Adobe ColdFusion 9.0, 9.0.1, and 9.0.2, when a password is not configured, allows remote attackers to bypass authentication and possibly execute arbitrary code via unspecified vectors, as exploited in the wild in January 2013.

nxapplet.jar in No Machine NX Web Companion 3.x and earlier does not properly verify the authenticity of updates, which allows user-assisted remote attackers to execute arbitrary code via a crafted (1) SiteUrl or (2) RedirectUrl parameter that points to a Trojan Horse client.zip update file.

Session fixation vulnerability in Cisco Secure Access Control System (ACS) allows remote attackers to hijack web sessions via unspecified vectors, aka Bug ID CSCud95787.

An improper authentication vulnerability exists in Pulse Connect Secure <9.1RB that allows an attacker with a users primary credentials to bypass the Google TOTP.

Huawei smartphones OxfordP-AN10B with versions earlier than 10.0.1.169(C00E166R4P1) have an improper authentication vulnerability. The Application doesn't perform proper authentication when user performs certain operations. An attacker can trick user into installing a malicious plug-in to exploit this vulnerability. Successful exploit could allow the attacker to bypass the authentication to perform unauthorized operations.

The Web User Interface on the IBM TS3100 and TS3200 tape libraries with firmware before A.60 allows remote attackers to bypass authentication and obtain administrative access via unspecified vectors.

servlet/traveler in IBM Lotus Notes Traveler through 8.5.3.3 Interim Fix 1 does not properly restrict invalid authentication attempts, which makes it easier for remote attackers to obtain access via a brute-force attack.

McAfee Email and Web Security (EWS) 5.x before 5.5 Patch 6 and 5.6 before Patch 3, and McAfee Email Gateway (MEG) 7.0 before Patch 1, does not disable the server-side session token upon the closing of the Management Console/Dashboard, which makes it easier for remote attackers to hijack sessions by capturing a session cookie and then modifying the response to a login attempt, related to a "Logout Failure" issue.

etcd versions 3.2.x before 3.2.26 and 3.3.x before 3.3.11 are vulnerable to an improper authentication issue when role-based access control (RBAC) is used and client-cert-auth is enabled. If an etcd client server TLS certificate contains a Common Name (CN) which matches a valid RBAC username, a remote attacker may authenticate as that user with any valid (trusted) client certificate in a REST API request to the gRPC-gateway.

Apple Filing Protocol (AFP) Server in Apple Mac OS X 10.6.x through 10.6.4 does not properly handle errors, which allows remote attackers to bypass the password requirement for shared-folder access by leveraging knowledge of a valid account name.

FreeRDP is a free implementation of the Remote Desktop Protocol (RDP). Prior to version 2.7.0, server side authentication against a `SAM` file might be successful for invalid credentials if the server has configured an invalid `SAM` file path. FreeRDP based clients are not affected. RDP server implementations using FreeRDP to authenticate against a `SAM` file are affected. Version 2.7.0 contains a fix for this issue. As a workaround, use custom authentication via `HashCallback` and/or ensure the `SAM` database path configured is valid and the application has file handles left.

Netbus 1.5 through 1.7 allows more than one client to be connected at the same time, but only prompts the first connection for authentication, which allows remote attackers to gain access.

Unauthorized access and impersonation can occur in versions 4.6.2.3226 and below of Progress Software's Hybrid Data Pipeline Server on Linux. This vulnerability allows attackers to combine credentials from different sources, potentially leading to client impersonation and unauthorized access.  When OAuth Clients perform an OAuth handshake with the Hybrid Data Pipeline Server, the server accepts client credentials from both HTTP headers and request parameters.

On BIG-IP 15.0.0-15.1.0.2, 14.1.0-14.1.2.3, 13.1.0-13.1.3.2, 12.1.0-12.1.5.1, and 11.5.2-11.6.5.1 and BIG-IQ 7.0.0, 6.0.0-6.1.0, and 5.2.0-5.4.0, in a High Availability (HA) network failover in Device Service Cluster (DSC), the failover service does not require a strong form of authentication and HA network failover traffic is not encrypted by Transport Layer Security (TLS).

