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
871 results · Clear filters · Feed
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Medium 5.1
OpenClaw < 2026.3.23 - Authentication Bypass via Local-Direct Requests in Canvas Gateway
OpenClaw before 2026.3.23 contains an authentication bypass vulnerability in the Canvas gateway where authorizeCanvasRequest() unconditionally allows local-direct requests without validating bearer tokens or canvas capabilities. Attackers can send unauthentic…
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Medium 6.5
Apache Tomcat: 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 and FFM is used in Apache Tomcat. This issue affects Apache Tomcat: from 11.0.0-M14 through 11.0.20, from 10.1.22 through 10.1.53, from 9.0.92 through 9.0.116. …
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Medium 6.6
GL.iNet GL-RM1/GL-RM10/GL-RM10RC/GL-RM1PE Factory Reset improper authentication
A security flaw has been discovered in GL.iNet GL-RM1, GL-RM10, GL-RM10RC and GL-RM1PE 1.8.1. Affected by this issue is some unknown functionality of the component Factory Reset Handler. Performing a manipulation results in improper authentication. The attack…
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Medium 5.0
LobeHub has an unauthenticated authentication bypass on `webapi` routes via forgeable `X-lobe-chat-auth` header
LobeHub is a work-and-lifestyle space to find, build, and collaborate with agent teammates that grow with you. Prior to 2.1.48, the webapi authentication layer trusts a client-controlled X-lobe-chat-auth header that is only XOR-obfuscated, not signed or other…
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Medium 6.3
badlogic pi-mono pi-mom Slack Bot slack.ts authentication bypass
A vulnerability was detected in badlogic pi-mono up to 0.58.4. This issue affects some unknown processing of the file packages/mom/src/slack.ts of the component pi-mom Slack Bot. The manipulation results in authentication bypass using alternate channel. The a…
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Medium 5.0CVE-2026-34990 Public exploit
OpenPrinting CUPS: Local print admin token disclosure using temporary printers
OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems. In versions 2.4.16 and prior, a local unprivileged user can coerce cupsd into authenticating to an attacker-controlled localhost IPP service with a reusable A…
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Medium 5.3
Open edX Platform: Account Activation Bypass via activation_key Exposure in REST API
Open edX Platform enables the authoring and delivery of online learning at any scale. From the maple release to before the ulmo release, an unauthenticated attacker can fully bypass the email verification process by combining two issues: the OAuth2 password g…
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Medium 6.5
Flask-HTTPAuth invokes token verification callback when missing or empty token was given by client
Flask-HTTPAuth provides Basic, Digest and Token HTTP authentication for Flask routes. Prior to version 4.8.1, in a situation where the client makes a request to a token protected resource without passing a token, or passing an empty token, Flask-HTTPAuth woul…
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Medium 5.4
Improper authentication in the external OAuth authentication flow in Devolutions Server 2026.1.11 and earlier allows an…
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Medium 4.9
Fleet's user account creation via invite does not enforce invited email address
Fleet is open source device management software. Prior to 4.81.0, Fleet contained an issue in the user invitation flow where the email address provided during invite acceptance was not validated against the email address associated with the invite. An attacke…
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Medium 4.2
NATS has mTLS verify_and_map authentication bypass via incorrect Subject DN matching
NATS-Server is a High-Performance server for NATS.io, a cloud and edge native messaging system. Prior to versions 2.11.15 and 2.12.6, when using mTLS for client identity, with `verify_and_map` to derive a NATS identity from the client certificate's Subject DN…
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Medium 6.4
NATS: Leafnode connections allow spoofing of Nats-Request-Info identity headers
NATS-Server is a High-Performance server for NATS.io, a cloud and edge native messaging system. The nats-server offers a `Nats-Request-Info:` message header, providing information about a request. This is supposed to provide enough information to allow for ac…
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Medium 6.5
NATS is vulnerable to MQTT hijacking via Client ID
NATS-Server is a High-Performance server for NATS.io, a cloud and edge native messaging system. The nats-server provides an MQTT client interface. Prior to versions 2.11.15 and 2.12.5, Sessions and Messages can by hijacked via MQTT Client ID malfeasance. Vers…
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Medium 6.5
pyload-ng: Improper Authentication and Origin Validation Error
pyLoad is a free and open-source download manager written in Python. Prior to version 0.5.0b3.dev97, a Host Header Spoofing vulnerability in the @local_check decorator allows unauthenticated external attackers to bypass local-only restrictions. This grants ac…
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Medium 5.7
Vikunja has TOTP Reuse During Validity Window
Vikunja is an open-source self-hosted task management platform. Starting in version 0.13 and prior to version 2.2.1, any user that has enabled 2FA can have their TOTP reused during the standard 30 second validity window. Version 2.2.1 patches the issue.
