Weakness (CWE)
CWE-290: Authentication Bypass by Spoofing
This attack-focused weakness is caused by incorrectly implemented authentication schemes that are subject to spoofing attacks.
Source: MITRE CWE-290
755 results · Feed
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Medium 6.2
A file quarantine bypass was addressed with additional checks. This issue is fixed in macOS Golden Gate 27.2, macOS Seq…
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Medium 5.3
Unauthorized Access to Internal Web Resources
An access-control vulnerability has been identified in the web server configuration. Some resources intended for on-device use only could be accessed remotely by an unauthenticated attacker with network access to the web interface. The accessible resources do…
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Critical 9.9
Forged signed tokens let any registered user take over other users and organizations
Postiz signs its session, invitation and password reset tokens with one shared secret and without any marker of what a token is for. A route that refreshes the credentials of a browser-extension channel signed data taken from the request itself and stored the…
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Medium 5.3
Zimbra Collaboration Suite Calendar Processing Authentication Bypass via Forged iCalendar REQUEST Organizer Identity
An organizer authentication vulnerability in Zimbra Collaboration Suite (ZCS) allows an unauthenticated email sender to insert calendar invitations attributed to another user. The email delivery path permits external invitations but does not verify that the m…
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Medium 5.3
Zimbra Collaboration Suite Calendar Processing Authentication Bypass via Forged iCalendar REPLY Attendee Response
An attendee authentication vulnerability in the email calendar processing of Zimbra Collaboration Suite (ZCS) allows an unauthenticated sender to forge another attendee's response to an existing meeting. Zimbra passes a null sender identity when processing iC…
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Medium 5.3
Zimbra Collaboration Suite Calendar Processing Authentication Bypass via Forged iCalendar CANCEL/REQUEST Organizer
An organizer authentication vulnerability in the email calendar processing of Zimbra Collaboration Suite (ZCS) allows an unauthenticated sender to cancel or modify an existing meeting in a recipient's calendar. Zimbra accepts iCalendar CANCEL and REQUEST comp…
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High 7.0
Heimdall: IP Spoofing via Unvalidated Forwarding Headers
Heimdall is a cloud native Identity Aware Proxy and Access Control Decision service. Prior to version 0.17.17, when the trusted_proxies option is configured, heimdall extracts client IP addresses from the Forwarded (for= parameter) and X-Forwarded-For headers…
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High 8.8
Authentication Bypass via IP Spoofing in CGM CLININET rsyncd
The rsyncd service of the CGM CLININET is vulnerable to Authentication Bypass via IP spoofing. Access is granted based solely on the client's source IP address. An attacker able to spoof an allowed IP address, can bypass this check and gain the ability to edi…
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Critical 9.8
Bytebase 0.12.0 before 1.0.1 Authentication Bypass via GitLab Self-Hosted Login
Bytebase 0.12.0 before 1.0.1 contains an authentication bypass vulnerability that allows unauthenticated attackers to log in as any user. The flaw stems from trusting client-supplied GitLab provider configuration in the POST /api/auth/login/GITLAB_SELF_HOST e…
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Critical 9.8
WordPress SureCart plugin <= 4.9.5 - Broken Authentication vulnerability
Authentication Bypass by Spoofing vulnerability in Brainstorm Force SureCart surecart allows Authentication Abuse.This issue affects SureCart: from n/a through 4.9.5.
