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
3,167 results · Feed
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Medium 6.5
Linux Foundation Magma Registration Complete Message amf_fsm.cpp improper authentication
A vulnerability was found in Linux Foundation Magma 1.9.0. The affected element is an unknown function of the file tasks/amf/amf_fsm.cpp of the component Registration Complete Message Handler. The manipulation results in improper authentication. The attack ca…
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High 7.5
SAML Single Sign On <= 5.4.6 - Unauthenticated Authentication Bypass via X.509 Certificate Poisoning
The SAML Single Sign On – SSO Login plugin for WordPress is vulnerable to Authentication Bypass in versions up to, and including, 5.4.6. This is due to the mo_saml_login_validate() ACS handler persisting the X.509 certificate extracted from an incoming SAMLRe…
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High 8.7
Rodauth before 2.46.0 Authentication Bypass via webauthn_login
Rodauth before 2.46.0 contains an authentication bypass vulnerability in the webauthn_login route that allows logged-in users to authenticate as any other account. Attackers can exploit improper account resolution logic that falls back to session account iden…
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High 8.2
Profile Builder < 4.0.1 - Unauthenticated Unpublished Content and Media Modification via Front-End Upload Auth Bypass
The User Profile Builder WordPress plugin before 4.0.1 does not properly restrict its front-end file upload feature, granting unauthenticated visitors capabilities reserved to privileged roles. This allows them to list the site's media library and to modify u…
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High 8.2
Langflow is affected by multiple authentication bypass, path traversal, authorization, and server-side request forgery vulnerabilities
IBM Langflow OSS 1.0.0 through 1.11.1 could allow a remote attacker to execute arbitrary flows and access sensitive information due to improper authentication.
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High 7.5
IBM Application Runtime Expert (ARE) for IBM i is vulnerable to a user gaining elevated privileges and sensitive information [, ].
IBM Administration Runtime Expert for i 1R1M0 could allow a remote authenticated attacker to obtain sensitive information due to improper authentication enforcement.
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Medium 6.9
Arc: Unauthenticated cluster node admission when `cluster.shared_secret` is unset
Arc is an open, SQL-native time-series database for telemetry. From 26.02.1 until 26.06.2, Arc Enterprise clustering accepts cluster join requests without authentication when cluster.enabled is true but cluster.shared_secret is not configured. The defaults in…
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Critical 9.8
Potential authentication bypass leading to administrative access in Artifactory
JFrog Artifactory contains an authentication weakness that, under default configuration, may allow an unauthenticated attacker with network access to obtain administrative privileges.
KEV Sep 2, 2026 -
High 7.4
An attacker that holds a token intended for a different purpose can authenticate, because when an OAuth2 token response…
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Medium 4.3
Forwarding information received from a host listed as a trusted proxy is not kept separate from Dovecot's own authentic…
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Medium 5.9
An attacker that holds an OAuth2 token granting only part of the required scopes can authenticate, because when more th…
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Medium 5.5
openssl_encrypt before 1.4.9 Authentication Bypass via Unencrypted PQC Key
openssl_encrypt versions before 1.4.9 fail to validate encryption status of embedded post-quantum private keys in file metadata. Attackers can craft files with unencrypted embedded PQC keys that decrypt under any password, bypassing authentication and produci…
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Critical 9.8
A vulnerability in the WebSocket endpoint of gpt-researcher v0.14.7 and before allows an unauthenticated remote attacke…
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High 7.3
itsourcecode Payroll System CRUD Operation ajax.php delete missing authentication
A flaw has been found in itsourcecode Payroll System 1.0. The impacted element is the function create/read/update/delete of the file ajax.php of the component CRUD Operation Handler. Executing a manipulation of the argument action can lead to missing authenti…
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High 7.6
Dell PowerProtect Cyber Recovery, versions prior to 20.3, contain an Improper Authentication vulnerability. A low privi…
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High 8.8
Insecure PIN derivation mechanism in Admin By Request (ABR)
An insecure PIN derivation mechanism in ABR allows a low-privileged user to escalate privileges to administrator by communicating over Cross-Process Communication (XPC) while masquerading as an Apple-signed process.