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Medium 4.9
New API has passkey-based secure step-up verification bypass for root-only channel secret disclosure
New API is a large language mode (LLM) gateway and artificial intelligence (AI) asset management system. Starting in version 0.10.0, a logic flaw in the universal secure verification flow allows an authenticated user with a registered passkey to satisfy secur…
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Medium 5.6
kalcaddle kodbox Password Login index.class.php tfaVerify improper authentication
A security vulnerability has been detected in kalcaddle kodbox 1.64. This impacts the function loginAfter/tfaVerify of the file /workspace/source-code/plugins/client/controller/tfa/index.class.php of the component Password Login. The manipulation leads to imp…
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Medium 5.0
Shenzhen HCC Technology MPOS M6 PLUS Bluetooth authentication replay
A vulnerability was detected in Shenzhen HCC Technology MPOS M6 PLUS 1V.31-N. Affected by this issue is some unknown functionality of the component Bluetooth Handler. Performing a manipulation results in authentication bypass by capture-replay. The attack mus…
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Medium 5.0
Shenzhen HCC Technology MPOS M6 PLUS Bluetooth missing authentication
A security vulnerability has been detected in Shenzhen HCC Technology MPOS M6 PLUS 1V.31-N. Affected by this vulnerability is an unknown functionality of the component Bluetooth. Such manipulation leads to missing authentication. The attack must be carried ou…
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Medium 5.0
OmniPEMF NeoRhythm BLE missing authentication
A security vulnerability has been detected in OmniPEMF NeoRhythm up to 20260308. This affects an unknown function of the component BLE Interface. Such manipulation leads to missing authentication. The attack can only be initiated within the local network. Thi…
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Medium 6.3
Yi Technology YI Home Camera CGI Endpoint ipc missing authentication
A vulnerability was found in Yi Technology YI Home Camera 2 2.1.1_20171024151200. The impacted element is an unknown function of the file home/web/ipc of the component CGI Endpoint. Performing a manipulation results in missing authentication. Access to the lo…
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Medium 5.3
SiYuan: Cross-Origin WebSocket Hijacking via Authentication Bypass — Unauthenticated Information Disclosure
SiYuan is a personal knowledge management system. In versions 3.6.0 and below, the WebSocket endpoint (/ws) allows unauthenticated connections when specific URL parameters are provided (?app=siyuan&id=auth&type=auth). This bypass, intended for the login page …
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Medium 6.5
Unauthorized access to information
Improper Authentication vulnerability in Secomea GateManager (webserver modules) allows Authentication Bypass.This issue affects GateManager: 11.4;0.
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Medium 6.9
Parse Server affected by empty authData bypassing credential requirement on signup
Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to 9.6.0-alpha.29 and 8.6.49, a user can sign up without providing credentials by sending an empty `authData` object, bypassing the username and pass…
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Medium 6.5
GLPI has a MFA bypass
GLPI is a free Asset and IT management software package. Starting in version 11.0.0 and prior to version 11.0.6, a malicious actor with knowledge of a user's credentials can bypass MFA and steal their account. Version 11.0.6 fixes the issue.
