Weakness (CWE)
CWE-863: Incorrect Authorization
The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check.
How to prevent it (5 mitigations)
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Architecture and Design
Divide the product into anonymous, normal, privileged, and administrative areas. Reduce the attack surface by carefully mapping roles with data and functionality. Use role-based access control (RBAC) [REF-229] to enforce the roles at the appropriate boundaries.
Note that this approach may not protect against horizontal authorization, i.e., it will not protect a user from attacking others with the same role.
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Architecture and Design
Ensure that access control checks are performed related to the business logic. These checks may be different than the access control checks that are applied to more generic resources such as files, connections, processes, memory, and database records. For example, a database may restrict access for medical records to a specific database user, but each record might only be intended to be accessible to the patient and the patient's doctor [REF-7].
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Architecture and Design
Use a vetted library or framework that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid.
For example, consider using authorization frameworks such as the JAAS Authorization Framework [REF-233] and the OWASP ESAPI Access Control feature [REF-45].
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Architecture and Design
For web applications, make sure that the access control mechanism is enforced correctly at the server side on every page. Users should not be able to access any unauthorized functionality or information by simply requesting direct access to that page.
One way to do this is to ensure that all pages containing sensitive information are not cached, and that all such pages restrict access to requests that are accompanied by an active and authenticated session token associated with a user who has the required permissions to access that page.
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System Configuration, Installation
Use the access control capabilities of your operating system and server environment and define your access control lists accordingly. Use a "default deny" policy when defining these ACLs.
Source: MITRE CWE-863
4,299 results · Feed
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Medium 4.7
David-Crty Databasement Scheduled Restore SaveScheduledRestoreRequest.php authorization
A vulnerability has been found in David-Crty Databasement up to 1.8.1. Affected by this vulnerability is an unknown functionality of the file app/Http/Requests/Api/V1/SaveScheduledRestoreRequest.php of the component Scheduled Restore. Such manipulation of the…
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Medium 5.4
Coder 2.0.0 before 2.34.8 Authorization Bypass via User-Level ACL in RBAC Policy
Coder from 2.0.0 before 2.34.8 contains an incorrect authorization vulnerability in the acl_allow rule of coderd/rbac/policy.rego, which does not verify organization membership for per-user ACL entries, and organization member removal does not scrub those ent…
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Medium 5.3
Coder 2.30.0 before 2.34.8 Cross-Organization File Disclosure via DownloadFile RPC
Coder from 2.30.0 before 2.34.8 contains an authorization bypass vulnerability in the provisioner daemon DownloadFile gRPC handler that allows authenticated provisioner daemons to download other organizations' cached Terraform module archives. Attackers with …
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Medium 5.4
Vikunja 0.13.0 before 2.7.0 Incorrect Authorization in Link Share Deletion
Vikunja 0.13.0 before 2.7.0 contains an incorrect authorization vulnerability that allows project members with Write permission to delete admin-tier link shares because the delete permission check reads an unloaded share object. Attackers can send DELETE requ…
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Medium 6.5
Vikunja 0.22.0 before 2.7.0 Improper Access Revocation via Webhooks
Vikunja 0.22.0 before 2.7.0 contains an improper access revocation vulnerability that allows removed collaborators to keep receiving project data through webhooks they created. Former collaborators keep receiving task titles and descriptions through their web…
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Medium 5.4
Vikunja 1.0.0-rc0 before 2.7.0 Cross-Tenant Task Position Writes via Saved Filter Creation
Vikunja from 1.0.0-rc0 before 2.7.0 contains an improper authorization vulnerability in RecalculateTaskPositions that allows authenticated users with zero accessible projects to write task_positions rows for all tasks instance-wide. Attackers can delete their…
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Medium 4.3
phpMyFAQ before 4.1.9 and 4.2.0-alpha before 4.2.0-beta Draft FAQ Attachment Disclosure via attachment.php
phpMyFAQ before 4.1.9 and 4.2.0-alpha before 4.2.0-beta contains an improper authorization vulnerability in attachment.php that fails to verify whether an attachment's parent FAQ is published or visible to the requester. Authenticated users with the dlattachm…
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Low 2.7
phpMyFAQ 4.0.0 before 4.1.9 Incorrect Authorization via news update API
phpMyFAQ from 4.0.0 before 4.1.9 contains an incorrect authorization vulnerability that allows delegated admins lacking the editnews right to modify news by calling PUT /admin/api/news/update, which checks NEWS_DELETE instead of NEWS_EDIT. Attackers holding a…
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High 7.6
Disabled Sunshine clients can bypass revocation with a derived client certificate
Sunshine is a self-hosted game stream host for Moonlight. From 2026.329.165800 until 2026.906.222525, Sunshine accepted any client certificate that chained to a stored paired-client certificate, but it did not require the presented certificate to be the exact…
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Medium 4.3
Arcane: Environment access token bypasses the admin-required authorization gate on `/api/debug/pprof`