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High 8.1
BlogVault, MalCare and WP Remote 5.16 - 6.62 - Unauthenticated Site Takeover via Connection Key Recovery
The BlogVault Backup & Staging WordPress plugin before 6.65, MalCare WordPress Security Plugin WordPress plugin before 6.65, The WP Remote WordPress Plugin WordPress plugin before 6.65 do not prevent unauthenticated users from obtaining data derived from the …
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Medium 6.5
Amelia < 2.4.7 - Unauthenticated Notification Queue Dispatch
The Booking for Appointments and Events Calendar WordPress plugin before 2.4.7 does not require authentication before processing its pending notification queue, allowing an unauthenticated user to force the dispatch of queued notifications and integration cal…
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Critical 9.8
DWSurvey v6.14.0 is is vulnerable to authentication bypass via the '/api/dwsurvey/none/' and '/api/dwsurvey/up/**' para…
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High 8.1
better-auth SSO before 1.6.27 Domain Ownership Authentication Bypass
@better-auth/sso before 1.6.27 (and before 1.4.8 in the 1.4.x line and before 1.7.0-rc.5 in the 1.7 prerelease line) contains two domain-ownership flaws. When domain verification is disabled, automatic organization assignment accepts unverified provider domai…
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Medium 6.3
Doorkeeper OpenID Connect: Dynamic Client Registration feature creates public clients with client_secret
Doorkeeper is an OAuth 2 provider for Ruby on Rails. In version 1.9.0, an attacker who knows only a dynamically registered client's client_id, which is public information, can authenticate as that client at the token endpoint and obtain an access token withou…
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High 8.1
Apache Tomcat: Principal lookup can fail open in some cases
Improper Authentication vulnerability in Apache Tomcat meant that in some circumstances (e.g. CLIENT-CERT, SPNEGO) that a user would be authenticated even if the user did not exist in the DataSourceRealm. This issue affects Apache Tomcat: from 11.0.0-M1 throu…
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Critical 9.8
Alluxio through 2.9.5 S3 REST Proxy Authentication Bypass via Unverified Request Signature
Alluxio's S3 REST proxy fails to verify AWS Signature Version 4 signatures in its default configuration, allowing unauthenticated attackers to spoof user identity. Attackers can extract usernames from unsigned Authorization headers and impersonate any user, i…
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High 8.8
NVIDIA UFM Enterprise contains a vulnerability in the web interface authorization component, where an authenticated use…
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High 8.2
PraisonAI: Authentication fail-open in Recipe server allows unauthenticated access when API key or JWT auth is configured without a secret
PraisonAI is a multi-agent teams system. Prior to praisonai 4.6.58, create_auth_middleware() allows requests when auth=api-key lacks PRAISONAI_API_KEY or JWT authentication lacks PRAISONAI_JWT_SECRET. An externally bound Recipe server can therefore accept una…
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Medium 5.6
liketrek TREK OIDC Service oidcService.ts findOrCreateUser improper authentication
A vulnerability was identified in liketrek TREK up to 3.0.22. The impacted element is the function findOrCreateUser of the file server/src/services/oidcService.ts of the component OIDC Service. Such manipulation leads to improper authentication. It is possibl…
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Medium 6.3
liketrek TREK Pre-2FA mfa_token authService.ts loginUser improper authentication
A vulnerability was found in liketrek TREK up to 3.0.22. Impacted is the function loginUser of the file server/src/services/authService.ts of the component Pre-2FA mfa_token Handler. The manipulation results in improper authentication. The attack may be perfo…
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High 7.4
Apache Hive: Unauthenticated authentication bypass in HiveServer2 HTTP SAML bearer-token validation allows impersonation of any Hive user
An improper authentication vulnerability in HiveServer2 SAML bearer-token validation in Apache Hive 4.0.0 through 4.2.0 (and later unreleased branches) on deployments using HTTP transport with hive.server2.authentication=SAML allows an unauthenticated network…
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High 7.6
Purpose-limited JWT accepted as full bearer authentication in AshAuthentication
Improper Authentication vulnerability in team-alembic AshAuthentication allows purpose-limited JWTs to be replayed as full bearer API credentials when a resource uses stateless bearer-token verification. The bearer-token authentication helper AshAuthenticatio…
