocol server for Obsidian vaults. Prior to 1.3.1, tool dispatch does not compare the caller-controlled input.vault value with the vault bound to the caller, the JSON Web Token (JWT) has no vault claim, a…
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High 8.1
SurrealDB before 3.3.0 Cross-Tenant Access via USE Statement
SurrealDB before 3.3.0 allows cross-tenant access because the SurrealQL USE statement switches a session to any namespace/database without checking that the caller's authenticated level covers it. Authenticated namespace, database, or record users can switch …
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High 8.1
SurrealDB before 3.3.0 Cross-Tenant Access via Surreal-NS/Surreal-DB Headers and RPC use
SurrealDB before 3.3.0 does not check the caller-selected namespace or database against the level at which a namespace- or database-level system user authenticated, allowing cross-tenant access. An authenticated attacker can set the Surreal-NS/Surreal-DB head…
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Medium 6.5
Admidio 4.3.2 through 4.3.17 and 5.0.0 before 5.0.15 Cross-Organization Access Control Bypass via members_assignment.php
Admidio 4.3.2 through 4.3.17 and 5.0.0 before 5.0.15 contains a broken access control vulnerability that allows role administrators to assign users to roles in other organizations. Attackers can submit crafted assign requests to members_assignment.php with a …
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Medium 4.3
Parse Server before 8.6.93 and 9.0.0 before 9.10.1-alpha.13 protectedFields Bypass via Relation Count Query
Parse Server before 8.6.93 and 9.0.0 before 9.10.1-alpha.13 does not enforce identity-scoped protectedFields (authenticated, role, or per-user groups) on count queries using the $relatedTo operator, exposing the size of protected Relation fields. An authentic…
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Medium 4.3
Open WebUI before 0.11.4 Missing Authorization via Backend Index on Model Routes
Open WebUI before 0.11.4 contains a missing authorization vulnerability that allows authenticated users to reach disabled model provider backends by supplying an explicit backend index. Attackers can pass the index as a path segment or query parameter on Olla…
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Medium 4.3
Open WebUI 0.9.6 before 0.11.4 Information Disclosure via Unscoped Directory ID
Open WebUI from 0.9.6 before 0.11.4 contains an authorization flaw where the knowledge base file listing does not verify that a supplied directory_id belongs to the requested knowledge base. Users with read access to any knowledge base can supply a retained f…
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Low 3.1
Quay: repository auto-prune policy uuid idor in quay api
A flaw was found in Quay. An authenticated attacker can access repository auto-prune configurations from other namespaces, leading to unauthorized information disclosure. This issue occurs because the application does not properly enforce namespace scoping wh…
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Medium 6.4
Quay: build trigger uuid idor in quay api
A flaw was found in Red Hat Quay. The build trigger management application programming interface (API) fails to verify whether a requested trigger belongs to the specified repository. An authenticated user with administrative access to any repository can view…
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High 7.4
Thirty bees through 1.7.0 Account Takeover via PasswordController Guest Checkout
Thirty bees through 1.7.0 contains an authentication bypass vulnerability in PasswordController::resolveCustomer() that allows unauthenticated attackers to reset registered customers' passwords using guest account tokens. Attackers can place a guest order wit…
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Medium 6.3
QloApps through 1.7.0 Insecure Direct Object Reference in Back-Office AJAX Handlers
QloApps through 1.7.0 contains an insecure direct object reference vulnerability in back-office AJAX handlers of AdminOrdersController, AdminBookingDocumentController, AdminProductsController and AdminAddHotelController that skip htl_access hotel checks. Hote…
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Medium 4.3
jshERP through 3.6 Authorization Bypass via User-Controlled Warehouse IDs