Arcane is an interface for managing Docker containers, images, networks, and volumes. Prior to 2.11.0, AuthMiddleware.managerAuth accepts X-Arcane-Agent-Token credentials and the environment-token branch calls next before the AdminRequired option is evaluated…
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High 8.1
Tandoor Recipes: Private recipe authorization bypass via /api/step/ - read and modify another Space member's private recipe content
Tandoor Recipes is an application for managing recipes, planning meals, and building shopping lists. Prior to 2.6.12, StepViewSet and IngredientViewSet filter only by active Space and use role-level CustomIsUser checks instead of the private-recipe owner or s…
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Medium 4.3
Exrick XBoot through 3.3.4 Data-Scope Bypass via openDataFilter Parameter
Exrick XBoot through 3.3.4 contains an authorization bypass vulnerability that allows authenticated users to evade role data-scope restrictions by sending openDataFilter=false. Attackers can append this parameter to the department getByParentId or search endp…
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Medium 4.3
Steedos Platform through 3.0.15-beta.51 Cross-Tenant Information Disclosure via Reports API
Steedos Platform through 3.0.15-beta.51 contains an authorization bypass vulnerability that allows authenticated users to read other tenants' report definitions by querying the reports object. Because objectql's callAdapter skips space filtering for enable_sp…
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High 7.2
HestiaCP before 1.10.5 Protected Admin Bypass via Cron Job Creation
HestiaCP before 1.10.5 contains an authorization bypass vulnerability that allows non-ROOT_USER administrators to perform write actions while impersonating the protected ROOT_USER account. Attackers can log in via the loginas parameter and POST to /add/cron/,…
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High 8.8
Incorrect authorization in the Arm Cortex-R82 MPU port in FreeRTOS-Kernel
Incorrect authorization in the Arm Cortex-R82 (Armv8-R AArch64) MPU port in FreeRTOS-Kernel V11.3.0 and V11.3.1 might allow an unprivileged task on MPU-enabled builds to read and write privileged kernel memory outside the regions assigned to it, via a buffer …
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High 8.8
MariaDB: GRANT PROXY with empty password incorrectly checks grantor's privileges
MariaDB server is a community developed fork of MySQL server. From 10.6.1 until 10.6.28, 10.11.19, 11.4.13, 11.8.9, 12.3.3, and 13.0.2, the GRANT PROXY statement treats an IDENTIFIED clause with an empty password as though authentication were not specified, c…
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High 8.2
Mailu: Domain managers can allow themselves to spoof on other hosted domains they should not control
Mailu is a mail server distributed as a set of Docker images. Prior to f05aeb8322e2f61096af6b089d61ba6f40587d96, domain managers can enable spoofing for hosted domains they do not control. A potentially malicious domain administrator enables spoofing for anot…
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Medium 6.5
Incorrect authorization in add-on properties in Devolutions Server 2026.3.8.0 and earlier allows an authenticated user …
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Medium 4.3
Improper access control in asset contact password in Devolutions Server 2026.3.8.0 and earlier allows an authenticated …
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Medium 6.8
Missing Authorization in NordVPN for Windows
NordVPN for Windows allows local attackers to stop unprotected Windows system services and change their startup type to Manual via named pipes. The NordVPN user-mode application allows a low-privileged attacker to act as a trusted process and connect to the n…
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Medium 4.3
Private team metadata disclosure via the team search API
Mattermost versions 11.10.x <= 11.10.0, 11.7.x <= 11.7.9, 11.9.x <= 11.9.1, 11.8.x <= 11.8.5 fail to properly restrict private teams from public team search results, which allows an authenticated user without permission to list private teams to disclose the I…
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Medium 5.0
Mattermost invitation tokens not bound to invited email address allowing unauthorized team and private channel access
Mattermost versions 11.10.x <= 11.10.0, 11.7.x <= 11.7.9, 11.9.x <= 11.9.1, 11.8.x <= 11.8.5 fail to validate the invited recipient's email address when redeeming team and guest invitation tokens, which allows an authenticated attacker to join a team or gain …
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Medium 4.4
Mattermost fails to reject OAuth application sessions in account type switch, allowing account takeover via bearer token
Mattermost versions 11.10.x <= 11.10.0, 11.7.x <= 11.7.9, 11.9.x <= 11.9.1, 11.8.x <= 11.8.5 fail to reject OAuth application sessions in the account type switch endpoint, which allows an attacker with a valid OAuth bearer token for a target user to permanent…
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Medium 6.5
Mattermost guest account privilege escalation via member roles API
Mattermost versions 11.10.x <= 11.10.0, 11.7.x <= 11.7.9, 11.9.x <= 11.9.1, 11.8.x <= 11.8.5 fail to validate the combination of guest and admin scheme roles which allows an authenticated attacker to escalate a guest account to team or channel admin via a cra…
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Medium 6.5
WSP MCP <= 2.9.5 - Authenticated (Subscriber+) Sensitive Information Disclosure via Broken Access Control to 'wsp_get_posts' MCP Tool
The WSP MCP AI Agents Connector plugin for WordPress is vulnerable to Sensitive Information Disclosure in versions up to, and including, 2.9.5. This is due to the wsp_get_posts MCP tool being registered with an empty capability requirement while the MCP endpo…
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Low 2.7
Smush < 4.3.4 - Admin+ Network-Wide Plugin Settings Update on Multisite
The Smush WordPress plugin before 4.3.4 does not restrict changes to a network-wide access setting to network administrators, allowing an administrator of a single site on a multisite network to change it for the entire network.
