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
4,308 results · Feed
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Medium 5.1
Unauthorized host creation via configuration.import API by low-privilege user with write permissions
An authenticated Zabbix user (User role) with template/host write permissions is able to create objects via the configuration.import API. This can lead to confidentiality loss by creating unauthorized hosts. Note that the User role is normally not sufficient …
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Medium 4.3
Sensitive information disclosure due to improper access control. The following products are affected: Acronis Cyber Pro…
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Medium 4.3
Unauthorized data access due to insufficient access control validation. The following products are affected: Acronis Cy…
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Medium 4.3
Unauthorized report deletion due to insufficient access control. The following products are affected: Acronis Cyber Pro…
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Medium 4.3
Unauthorized modification of settings due to insufficient authorization checks. The following products are affected: Ac…
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Medium 4.3
Unauthorized resource manipulation due to improper authorization checks. The following products are affected: Acronis C…
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Medium 4.4
Information disclosure and manipulation due to improper authorization checks. The following products are affected: Acro…
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Medium 6.5
Sensitive information disclosure due to improper authorization checks. The following products are affected: Acronis Cyb…
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Medium 4.3
Unauthorized resource manipulation due to improper authorization checks. The following products are affected: Acronis C…
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High 8.1
OpenClaw < 2026.2.2 - Authorization Bypass via /approve Chat Command
OpenClaw versions prior to 2026.2.2 contain an authorization bypass vulnerability where clients with operator.write scope can approve or deny exec approval requests by sending the /approve chat command. The /approve command path invokes exec.approval.resolve …
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Critical 9.8
OpenClaw Nextcloud Talk < 2026.2.6 - Allowlist Bypass via actor.name Display Name Spoofing
OpenClaw's Nextcloud Talk plugin versions prior to 2026.2.6 accept equality matching on the mutable actor.name display name field for allowlist validation, allowing attackers to bypass DM and room allowlists. An attacker can change their Nextcloud display nam…
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Critical 9.9CVE-2026-28466 Public exploit
OpenClaw < 2026.2.14 - Remote Code Execution via Node Invoke Approval Bypass
OpenClaw versions prior to 2026.2.14 contain a vulnerability in the gateway in which it fails to sanitize internal approval fields in node.invoke parameters, allowing authenticated clients to bypass exec approval gating for system.run commands. Attackers with…
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High 7.5
OpenClaw < 2026.2.14 - Privilege Escalation in Slack Slash Command Handler via Direct Messages
OpenClaw versions prior to 2026.2.14 contain a privilege escalation vulnerability in the Slack slash-command handler that incorrectly authorizes any direct message sender when dmPolicy is set to open (must be configured). Attackers can execute privileged slas…
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High 7.5
OliveTin: Unauthenticated Action Termination via KillAction When Guests Must Login
OliveTin gives access to predefined shell commands from a web interface. Prior to version 3000.11.0, OliveTin allows an unauthenticated guest to terminate running actions through KillAction even when authRequireGuestsToLogin: true is enabled. Guests are corre…
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High 7.0
Improper Scope Enforcement in OAuth client_credentials Flow Allows Read-Only API Key to Escalate to Full Access
Incorrect Authorization vulnerability in hexpm hexpm/hexpm ('Elixir.HexpmWeb.API.OAuthController' module) allows Privilege Escalation. An API key created with read-only permissions (domain: "api", resource: "read") can be escalated to full write access under …
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High 8.1
Org.keycloak/keycloak-services: improper enforcement of disabled identity provider in identitybrokerservice (authentication bypass)
A security flaw in the IdentityBrokerService.performLogin endpoint of Keycloak allows authentication to proceed using an Identity Provider (IdP) even after it has been disabled by an administrator. An attacker who knows the IdP alias can reuse a previously ge…
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Low 2.3
In affected versions of Octopus Server it was possible to create a new API key from an existing access token resulting …
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High 8.3
Vaultwarden: Collection Management Operations Allowed Without `manage` Verification for Manager Role
Vaultwarden is an unofficial Bitwarden compatible server written in Rust, formerly known as bitwarden_rs. Prior to version 1.35.4, when a Manager has manage=false for a given collection, they can still perform several management operations as long as they hav…
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High 8.3
Vaultwarden: Privilege Escalation via Bulk Permission Update to Unauthorized Collections by Manager
Vaultwarden is an unofficial Bitwarden compatible server written in Rust, formerly known as bitwarden_rs. Prior to version 1.35.4, there is a privilege escalation vulnerability via bulk permission update to unauthorized collections by Manager. This issue has …
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Medium 5.5
Dell Device Management Agent (DDMA), versions prior to 26.02, contain an Incorrect Authorization vulnerability. A low p…
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Medium 5.3
Deletion of passwords via RestApi
A logic error in the remove_password() function in Checkmk GmbH's Checkmk versions <2.4.0p23, <2.3.0p43, and 2.2.0 (EOL) allows a low-privileged user to cause data loss.