jshERP through 3.6 contains an authorization bypass vulnerability that allows authenticated users to read data from unassigned warehouses by supplying depotId or depotIds request parameters. When depot_flag warehouse restriction is enabled, attackers can name…
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Medium 4.3
MoguBlog through 6.2 Broken Access Control via networkDisk moveFile and edit
MoguBlog through 6.2 contains a broken access control vulnerability that allows authenticated administrators to move or rename other administrators' network-disk files by supplying their file paths. Attackers can send crafted requests to POST /networkDisk/mov…
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Medium 5.4
MoguBlog through 6.2 IDOR Allows Deleting Other Administrators' Network-Disk Files
MoguBlog through 6.2 contains an insecure direct object reference vulnerability that allows authenticated administrators to delete other administrators' files via POST /networkDisk/deleteFile and batchDeleteFile. Attackers can supply another administrator's f…
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Medium 4.3
MoguBlog through 6.2 Broken Access Control via /networkDisk/getFileList
MoguBlog through 6.2 contains an insecure direct object reference vulnerability that allows authenticated administrators to list other administrators' network-disk files via POST /networkDisk/getFileList. Attackers can query the endpoint, which filters only b…
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Medium 4.3
TDuck survey form through 6.0 Authorization Bypass via User-Controlled Theme ID in POST /user/form/theme/save
TDuck survey form through 6.0 contains an insecure direct object reference vulnerability in the saveFormTheme handler that allows authenticated users to overwrite other users' form themes. Attackers whose form has no theme can submit another form's sequential…
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Medium 6.5
lamp-cloud through 5.10.1 IDOR via /anyone/appendix/listFileByBizId
lamp-cloud through 5.10.1 contains an insecure direct object reference vulnerability that allows authenticated users to list other business objects' file attachments by supplying an arbitrary bizId to the listFileByBizId endpoint. Attackers can retrieve file …
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Medium 6.5
lamp-cloud through 5.10.1 IDOR via /anyone/file/findUrlById
lamp-cloud through 5.10.1 contains an insecure direct object reference vulnerability that allows authenticated users to obtain storage URLs for other users' files by supplying arbitrary file ids. Attackers can send another user's file ids to the findUrlById h…
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High 7.1
TDuck survey form through 6.0 Authorization Bypass via User-Controlled Submission IDs in POST /user/form/data/delete/{formKey}
TDuck survey form through 6.0 contains an insecure direct object reference vulnerability that allows authenticated users to delete other users' form submissions by supplying arbitrary submission ids. Attackers can place their own formKey in the path and itera…
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Medium 4.3
TDuck survey form through 6.0 Authorization Bypass via User-Controlled Form Key in POST /user/form/item/batch/create
TDuck survey form through 6.0 contains a broken access control vulnerability that allows authenticated users to add fields to other users' forms via POST /user/form/item/batch/create. Attackers can submit an array whose first element references their own form…
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High 8.1
Authorization Bypass Through User-Controlled Key vulnerability affecting Tuleap Enterprise Edition from 17.0 through 17.5
An Authorization Bypass Through User-Controlled Key vulnerability affecting Tuleap Enterprise Edition from 17.0 through 17.5 could allow an attacker with tracker administration rights on one tracker to update or delete fields of all the trackers on the instan…
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Medium 6.5
WordPress Event post plugin <= 6.1.1 - Insecure Direct Object References (IDOR) vulnerability
Authorization Bypass Through User-Controlled Key vulnerability in NOUS Ouvert Utile et Simple Event post event-post allows Exploiting Incorrectly Configured Access Control Security Levels.This issue affects Event post: from n/a through 6.1.1.
