In Alerta before version 8.1.0, users may be able to bypass LDAP authentication if they provide an empty password when Alerta server is configure to use LDAP as the authorization provider. Only deployments where LDAP servers are configured to allow unauthenticated authentication mechanism for anonymous authorization are affected. A fix has been implemented in version 8.1.0 that returns HTTP 401 Unauthorized response for any authentication attempts where the password field is empty. As a workaround LDAP administrators can disallow unauthenticated bind requests by clients.

Loxone Miniserver devices with firmware before 11.1 (aka 11.1.9.3) are unable to use an authentication method that is based on the "signature of the update package." Therefore, these devices (or attackers who are spoofing these devices) can continue to use an unauthenticated cloud service for an indeterminate time period (possibly forever). Once an individual device's firmware is updated, and authentication occurs once, the cloud service recategorizes the device so that authentication is subsequently always required, and spoofing cannot occur.

The LDAP authentication method in LdapLoginModule in Hazelcast IMDG Enterprise 4.x before 4.0.3, and Jet Enterprise 4.x through 4.2, doesn't verify properly the password in some system-user-dn scenarios. As a result, users (clients/members) can be authenticated even if they provide invalid passwords.

In SapphireIMS 5.0, it is possible to take over an account by sending a request to the Save_Password form as shown in POC. Notice that we do not require a JSESSIONID in this request and can reset any user’s password by changing the username to that user and password to base64(desired password).

In S+ Operations and S+ History, it is possible that an unauthenticated user could inject values to the Operations History server (or standalone S+ History server) and ultimately write values to the controlled process.

An issue was discovered in Zammad before 3.4.1. There is an authentication bypass in the SSO endpoint via a crafted header, when SSO is not configured. An attacker can create a valid and authenticated session that can be used to perform any actions in the name of other users.

An issue was discovered on Western Digital My Cloud OS 5 devices before 5.07.118. A NAS Admin authentication bypass vulnerability could allow an unauthenticated user to gain access to the device.

AVE DOMINAplus <=1.10.x suffers from an authentication bypass vulnerability due to missing control check when directly calling the autologin GET parameter in changeparams.php script. Setting the autologin value to 1 allows an unauthenticated attacker to permanently disable the authentication security control and access the management interface with admin privileges without providing credentials.

newbee-mall all versions are affected by incorrect access control to remotely gain privileges through AdminLoginInterceptor.java. The authentication logic of the system's background /admin is in code AdminLoginInterceptor, which can be bypassed.

An issue was discovered in the box application on HiSilicon based IPTV/H.264/H.265 video encoders. The file-upload endpoint does not enforce authentication. Attackers can send an unauthenticated HTTP request to upload a custom firmware component, possibly in conjunction with command injection, to achieve arbitrary code execution.

Because of unauthenticated password changes in ForLogic Qualiex v1 and v3, customer and admin permissions and data can be accessed via a simple request. NOTE: as of 2025-10-14, the Supplier's perspective is that this is "corrected in all maintained versions. Password reset requests are validated against registered user emails and require a valid, short-lived token."

SICK Package Analytics software up to and including version V04.0.0 are vulnerable to an authentication bypass by directly interfacing with the REST API. An attacker can send unauthorized requests, bypass current authentication controls presented by the application and could potentially write files without authentication.

Incorrect Access Control vulnerability in Online Book Store v1.0 via admin_verify.php, which could let a remote mailicious user bypass authentication and obtain sensitive information.

HashiCorp Vault and Vault Enterprise versions 0.8.3 and newer, when configured with the GCP GCE auth method, may be vulnerable to authentication bypass. Fixed in 1.2.5, 1.3.8, 1.4.4, and 1.5.1.

Authentication Bypass Using an Alternate Path or Channel in temi Robox OS prior to120, temi Android app up to 1.3.7931 allows remote attackers to gain elevated privileges on the temi and have it automatically answer the attacker's calls, granting audio, video, and motor control via unspecified vectors.

Apache Shiro before 1.7.0, when using Apache Shiro with Spring, a specially crafted HTTP request may cause an authentication bypass.

