Weakness (CWE)
CWE-287: Improper Authentication
When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.
How to prevent it (1 mitigation)
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Architecture and Design
Use an authentication framework or library such as the OWASP ESAPI Authentication feature.
Source: MITRE CWE-287
854 results · Clear filters · Feed
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Critical 9.1
Fleet before 4.87.0 Authentication Bypass via Device Identifiers
Fleet versions before 4.87.0 contain an authentication bypass vulnerability in the device API that accepts hostnames and hardware serials as authentication tokens in addition to device UUIDs. Unauthenticated attackers who know or guess these non-secret identi…
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Critical 9.8
Ultimate Multisite <= 2.15.0 - Unauthenticated Authentication Bypass via 'checkout_form' Parameter
The Ultimate Multisite – WordPress Multisite SaaS & WaaS Platform plugin for WordPress is vulnerable to Authentication Bypass in all versions up to, and including, 2.15.0 via the `checkout_form` parameter of the `login_customer_after_checkout` function. This …
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Critical 9.1
Kiteworks Email Protection Gateway improper authentication
Improper authentication in a Kiteworks Email Protection Gateway administrative service. An administrative service in Kiteworks Email Protection Gateway did not consistently enforce administrator authentication, so the required password check could be bypassed…
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Critical 9.8
Apache WSS4J: SAML Sender-Vouches Authentication Bypass
An authentication bypass in the DOM security processor in Apache WSS4J allows unauthenticated remote attackers to forge authenticated SOAP messages via a crafted unsigned SAML sender-vouches assertion containing an attacker-controlled key. Users are recommend…
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Critical 9.6
Authentication Bypass in a Management Protocol of HPE Networking Instant ON APs
A vulnerability has been identified in a management protocol of HPE Networking Instant ON APs that could allow an unauthenticated adjacent attacker to circumvent existing authentication controls. Successful exploitation could result in a complete bypass of se…
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Critical 10.0
Netcore NR289-GE boa_temp process_request missing authentication
A flaw has been found in Netcore NR289-GE 1.4.5102. This impacts the function process_request of the component boa_temp Handler. This manipulation causes missing authentication. The attack is possible to be carried out remotely. The exploit has been published…
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Critical 10.0CVE-2026-100886 Public exploit
Seetong T8108/T8108P/T8116/T8232 Debug Service improper authentication
A vulnerability was identified in Seetong T8108, T8108P, T8116 and T8232 4.6.1.4-build202604241011. The affected element is an unknown function of the component Debug Service. Such manipulation leads to improper authentication. The attack may be launched remo…
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Critical 9.8CVE-2026-85984 Public exploit
miniOrange OTP Login, Verification and SMS Notifications <= 5.5.5 - Unauthenticated Authentication Bypass via 'mo_wp_login_intent' Parameter
The miniOrange OTP Login, Verification and SMS Notifications plugin for WordPress is vulnerable to Authentication Bypass via the mo_wp_login_intent parameter in all versions up to, and including, 5.5.5. This is due to a missing password-intent guard in the sk…
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Critical 9.1
Zammad: Account takeover via unverified email matching during SSO auto-link
Zammad is a web based open source helpdesk/customer support system. Prior to 7.1.2, when the "Automatic account link on initial logon" setting is enabled, Zammad binds an incoming third-party (SSO) identity to an existing local account by matching the email a…
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Critical 9.1
X-SpringBoot through 6.0 Authentication Bypass via Login Code
X-SpringBoot through 6.0 returns login verification codes in HTTP responses from unauthenticated endpoints GET /sys/mobile/code and GET /sys/email/code without sending them to account owners. Attackers can request codes using known mobile numbers or email add…
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Critical 9.8
Authentication Bypass in DIAEnergie
Improper Authentication vulnerability in DIAEnergie allows Authentication Bypass. This issue affects DIAEnergie: before 1.11.00.022.
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Critical 9.8
Apache Tomcat: Fix for CVE-2026-34500 was incomplete. OCSP checks sometimes soft-fail with FFM even when soft-fail is disabled
CLIENT_CERT authentication does not fail as expected for some scenarios when soft fail is disabled vulnerability in Apache Tomcat. This issue affects Apache Tomcat: from 11.0.0-M14 through 11.0.25, from 10.1.22 through 10.1.59, from 9.0.92 through 9.0.121. Us…
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Critical 9.0
WP OAuth Server < 6.4.0 - Subscriber+ Cross-User Account Takeover via OIDC ID Token Substitution
The WP OAuth Server ( Login with WordPress ) WordPress plugin before 6.4.0 does not bind the OpenID Connect identity assertion it issues to the authorization grant being exchanged, returning instead the assertion belonging to whichever user authenticated most…
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Critical 10.0
[mcp-atlassian] Authentication bypass in HTTP transport: AtlassianOpaqueTokenVerifier accepts any non-empty token
MCP Atlassian is a Model Context Protocol (MCP) server for Atlassian products (Confluence and Jira). Prior to 0.22.0, the HTTP transport accepts requests without a verified user identity and downstream fetcher construction falls back to the operator's globall…
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Critical 10.0
Gigatech PDV5701 WebSocket Service index.html missing authentication
A vulnerability was detected in Gigatech PDV5701 1.0.31_240305_112640. This issue affects some unknown processing of the file /index.html of the component WebSocket Service. The manipulation results in missing authentication. The attack can be launched remote…
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Critical 9.1
IBM Sterling File Gateway is Vulnerable to Authentication Bypass
IBM Sterling File Gateway could allow a remote attacker to bypass authentication and obtain a fully authenticated session due to improper authentication via an unvalidated SSO header.