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High 8.7
Traefik v3.7.0 before v3.7.14 mTLS Header Spoofing via Ingress-NGINX HTTP Router
Traefik from v3.7.0 before v3.7.14 contains an authentication bypass vulnerability in its Kubernetes Ingress-NGINX provider that forwards client-supplied Ssl-Client-* headers on the plaintext HTTP router. When ssl-redirect is disabled alongside auth-tls-pass-…
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Medium 5.3
Contest Gallery < 34.0.1 - Unauthenticated Vote Restriction Bypass via Spoofable Client-IP and Forgeable Voter Identity
The Contest Gallery WordPress plugin before 34.0.1 does not reliably validate the visitor identity used to enforce its one-vote-per-entry restriction, trusting a client-supplied request header and an unbound client-generated token, which allows unauthenticate…
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Medium 5.3
Payment Gateway for Idram < 2.1.6 - Unauthenticated Payment Confirmation Forgery via Empty-Default Merchant Secret
The Payment Gateway for Idram WordPress plugin before 2.1.6 does not verify the authenticity of incoming payment notifications, because the merchant credentials used to compute their checksum are empty by default, allowing unauthenticated attackers to forge a…
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Critical 9.3
SuggestArr before 3.0.0 Authentication Bypass via X-Forwarded-For Spoofing
SuggestArr before 3.0.0 contains an authentication bypass vulnerability in its local_bypass authentication mode where enforce_authentication() in api_service/auth/middleware.py trusts the client-controlled request.remote_addr value, which is derived from the …
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High 7.4
WIMOOR through commit ec86736 Authentication Bypass via Forged X-USERINFO Header
WIMOOR through commit ec86736 contains an authentication bypass vulnerability that allows attackers to impersonate any tenant and privilege level by sending an unsigned X-USERINFO header. Attackers reaching backend service ports directly, bypassing the gatewa…
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Medium 5.6
Xiaozhi-esp32-server-java through 6.1.0 Authentication Bypass via OTA Endpoint Token Issuance
Xiaozhi-esp32-server-java through 6.1.0 contains an authentication bypass vulnerability that allows unauthenticated attackers to obtain valid device WebSocket tokens by requesting /api/device/ota with any MAC address. Attackers can open a victim device's WebS…
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Critical 9.3
Improper Origin Validation in Internal Messaging Components of BeyondTrust Remote Support
The vulnerability exists within internal components of BeyondTrust’s Remote Support product. The components did not adequately validate the origin of the messages it received. Under the right conditions, this could allow an attacker to perform file operations…
KEV Oct 16, 2026 -
Critical 9.1
joserfc: JWS signature verification bypass via empty signatures array in jws.deserialize_json
joserfc is a Python library that provides an implementation of several JSON Object Signing and Encryption (JOSE) standards. Prior to 1.7.4, joserfc.jws.deserialize_json() accepts a JWS General JSON Serialization with an empty signatures array as authenticated…
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Critical 9.8
Pre-Authentication Admin Bypass and Remote Code Execution in Nutanix Prism Gateway inside AOS
An unauthenticated remote attacker can bypass authentication and gain full access to administrative API endpoints in Nutanix Prism Element by including a crafted internal management HTTP header. The vulnerability is caused by a misconfiguration in the applica…
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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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High 8.1
FileRise OIDC login can bind an attacker identity to an existing local account
FileRise is a self-hosted web-based file manager with multi-file upload, editing, and batch operations. Prior to 3.23.0, FileRise maps an authenticated OIDC identity to a local account using mutable preferred_username or email claims and does not require emai…
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High 8.1
FileRise: AUTH_BYPASS reverse-proxy header trust without source IP validation enables full authentication bypass
FileRise is a self-hosted web-based file manager with multi-file upload, editing, and batch operations. Prior to 3.16.0, FileRise deployments with AUTH_BYPASS enabled trust the configured reverse-proxy identity header without verifying that the request origin…
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Medium 4.8
holaOS through 2026.822.1 Authorization Bypass via Telegram Connector Username Allowlist
holaOS through 2026.822.1 contains an authorization bypass vulnerability in the channel-gateway Telegram connector that authorizes senders by mutable username rather than only numeric id. Attackers who register a released username listed in allowFrom can subm…
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Medium 6.9
Missing HelloVerifyRequest cookie validation in the NetX Secure DTLS server
In Eclipse ThreadX NetX Duo versions 6.0 through 6.5.2.202603, the NetX Secure DTLS server never compares the cookie a client returns with the one it issued, and treats any non-empty cookie as verified. A remote attacker can make the server send its full hand…
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Medium 6.5
NGINX Gateway Fabric vulnerability
Description NGINX Gateway Fabric has a vulnerability when it is configured with Gateway Custom Resource Definition (CRD) and have an authenticated gRPC connection with NGINX Agent. A namespaced authenticated attacker with access to a service account may imper…
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High 7.5
NGINX Ingress Controller vulnerability
An authentication and authorization bypass vulnerability exists in F5 NGINX Kubernetes Ingress Controller (NIC) when configured with the `ExternalAuth` policy or Ingress external authentication. Client-supplied X-Forwarded-Prefix, X-Forwarded-URI, X-Original-…
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High 7.6
OpenVPN 2.7_alpha1 through 2.7.7 allows remote authenticated users to impersonate others via a crafted certificate subj…
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High 7.5
Active Directory Federation Services (AD FS) Spoofing Vulnerability
No cwe for this issue in Active Directory Federation Services (AD FS) allows an unauthorized attacker to perform spoofing over a network.