IBM InfoSphere Data Replication 11.4 and IBM InfoSphere Change Data Capture for z/OS 10.2.1, under certain configurations, could allow a user to bypass authentication mechanisms using an empty password string. IBM X-Force ID: 189834

A vulnerability was found in WCMS up to 8.3.11. It has been declared as critical. Affected by this vulnerability is the function getMemberByUid of the file /index.php?articleadmin/getallcon of the component Login. The manipulation of the argument uid leads to improper authentication. The attack can be launched remotely. The complexity of an attack is rather high. The exploitation appears to be difficult. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

SSH protocol 2 (aka SSH-2) public key authentication in the development snapshot of OpenSSH 2.3.1, available from 2001-01-18 through 2001-02-08, does not perform a challenge-response step to ensure that the client has the proper private key, which allows remote attackers to bypass authentication as other users by supplying a public key from that user's authorized_keys file.

A vulnerability in the Common Access Card (CAC) authentication feature of Cisco Firepower Management Center (FMC) Software could allow an unauthenticated, remote attacker to bypass authentication and access the FMC system. The attacker must have a valid CAC to initiate the access attempt. The vulnerability is due to incorrect session invalidation during CAC authentication. An attacker could exploit this vulnerability by performing a CAC-based authentication attempt to an affected system. A successful exploit could allow the attacker to access an affected system with the privileges of a CAC-authenticated user who is currently logged in.

EMC Cloud Tiering Appliance (aka CTA, formerly FMA) 9.0 and earlier, and Cloud Tiering Appliance Virtual Edition (CTA/VE) 9.0 and earlier, allows remote attackers to obtain GUI administrative access by sending a crafted file during the authentication phase.

ScreenConnect versions 25.2.3 and earlier versions may be susceptible to a ViewState code injection attack. ASP.NET Web Forms use ViewState to preserve page and control state, with data encoded using Base64 protected by machine keys.  It is important to note that to obtain these machine keys, privileged system level access must be obtained. If these machine keys are compromised, attackers could create and send a malicious ViewState to the website, potentially leading to remote code execution on the server.  The risk does not originate from a vulnerability introduced by ScreenConnect, but from platform level behavior.  This had no direct impact to ScreenConnect Client. ScreenConnect 2025.4 patch disables ViewState and removes any dependency on it.

An authentication bypass vulnerability exists in the OAS Engine functionality of Open Automation Software OAS Platform v18.00.0072. A specially-crafted series of network requests can lead to arbitrary authentication. An attacker can send a sequence of requests to trigger this vulnerability.

Tenda AC18 Router through V15.03.05.05_EN and through V15.03.05.19(6318) CN devices could cause a remote code execution due to incorrect authentication handling of vulnerable logincheck() function in /usr/lib/lua/ngx_authserver/ngx_wdas.lua file if the administrator UI Interface is set to "radius".

The implementations of EAP-PWD in wpa_supplicant EAP Peer, when built against a crypto library missing explicit validation on imported elements, do not validate the scalar and element values in EAP-pwd-Commit. An attacker may complete authentication, session key and control of the data connection with a client. Both hostapd with SAE support and wpa_supplicant with SAE support prior to and including version 2.4 are affected. Both hostapd with EAP-pwd support and wpa_supplicant with EAP-pwd support prior to and including version 2.7 are affected.

The implementations of EAP-PWD in hostapd EAP Server, when built against a crypto library missing explicit validation on imported elements, do not validate the scalar and element values in EAP-pwd-Commit. An attacker may be able to use invalid scalar/element values to complete authentication, gaining session key and network access without needing or learning the password. Both hostapd with SAE support and wpa_supplicant with SAE support prior to and including version 2.4 are affected. Both hostapd with EAP-pwd support and wpa_supplicant with EAP-pwd support prior to and including version 2.7 are affected.

The implementations of EAP-PWD in hostapd EAP Server and wpa_supplicant EAP Peer do not validate the scalar and element values in EAP-pwd-Commit. This vulnerability may allow an attacker to complete EAP-PWD authentication without knowing the password. However, unless the crypto library does not implement additional checks for the EC point, the attacker will not be able to derive the session key or complete the key exchange. Both hostapd with SAE support and wpa_supplicant with SAE support prior to and including version 2.4 are affected. Both hostapd with EAP-pwd support and wpa_supplicant with EAP-pwd support prior to and including version 2.7 are affected.

An improper authentication vulnerability can be exploited through a race condition that occurs in Ellucian Banner Web Tailor 8.8.3, 8.8.4, and 8.9 and Banner Enterprise Identity Services 8.3, 8.3.1, 8.3.2, and 8.4, in conjunction with SSO Manager. This vulnerability allows remote attackers to steal a victim's session (and cause a denial of service) by repeatedly requesting the initial Banner Web Tailor main page with the IDMSESSID cookie set to the victim's UDCID, which in the case tested is the institutional ID. During a login attempt by a victim, the attacker can leverage the race condition and will be issued the SESSID that was meant for this victim.