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High 8.6
Wheels 4.0.0 through 4.1.2 exposes password-less development tools under /wheels/* to remote clients when enablePublicC…
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High 7.8
Z.ai ZCode v3.11.2.6792 was discovered to automatically establish connections with MCP servers declared inside a reposi…
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High 7.1
ClassroomIO through 1.0.0 Incorrect Authorization via Lesson Update and Delete Routes
ClassroomIO through 1.0.0 contains an incorrect authorization vulnerability in the PUT and DELETE /:lessonId lesson routes that allows any course member, including students, to modify lessons. Authenticated students can supply arbitrary lesson ids to change t…
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High 8.8
ThinkCMF through 8.0.1 Incorrect Authorization in Admin REST API
ThinkCMF through 8.0.1 contains an incorrect authorization vulnerability in RestAdminBaseController that allows restricted backend administrators to call every admin REST API endpoint because Auth::check() fails open when no admin_api rule exists. Attackers w…
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Low 3.7
OxiCloud 0.9.1 through 0.9.3 Incorrect Authorization via Share Ring Cookie
OxiCloud 0.9.1 through 0.9.3 contains an incorrect authorization vulnerability that allows anonymous visitors to keep share access after password protection is added. Attackers holding an existing oxi_shares share-ring cookie can request content via GET /api/…
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High 8.6
Idira Secrets Manager (Self-Hosted): Improper Authorization in REST API
An authorization flaw in Idira Conjur version 13.9.0 allows an authenticated user with limited privileges to perform unauthorized actions on a policy branch. Under specific circumstances, an attacker could potentially leverage this to retrieve unauthorized se…
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Critical 9.1
OpenNMS REST authorization bypass via non-canonical HTTP method
An authorization bypass vulnerability exists in the REST API of multiple versions of OpenNMS Meridian and Horizon. The /rest/** Spring Security filter chains authorize requests with intercept-url rules that name the HTTP method as an uppercase token, compare …
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High 8.6
Discourse ActivityPub: Fix inbound actor validation and apply outbound request SSRF hardening
Discourse ActivityPub adds ActivityPub support to Discourse. Prior to commit 1c8518b0f2abdf31cbea3e0b242f74d8994a9ba5, inbound ActivityPub processing does not sufficiently verify that the actor authenticated by the signed request matches the Activity actor an…
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High 7.1
OPNsense: Direct comma-separated user privileges bypass OPNsense MVC read-only write protection
OPNsense is a FreeBSD based firewall and routing platform. Prior to 26.1.11, OPNsense\Core\ACL::hasPrivilege() appends a directly assigned comma-separated <priv> value as one string and then uses an exact comparison when checking user-config-readonly. A user …
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High 7.5
In `api-gateway` versions till `1.7.3`, The default rate-limit key resolver, `ClientIpKeyResolver`, derives the per-cli…
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Medium 6.9
Unauthenticated authorization bypass in ConstraintSecurityHandler - HTTP method-omission matched by substring
In Eclipse Jetty, across various versions of `jetty-security`, and `jetty-eeN-security`, and `jetty-eeN-servlet`, the Jakarta Spec constraints defined as `http-method-omission` can be bypassed by using substrings of the defined HTTP Methods.
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Medium 6.9
In Eclipse Jetty, across various versions of `jetty-security`, and `jetty-eeN-security`, two or more security constrain…
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Critical 9.3
An unauthenticated client may access certain protected resources when using EthereumAuthenticator if the request path c…
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High 8.8
In Eclipse Jetty, across various versions of `jetty-annotations`, and `jetty-eeN-annotations`, the Jakarta Spec authori…