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Critical 9.1
Vendure: External-authentication account takeover: external login linked to a pre-existing account by email without verification
Vendure is an open-source headless commerce platform. Prior to 3.7.0, ExternalAuthenticationService.createCustomerAndUser in packages/core/src/service/helpers/external-authentication/external-authentication.service.ts selects an existing customer user by emai…
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Critical 9.1
OAuth2 sign-in attached to an existing account without an email comparison in AshAuthentication
Improper Authentication vulnerability in team-alembic AshAuthentication allows an attacker to be signed in as another user by linking an OAuth2 identity to an account that is not theirs. AshAuthentication.Strategy.OAuth2.UserResolver.resolve/3 matches an exis…
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Critical 9.8
The Pressengine <= 1.0 - Unauthenticated Authentication Bypass
The Pressengine WordPress plugin through 1.0 does not stop its login handler from issuing a session when authentication fails, allowing unauthenticated attackers to log in as any user, including administrators.
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Critical 9.8
Login with QR <= 1.0.0 - Unauthenticated Authentication Bypass via 'autologin_code' Parameter
The Login with QR WordPress plugin through 1.0.0 does not verify that the code used to log a user in is one it issued, matching any stored user metadata value instead, which allows unauthenticated attackers to log in as any user, including administrators.
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Critical 9.8
Private Feed Key <= 0.1 - Unauthenticated Authentication Bypass via 'feedkey' Parameter
The Private Feed Key WordPress plugin through 0.1 does not verify that the key used to authenticate a feed request is one it issued, matching any stored user metadata value instead, which allows unauthenticated attackers to log in as any user, including admin…
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Critical 9.8
Apache Airflow Keycloak provider: Any realm client's credentials mint an Airflow session JWT
Apache Airflow Keycloak provider: the unauthenticated token endpoint accepts a client-credentials grant for any confidential client registered in the Keycloak realm, not only the client configured for Airflow. No allowlist restricts which client ids may authe…
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Critical 9.1
Vulnerability in the Oracle Hyperion Financial Management product of Oracle Hyperion (component: Security). The support…
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Critical 9.8
Vulnerability in the Oracle Hyperion Financial Management product of Oracle Hyperion (component: Security). The support…
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Critical 9.1
Vulnerability in the Oracle Hyperion Financial Management product of Oracle Hyperion (component: Security). The support…
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Critical 9.1
Vulnerability in the Oracle Hyperion Financial Management product of Oracle Hyperion (component: Security). The support…
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Critical 9.1
Vulnerability in the Oracle Hyperion Financial Management product of Oracle Hyperion (component: Security). The support…
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Critical 9.1
Vulnerability in the Oracle Hyperion Financial Management product of Oracle Hyperion (component: Security). The support…
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Critical 9.1
Vulnerability in the Oracle Hyperion Data Relationship Management product of Oracle Hyperion (component: Access and sec…
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Critical 9.1
Vulnerability in the Oracle Hyperion Data Relationship Management product of Oracle Hyperion (component: Access and sec…
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Critical 9.8
Vulnerability in the Oracle Mobile Application Server product of Oracle E-Business Suite (component: MWA Terminal Serve…
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Critical 9.8
Vulnerability in the Oracle Document Management and Collaboration product of Oracle E-Business Suite (component: Intern…
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Critical 9.8
Vulnerability in the Oracle Enterprise Manager for Fusion Middleware product of Oracle Enterprise Manager (component: M…
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Critical 9.8
Vulnerability in the Oracle WebCenter Enterprise Capture product of Oracle Fusion Middleware (component: Client Bundle)…
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Critical 9.8
Vulnerability in the Oracle Applications Framework product of Oracle E-Business Suite (component: Personalization). Sup…
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Critical 9.8
Vulnerability in the Oracle Business Intelligence Enterprise Edition product of Oracle Analytics (component: Platform S…
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Critical 9.8
Vulnerability in the Oracle BI Publisher product of Oracle Analytics (component: BI Platform Security). Supported versi…
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Critical 9.8
Vulnerability in the Oracle Product Lifecycle Analytics product of Oracle Supply Chain (component: Core). The supported…
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Critical 9.8
Vulnerability in the Oracle Data Integrator product of Oracle Fusion Middleware (component: Console / Repository Explor…
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Critical 9.1
Vulnerability in the Siebel CRM Deployment product of Oracle Siebel CRM (component: Server Infrastructure). Supported v…