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Medium 5.6
Duende IdentityServer4 Token Renewal Endpoint authorize improper authentication
A vulnerability was determined in Duende IdentityServer4 up to 4.1.2. The affected element is an unknown function of the file /connect/authorize of the component Token Renewal Endpoint. This manipulation of the argument id_token_hint causes improper authentic…
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Medium 5.3
Tiandy Easy7 Integrated Management Platform Device Identifier UpdateLocalDevInfo.jsp missing authentication
A vulnerability was identified in Tiandy Easy7 Integrated Management Platform 7.17.0. Impacted is an unknown function of the file /WebService/UpdateLocalDevInfo.jsp of the component Device Identifier Handler. Such manipulation of the argument username/passwor…
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Medium 6.3
suitenumerique messages ThreadAccess serializers.py ThreadAccessSerializer improper authentication
A security flaw has been discovered in suitenumerique messages 0.2.0. This issue affects the function ThreadAccessSerializer of the file src/backend/core/api/serializers.py of the component ThreadAccess. The manipulation results in improper authentication. Th…
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Medium 5.3
Vercel Workflow Allows Webhook Creation with Predictable User-Specified Tokens
`createWebhook()` in Vercel Workflow DevKit accepts a user-specified `token` parameter that serves as the credential for the public webhook endpoint `/.well-known/workflow/v1/webhook/{token}`. Official documentation recommended predictable token patterns, mak…
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Medium 6.4
Natro Macro: Malicious actions allowed through Discord RC Commands by any user
Natro Macro is an open-source Bee Swarm Simulator macro written in AutoHotkey. Prior to version 1.1.0, anyone with Discord Remote Control set up in a non-private channel gives access to any user with the permission to send message in said channel access to do…
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Medium 5.3
Talishar: Authentication Bypass via Empty authKey Parameter Allows Unauthenticated Game Actions
Talishar is a fan-made Flesh and Blood project. Prior to commit a9c218e, an authentication bypass vulnerability in Talishar's game endpoint validation logic allows any unauthenticated attacker to perform authenticated game actions — including sending chat mes…
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Medium 5.3
OpenClaw 2026.1.14-1 < 2026.2.2 - Allowlist Bypass via displayName and Cross-Homeserver localpart Matching in Matrix Plugin
OpenClaw version 2026.1.14-1 prior to 2026.2.2, with the Matrix plugin installed and enabled, contain a vulnerability in which DM allowlist matching could be bypassed by exact-matching against sender display names and localparts without homeserver validation.…
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Medium 5.9
OpenClaw voice-call < 2026.2.3 - Webhook Verification Bypass via Forwarded Headers
OpenClaw's voice-call plugin versions before 2026.2.3 contain an improper authentication vulnerability in webhook verification that allows remote attackers to bypass verification by supplying untrusted forwarded headers. Attackers can spoof webhook events by …
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Medium 6.7
EC-CUBE has a Vulnerability that Allows MFA Bypass in the Administrative Interface
# Vulnerability Allowing MFA Bypass ## Affected EC-CUBE Versions Versions: 4.1.0 – 4.3.1 ## Vulnerability Overview If an administrator’s ID and password are compromised, an issue exists that allows an attacker to bypass the normally required two-factor authen…
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Medium 6.9
Craft has an unauthenticated activation email trigger with potential user enumeration
Craft is a content management system (CMS). Prior to 5.9.0-beta.2 and 4.17.0-beta.2, the actionSendActivationEmail() endpoint is accessible to unauthenticated users and does not require a permission check for pending users. An attacker with no prior access ca…
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Medium 6.5
OpenClaw has a Discord `allowFrom` slug-collision authorization bypass
OpenClaw supports Discord allowlists using either user IDs or names/tags. Name/tag matching depends on slug normalization, so different user tags can collide to the same slug and unintentionally satisfy a name-based allowlist entry. ## Affected Packages / Ver…
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Medium 5.3
Japanized for WooCommerce <= 2.8.4 - Missing Authorization to Unauthenticated Paidy Order Manipulation
The Japanized for WooCommerce plugin for WordPress is vulnerable to Improper Authentication in versions up to, and including, 2.8.4. This is due to a flawed permission check in the `paidy_webhook_permission_check` function that unconditionally returns `true` …
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Medium 6.5CVE-2026-26077 Scanner template
Discourse doesn't ensure webhooks require a token
Discourse is an open source discussion platform. Prior to versions 2025.12.2, 2026.1.1, and 2026.2.0, several webhook endpoints (SendGrid, Mailjet, Mandrill, Postmark, SparkPost) in the `WebhooksController` accepted requests without a valid authentication tok…
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Medium 4.3
Packistry accepts expired access tokens
Packistry is a self-hosted Composer repository designed to handle PHP package distribution. Prior to version 0.13.0, RepositoryAwareController::authorize() verified token presence and ability, but did not enforce token expiration. As a result, an expired depl…
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Medium 4.5
Chia Blockchain RPC Server Master Passphrase get_private_key missing authentication
A flaw has been found in Chia Blockchain 2.1.0. The affected element is the function send_transaction/get_private_key of the component RPC Server Master Passphrase Handler. This manipulation causes missing authentication. The attack can only be executed local…