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Medium —
OpenClaw's Zalo group sender allowlist bypass permits unauthorized GROUP dispatch
A missing group-sender authorization check in the Zalo plugin allowed unauthorized `GROUP` messages to enter agent dispatch paths in configurations intended to restrict group traffic. ## Impact When Zalo group handling was configured with allowlist-style cont…
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High —
OpenClaw's non-default autoAllowSkills setting could bypass on-miss exec prompt
### Summary In `openclaw` versions up to and including `2026.2.22-2`, a non-default exec-approval configuration could allow a skill-name collision to bypass an `ask=on-miss` prompt. When `autoAllowSkills=true`, a path-scoped executable such as `./skill-bin` c…
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Medium —
OpenClaw's owner-only gateway tool access checks were incomplete in specific authenticated DM flows
## Summary In authenticated non-owner DM sessions, a narrow tool-invocation path could reach broader-than-intended owner-only gateway actions. ## Impact This requires an authenticated non-owner sender in a DM session and a specific tool invocation path. No un…
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High —
OpenClaw's Telegram message_reaction authorization bypass allows unauthorized system-event injection
A missing sender-authorization check in Telegram `message_reaction` handling allowed unauthorized users to trigger reaction-derived system events. ## Affected Packages / Versions - Package: `openclaw` (npm) - Introduced: `2026.2.17` - Affected: `>= 2026.2.17`…
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High 8.6
Google Cloud Build Comment Control Bypass
An improper authorization vulnerability in GitHub Trigger Comment Control in Google Cloud Build prior to 2026-1-26 allows a remote attacker to execute arbitrary code in the build environment. This vulnerability was patched on 26 January 2026, and no customer …
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Medium —
OpenClaw: Node exec approvals could be replayed across nodes
## Summary `exec.approval` requests for `host=node` were not explicitly bound to the target `nodeId`, so an approval intended for one node could be replayed for a different node under the same operator-controlled gateway fleet. ## Impact An operator approval …
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Medium —
OpenClaw has an unauthorized sender bypass in its stop triggers and /models command authorization
### Summary Unauthorized senders could trigger two command paths without sender authorization checks: 1. stop-like natural-language abort triggers 2. `/models` command output ### Impact An unauthorized sender could disrupt active sessions and view model/auth …
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Medium 5.7
ClipBucket v5 has IDOR in Collection Item Management
ClipBucket v5 is an open source video sharing platform. Prior to version 5.5.3 #59, collection item operations are vulnerable to authorization flaws, allowing a normal authenticated user to modify another user’s collection items. This affects both add item (/…
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High 8.2
NestJS 11.1.13 - Lack of data validation allowing authentication/authorization bypass
A NestJS application using @nestjs/platform-fastify can allow bypass of authentication/authorization middleware when Fastify path-normalization options are enabled. This issue affects nest.Js: 11.1.13.
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Medium 5.0
Foreman: satellite: graphql api permission bypass leads to information disclosure
n authorization flaw in Foreman's GraphQL API allows low-privileged users to access metadata beyond their assigned permissions. Unlike the REST API, which correctly enforces access controls, the GraphQL endpoint does not apply proper filtering, leading to an …
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Critical 9.9CVE-2026-28363 Public exploit
OpenClaw's tools.exec.safeBins sort long-option abbreviation bypass can skip exec approval in allowlist mode
In OpenClaw before 2026.2.23, tools.exec.safeBins validation for sort could be bypassed via GNU long-option abbreviations (such as --compress-prog) in allowlist mode, leading to approval-free execution paths that were intended to require approval. Only an exa…
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High 7.1
Zulip Vulnerable to Modification of Payment Method (Stripe Default Card) by Non-Billing Users
Zulip is an open-source team collaboration tool. Prior to commit bf28c82dc9b1f630fa8e9106358771b20a0040f7, the API endpoint for creating a card update session during an upgrade flow was accessible to users with only organization member privileges. When the as…
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Low 1.2
Discourse Vulnerable to Unauthorized Topic Creation in Staff-Only Categories via Topic Timer publish_to_category
Discourse is an open source discussion platform. Prior to versions 2025.12.2, 2026.1.1, and 2026.2.0, TL4 users can publish topics into staff-only categories via the `publish_to_category` topic timer, bypassing authorization checks. Versions 2025.12.2, 2026.1…
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Low 1.3
Discourse doesn't prevent moderators from exporting user Chat DMs
Discourse is an open source discussion platform. Prior to versions 2025.12.2, 2026.1.1, and 2026.2.0, moderators could export user Chat DMs via the CSV export endpoint by exploiting an overly permissive allowlist in `can_export_entity?`. The method allowed mo…
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Medium 4.3
Discourse doesn't scope reviewable notes to user-visible reviewables
Discourse is an open source discussion platform. Versions prior to 2025.12.2, 2026.1.1, and 2026.2.0 have an IDOR (Insecure Direct Object Reference) in `ReviewableNotesController`. When `enable_category_group_moderation` is enabled, a user belonging to a cate…
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High 7.5CVE-2026-26265 Scanner template
Discourse has IDOR vulnerability in the directory items endpoint
Discourse is an open source discussion platform. Prior to versions 2025.12.2, 2026.1.1, and 2026.2.0, an IDOR vulnerability in the directory items endpoint allows any user, including anonymous users, to retrieve private user field values for all users in the …
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Low 1.2
Fleet: Authorization Bypass in certificate template batch deletion for team administrators
Fleet is open source device management software. In versions prior to 4.80.1, a broken authorization check in Fleet’s certificate template deletion API could allow a team administrator to delete certificate templates belonging to other teams within the same F…
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High 8.8
WireGuard Portal Vulnerable to Privilege Escalation to Admin via User Self-Update
WireGuard Portal (or wg-portal) is a web-based configuration portal for WireGuard server management. Prior to version 2.1.3, any authenticated non-admin user can become a full administrator by sending a single PUT request to their own user profile endpoint wi…
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Medium 5.7
OpenEMR has FHIR Patient Compartment Bypass in CareTeam Resource
OpenEMR is a free and open source electronic health records and medical practice management application. Prior to version 8.0.0, an authorization bypass vulnerability in the FHIR CareTeam resource endpoint allows patient-scoped FHIR tokens to access care team…