The HTTP Connector component of TIBCO Software Inc.'s TIBCO ActiveMatrix BusinessWorks contains a vulnerability that theoretically allows unauthenticated HTTP requests to be processed by the BusinessWorks engine even when authentication is required. This possibility is restricted to circumstances where HTTP "Basic Authentication" policy is used in conjunction with an XML Authentication resource. The BusinessWorks engine might instead use credentials from a prior HTTP request for authorization purposes. Affected releases are TIBCO Software Inc. TIBCO ActiveMatrix BusinessWorks: versions up to and including 6.4.2.

A vulnerability in the HPE Performance Cluster Manager (HPCM) GUI could allow an attacker to bypass authentication.

A CWE-287: Authentication vulnerability exists in spaceLYnk (all versions before 2.4.0) and Wiser for KNX (all versions before 2.4.0 - formerly known as homeLYnk), which could cause loss of control when an attacker bypasses the authentication.

Huawei smartphones with versions earlier than Taurus-AL00B 10.0.0.41(SP2C00E41R3P2) have an improper authentication vulnerability. Successful exploitation may cause the attacker to access specific components.

A vulnerability was found in mod_auth_mellon before v0.14.2. If Apache is configured as a reverse proxy and mod_auth_mellon is configured to only let through authenticated users (with the require valid-user directive), adding special HTTP headers that are normally used to start the special SAML ECP (non-browser based) can be used to bypass authentication.

Authentication Bypass vulnerability in the Microsoft Windows client in McAfee Client Proxy (MCP) prior to 3.0.0 allows local user to bypass scanning of web traffic and gain access to blocked sites for a short period of time via generating an authorization key on the client which should only be generated by the network administrator.

Wire is an encrypted communication and collaboration platform. Versions prior to 2022-07-12/Chart 4.19.0 are subject to Token Recipient Confusion. If an attacker has certain details of SAML IdP metadata, and configures their own SAML on the same backend, the attacker can delete all SAML authenticated accounts of a targeted team, Authenticate as a user of the attacked team and create arbitrary accounts in the context of the team if it is not managed by SCIM. This issue is fixed in wire-server 2022-07-12 and is already deployed on all Wire managed services. On-premise instances of wire-server need to be updated to 2022-07-12/Chart 4.19.0, so that their backends are no longer affected. As a workaround, the risk of an attack can be reduced by disabling SAML configuration for teams (galley.config.settings.featureFlags.sso). Helm overrides are located in `values/wire-server/values.yaml` Note that the ability to configure SAML SSO as a team is disabled by default for on-premise installations.

Zoho ManageEngine Active Directory 360 versions 4315 and below, ADAudit Plus 7202 and below, ADManager Plus 7200 and below, Asset Explorer 6993 and below and 7xxx 7002 and below, Cloud Security Plus 4161 and below, Data Security Plus 6110 and below, Eventlog Analyzer 12301 and below, Exchange Reporter Plus 5709 and below, Log360 5315 and below, Log360 UEBA 4045 and below, M365 Manager Plus 4529 and below, M365 Security Plus 4529 and below, Recovery Manager Plus 6061 and below, ServiceDesk Plus 14204 and below and 143xx 14302 and below, ServiceDesk Plus MSP 14300 and below, SharePoint Manager Plus 4402 and below, and Support Center Plus 14300 and below are vulnerable to 2FA bypass via a few TOTP authenticators. Note: A valid pair of username and password is required to leverage this vulnerability.

A vulnerability in the session management functionality of the web-based interface for Cisco Small Business RV320 and RV325 Dual Gigabit WAN VPN Routers could allow an unauthenticated, remote attacker to hijack a valid user session on an affected system. An attacker could use this impersonated session to create a new user account or otherwise control the device with the privileges of the hijacked session. The vulnerability is due to a lack of proper session management controls. An attacker could exploit this vulnerability by sending a crafted HTTP request to a targeted device. A successful exploit could allow the attacker to take control of an existing user session on the device. Exploitation of the vulnerability requires that an authorized user session is active and that the attacker can craft an HTTP request to impersonate that session.