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Critical 9.0
Windows Schannel Spoofing Vulnerability
No cwe for this issue in Windows Schannel allows an unauthorized attacker to perform spoofing over a network.
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High 8.4
Windows Internet (wininet.dll) Spoofing Vulnerability
Improper privilege management in Windows Internet (wininet.dll) allows an authorized attacker to perform spoofing locally.
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High 7.5
ASP.NET Core Elevation of Privilege Vulnerability
Authentication bypass by spoofing in ASP.NET Core allows an authorized attacker to elevate privileges over a network.
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Medium 5.5
Windows NTFS Information Disclosure Vulnerability
Improper access control in Windows NTFS allows an authorized attacker to disclose information locally.
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Critical 9.3
Remote Code Execution (RCE) vulnerability identified in the OpenText™ EnCase SAFE Agents
The OpenText™ (EnCase SAFE Agents) component utilized by OpenText™ Endpoint Investigator, OpenText™ Endpoint Forensics & Response, OpenText™ Information Assurance, and OpenText™ Endpoint Security contains a security vulnerability on the Agents that could allo…
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High 8.6
Authentication bypass by spoofing in ICS before version 25.1.3.0 allows a remote unauthenticated attacker to execute ar…
KEV Oct 13, 2026 -
Medium 5.9
Frappe before 13.32.0 Weak Authentication via Print View Key
Frappe framework before 13.32.0 uses weak authentication for print view access, because the print view key can be derived from data exposed by other whitelisted API endpoints. Attackers can generate a valid key to view documents through the print view without…
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Critical 9.4
Authentication Bypass via Spoofed Remote-User Header in HTTP Basic Authentication
The HTTP Basic Authentication modules in ((OTRS)) Community Edition 6 and prior accept the authenticated username from either the REMOTE_USER or HTTP_REMOTE_USER environment variable. In CGI and mod_perl based deployments, HTTP request headers may be mapped t…
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High 7.5CVE-2026-62367 Public exploit
Vikunja: OIDC email-fallback account linking ignores email_verified, enabling local-account takeover
Vikunja is an open-source self-hosted task management platform. In versions 1.0.0 through 2.3.0, when an administrator enables the per-provider `emailfallback` option on an OpenID Connect provider, Vikunja links an SSO login to a pre-existing local (username+…
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Medium —
pyLoad: Rate-Limit Bypass and Audit-Log Spoofing via Trusted Client-Controlled `X-Forwarded-For` Header
## Summary pyLoad determines the "client IP" used for its rate-limiting decorator and for its security/audit logging by reading the client-supplied `X-Forwarded-For` (XFF) HTTP header and taking the leftmost value. No trusted-proxy configuration exists (the C…
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High 7.5
WordPress GiveWP plugin <= 4.16.8.1 - Payment Bypass vulnerability
Authentication Bypass by Spoofing vulnerability in Liquid Web / StellarWP GiveWP give allows Identity Spoofing.This issue affects GiveWP: from n/a through 4.16.8.1.
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High 7.5
WordPress Forminator plugin <= 1.57.2 - Payment Bypass vulnerability
Authentication Bypass by Spoofing vulnerability in WPMU DEV Forminator forminator allows Identity Spoofing.This issue affects Forminator: from n/a through 1.57.2.