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Medium 6.5
Faveo Helpdesk post-ticket-reply Endpoint FormController.php post_ticket_reply missing authentication
A flaw has been found in Faveo Helpdesk up to 2.0.3. This impacts the function FormController::post_ticket_reply of the file app/Http/Controllers/Client/helpdesk/FormController.php of the component post-ticket-reply Endpoint. This manipulation causes missing …
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High 8.1
Filament: App-based MFA can be bypassed when recovery codes are enabled
Filament is a collection of full-stack components for accelerated Laravel development. Prior to versions 4.12.0 and 5.7.0, incorrect challenge-form required-field handling allows app-based multi-factor authentication to be bypassed when recovery codes are ena…
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High 7.5CVE-2026-66908 Public exploit
Apache Camel: Camel-platform-http-main: when JWT authentication was configured with a keystore but no issuer or audience, the iss and aud claims were never validated, so any unexpired token signed by a trusted key was accepted
Improper Authentication vulnerability in Apache Camel Platform HTTP Main component. This issue affects Apache Camel: from 4.8.0 before 4.22.0. The camel-main embedded HTTP server can protect its endpoints with JWT authentication, configured through authentica…
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Critical 9.8
EFM ipTIME T24000M Session Validation httpcon_check_session_url improper authentication
A security vulnerability has been detected in EFM ipTIME T24000M up to 14.20.0. This affects the function httpcon_check_session_url of the component Session Validation Handler. Such manipulation leads to improper authentication. The attack can be executed rem…
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Critical 10.0
EFM ipTIME T16000M Session Validation httpcon_check_session_url improper authentication
A weakness has been identified in EFM ipTIME T16000M 14.20.2. The impacted element is the function httpcon_check_session_url of the component Session Validation Handler. This manipulation causes improper authentication. Remote exploitation of the attack is po…
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Critical 9.8
Social Login & Sharing buttons with Analytics By SoClever <= 1.2.0 - Unauthenticated Authentication Bypass
The Social Login & Sharing buttons with Analytics By SoClever WordPress plugin through 1.2.0 does not perform any authentication, authorisation or nonce checks in one of its publicly accessible login handlers, allowing unauthenticated attackers to obtain a va…
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Critical 9.8
SmilePass Selfie Login <= 1.0.2 - Unauthenticated Authentication Bypass
The SmilePass Selfie Login WordPress plugin through 1.0.2 does not perform any server-side verification of the identity it is asked to authenticate, allowing unauthenticated users to log in as any registered account, including administrators.
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Critical 9.8
WP Social Media Login <= 1.0.6 - Unauthenticated Account Takeover via Twitter Login Flow
The WP Social Media Login WordPress plugin through 1.0.6 does not verify that a social login was actually completed with the identity provider before authenticating a visitor, allowing unauthenticated attackers to log in as any existing user, including admini…
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High 8.1
Firebase Authentication < 1.7.1 - Unauthenticated Account Takeover via Firebase Email Claim
The Firebase Authentication WordPress plugin before 1.7.1 does not require the email address in an authentication token to be verified before matching it to a WordPress account and issuing a session, allowing unauthenticated attackers to log in as any user, i…
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High 8.1
ManageWP Worker < 4.9.37 - Unauthenticated Authentication Bypass via Unsigned Auto-Login Parameters
The ManageWP Worker WordPress plugin before 4.9.37 does not bind the account being logged in to the signature which authorises the login, nor prevent an already used login link from being replayed, allowing attackers who obtain such a link to gain a session a…
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Medium 5.4
Welcart e-Commerce < 2.12.1 - Session Fixation via uscesid Parameter
The Welcart e-Commerce WordPress plugin before 2.12.1 does not regenerate the session identifier on authentication and sets the session identifier from a user-supplied request parameter, allowing an unauthenticated attacker to fixate a shop member's session a…