An authentication bypass vulnerability exists in the OAS Engine functionality of Open Automation Software OAS Platform v18.00.0072. A specially crafted series of network requests can lead to arbitrary authentication. An attacker can sniff network traffic to trigger this vulnerability.

Certain NETGEAR devices allow remote attackers to disable all authentication requirements by visiting genieDisableLanChanged.cgi. The attacker can then, for example, visit MNU_accessPassword_recovered.html to obtain a valid new admin password. This affects AC1450, D8500, DC112A, JNDR3000, LG2200D, R4500, R6200, R6200V2, R6250, R6300, R6300v2, R6400, R6700, R6900P, R6900, R7000P, R7000, R7100LG, R7300, R7900, R8000, R8300, R8500, WGR614v10, WN2500RPv2, WNDR3400v2, WNDR3700v3, WNDR4000, WNDR4500, WNDR4500v2, WNR1000, WNR1000v3, WNR3500L, and WNR3500L.

Support Incident Tracker before 3.51, when using LDAP authentication with anonymous binds, allows remote attackers to bypass authentication via an empty password.

The OTP Login Woocommerce & Gravity Forms plugin for WordPress is vulnerable to authentication bypass. This is due to the fact that when generating OTP codes for users to use in order to login via phone number, the plugin returns these codes in an AJAX response. This makes it possible for unauthenticated attackers to obtain login codes for administrators. This does require an attacker have access to the phone number configured for an account, which can be obtained via social engineering or reconnaissance.

Incorrect authentication of application WebSocket connections in Loom Desktop for Mac up to 0.16.0 allows remote code execution from either malicious JavaScript in a browser or hosts on the same network, during periods in which a user is recording a video with the application. The same attack vector can be used to crash the application at any time.

Improper authentication is possible in Apache Traffic Control versions 3.0.0 and 3.0.1 if LDAP is enabled for login in the Traffic Ops API component. Given a username for a user that can be authenticated via LDAP, it is possible to improperly authenticate as that user without that user's correct password.

The servlets invoked by httpha-invoker in JBoss Enterprise Application Platform before 5.1.2, SOA Platform before 5.2.0, BRMS Platform before 5.3.0, and Portal Platform before 4.3 CP07 perform access control only for the GET and POST methods, which allow remote attackers to bypass authentication by sending a request with a different method. NOTE: this vulnerability exists because of a CVE-2010-0738 regression.

Incorrect Access Control in the Account Access / Password Reset Link in SimplyBook.me Enterprise before 2019-04-23 allows Unauthorized Attackers to READ/WRITE Customer or Administrator data via a persistent HTTP GET Request Hash Link Replay, as demonstrated by a login-link from the browser history.

Session fixation vulnerability in Edikon phpShop 0.8.1 allows remote attackers to hijack web sessions via unspecified vectors. NOTE: the provenance of this information is unknown; the details are obtained solely from third party information.

The time-based one-time-password (TOTP) function in the application logic of the Green Electronics RainMachine Mini-8 (2nd generation) uses the administrator's password hash to generate a 6-digit temporary passcode that can be used for remote and local access, aka a "Use of Password Hash Instead of Password for Authentication" issue. This is exploitable by an attacker who discovers a hash value in the rainmachine-settings.sqlite file.

Session fixation vulnerability in BLUEPAGE CMS 2.5 and earlier allows remote attackers to hijack web sessions by setting the PHPSESSID parameter.

The User.offer_account_by_email WebService method in Bugzilla 2.x and 3.x before 3.4.13, 3.5.x and 3.6.x before 3.6.7, 3.7.x and 4.0.x before 4.0.3, and 4.1.x through 4.1.3, when createemailregexp is not empty, does not properly handle user_can_create_account settings, which allows remote attackers to create user accounts by leveraging a token contained in an e-mail message.

Session fixation vulnerability in SpaceTag LacoodaST 2.1.3 and earlier allows remote attackers to hijack web sessions via unspecified vectors.

Session fixation vulnerability in Social ImpressCMS before 1.1.1 RC1 allows remote attackers to hijack web sessions by setting the PHPSESSID parameter.

Meshtastic is an open source, off-grid, decentralized, mesh network. Meshtastic uses MQTT to communicate over an internet connection to a shared or private MQTT Server. Nodes can communicate directly via an internet connection or proxied through a connected phone (i.e., via bluetooth). Prior to version 2.5.1, multiple weaknesses in the MQTT implementation allow for authentication and authorization bypasses resulting in unauthorized control of MQTT-connected nodes. Version 2.5.1 contains a patch.