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Medium 4.3
Hotel Booking <= 3.8 - Subscriber+ Booking Order PII Disclosure via IDOR
The Hotel Booking WordPress plugin through 3.8 does not verify that a booking record belongs to the user requesting it, allowing any authenticated user such as a Subscriber to read other customers' booking details, including their name, email address, phone n…
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Medium 6.5
Foreman: api filter lookup ignores a search-limited filter permission
A flaw has been found in **permission filters** in the **foreman** package. The API loads a filter by its identifier and does not apply the search limit on the caller's permission. A low-privileged network attacker or user must already be allowed to delete fi…
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Medium 4.3
ZKTeco BioTime Employee REST API employees authorization
A vulnerability has been found in ZKTeco BioTime 9.5.6 Build 20260130.3206. This vulnerability affects unknown code of the file /personnel/api/employees/ of the component Employee REST API. The manipulation leads to authorization bypass. The attack may be ini…
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Medium 4.3
ZKTeco BioTime Biometric Data Endpoint finger_data authorization
A flaw has been found in ZKTeco BioTime 9.5.6 Build 20260130.3206. This affects an unknown part of the file /iclock/finger_data/ of the component Biometric Data Endpoint. Executing a manipulation of the argument emp_code can lead to authorization bypass. The …
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Medium 4.3
JeecgBoot through 3.9.5 IDOR via /airag/api/getChatVariable Username Parameter
JeecgBoot through 3.9.5 contains an insecure direct object reference vulnerability in AiragBaseApiController that allows authenticated users to read other users' AI chat variables via the username parameter. Attackers can send POST requests to /airag/api/getC…
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Medium 4.2
iFlytek Astron Agent through 1.1.2 Authorization Bypass via /workflow/v1/resume Endpoint
iFlytek Astron Agent through 1.1.2 contains an insecure direct object reference vulnerability that allows authenticated applications to resume other applications' paused workflows by supplying their event_id to POST /workflow/v1/resume. Attackers can predict …
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Medium 5.3
APIPark through 1.9.7-beta IDOR via application authorization endpoints
APIPark through 1.9.7-beta contains an insecure direct object reference vulnerability that allows authenticated users to read other applications' credentials by supplying a foreign authorization UUID. Attackers with authorization-view permission on one applic…
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Medium 4.2
UnicomAI Wanwu through 0.6.5 Authorization Bypass via /v1/appspace/app/key AppKey Minting
UnicomAI Wanwu through 0.6.5 contains an authorization bypass vulnerability that allows authenticated users to mint AppKeys bound to other users' MCP servers via POST /v1/appspace/app/key. Attackers supplying a victim's MCP server UUID with appType mcpserver …
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Medium 5.4
Wanwu before 0.6.3 IDOR AppKey Deletion via DELETE /v1/appspace/app/key
Wanwu before 0.6.3 contains an insecure direct object reference vulnerability that allows any authenticated enabled user to delete other users' legacy AppKeys by supplying a numeric apiId. Attackers can iterate sequential key IDs against DELETE /v1/appspace/a…
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High 8.1
UnicomAI Wanwu before 0.6.3 IDOR via DELETE /v1/appspace/app
UnicomAI Wanwu before 0.6.3 contains an insecure direct object reference vulnerability that allows authenticated low-privileged users to delete other tenants' agent or RAG applications by supplying their appId. Attackers can send requests to DELETE /v1/appspa…
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High 8.2
Easy!Appointments through 1.6.0 Authorization Bypass via booking/register Endpoint
Easy!Appointments through 1.6.0 contains an authorization bypass vulnerability in Booking::register() that allows unauthenticated attackers to modify any appointment by supplying an appointment id without its hash. Attackers can enumerate sequential appointme…
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Medium 4.2
Lightdash through 2.556.0 Authorization Bypass via Personal Access Token Deletion
Lightdash through 2.556.0 contains an authorization bypass vulnerability that allows authenticated organization members to delete other users' personal access tokens by supplying their UUID. Attackers can send DELETE requests to the personal-access-tokens rou…
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Medium 5.3
Sylius through 2.3.0 Authorization Bypass via Shop API Product-Review Endpoint
Sylius through 2.3.0 contains an authorization bypass vulnerability that allows unauthenticated attackers to read unmoderated and rejected product reviews because the AcceptedExtension filter is not applied to the item operation. Attackers can enumerate seque…
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Medium 4.3
LibreNMS through 26.9.1.1 Authorization Bypass via Smokeping Graph auth.inc.php
LibreNMS through 26.9.1.1 contains an authorization bypass vulnerability in includes/html/graphs/smokeping/auth.inc.php that checks the src probe device instead of the rendered target device. Restricted users permitted on a probe device can request smokeping_…
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Medium 4.3
BerriAI LiteLLM Spend Tracking spend_management_endpoints.py ui_view_session_spend_logs authorization
A flaw has been found in BerriAI LiteLLM up to 1.95.0. Affected by this issue is the function ui_view_session_spend_logs of the file litellm/proxy/spend_tracking/spend_management_endpoints.py of the component Spend Tracking. Executing a manipulation of the ar…
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Low 2.7
Envira Gallery < 1.16.2 - Author+ IDOR via Shortcode
The Envira Gallery WordPress plugin before 1.16.2 does not verify that a user is authorized to read a gallery before rendering it, allowing authors to embed and expose other users' non-public gallery metadata to unauthenticated visitors.