ConnectWise Automate through 2020.x has insufficient validation on certain authentication paths, allowing authentication bypass via a series of attempts. This was patched in 2020.7 and in a hotfix for 2019.12.

Terascale Open-Source Resource and Queue Manager (aka TORQUE Resource Manager) 3.0.1 and earlier allows remote attackers to bypass host-based authentication and submit arbitrary jobs via a modified PBS_O_HOST variable to the qsub program.

An issue was discovered on D-Link DIR-878 1.12B01 devices. At the /HNAP1 URI, an attacker can log in with a blank password.

It is possible to enumerate access card credentials via an unauthenticated network connection to the server in versions of Command Centre v8.20 prior to v8.20.1166(MR3), versions of 8.10 prior to v8.10.1211(MR5), versions of 8.00 prior to v8.00.1228(MR6), all versions of 7.90 and earlier. These credentials can then be used to encode low security cards to be used by the system where insecure card technologies are supported.

Lack of access control in Nakivo Backup & Replication Transporter version 9.4.0.r43656 allows remote users to access unencrypted backup repositories and the Nakivo Controller configuration via a network accessible transporter service. It is also possible to create or delete backup repositories.

iked in OpenIKED, as used in OpenBSD through 6.7, allows authentication bypass because ca.c has the wrong logic for checking whether a public key matches.

OpenClinic GA versions 5.09.02 and 5.89.05b may allow an attacker to bypass client-side access controls or use a crafted request to initiate a session with limited functionality, which may allow execution of admin functions such as SQL queries.

A vulnerability was found in Netgear WNR614 1.1.0.28_1.0.1WW. It has been classified as critical. This affects an unknown part of the component URL Handler. The manipulation with the input %00currentsetting.htm leads to improper authentication. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. This issue appears to have been circulating as an 0day since 2024.

The previous default setting for Airflow's Experimental API was to allow all API requests without authentication, but this poses security risks to users who miss this fact. From Airflow 1.10.11 the default has been changed to deny all requests by default and is documented at https://airflow.apache.org/docs/1.10.11/security.html#api-authentication. Note this change fixes it for new installs but existing users need to change their config to default `[api]auth_backend = airflow.api.auth.backend.deny_all` as mentioned in the Updating Guide: https://github.com/apache/airflow/blob/1.10.11/UPDATING.md#experimental-api-will-deny-all-request-by-default

An improper authentication vulnerability in SSL VPN in FortiOS 6.4.0, 6.2.0 to 6.2.3, 6.0.9 and below may result in a user being able to log in successfully without being prompted for the second factor of authentication (FortiToken) if they changed the case of their username.

A vulnerability, which was classified as critical, was found in quequnlong shiyi-blog up to 1.2.1. Affected is an unknown function of the file /api/sys/user/verifyPassword/ of the component Administrator Backend. The manipulation leads to improper authentication. It is possible to launch the attack remotely. 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.

Veritas APTARE versions prior to 10.4 included code that bypassed the normal login process when specific authentication credentials were provided to the server.

vBulletin before 5.5.6pl1, 5.6.0 before 5.6.0pl1, and 5.6.1 before 5.6.1pl1 has incorrect access control.

Improper Authentication vulnerability in Samsung Electronics MagicINFO 9 Server allows Authentication Bypass.This issue affects MagicINFO 9 Server: less than 21.1080.0.

In JetBrains Space through 2020-04-22, the password authentication implementation was insecure.

In IQrouter through 3.3.1, there is a root user without a password, which allows attackers to gain full remote access via SSH. Note: The vendor claims that this vulnerability can only occur on a brand-new network that, after initiating the forced initial configuration (which has a required step for setting a secure password on the system), makes this CVE invalid. This vulnerability is “true for any unconfigured release of OpenWRT, and true of many other new Linux distros prior to being configured for the first time”

Multiple authentication bypass vulnerabilities in the /cgi-bin/ endpoint of the WAVLINK WN530H4 M30H4.V5030.190403 allow an attacker to leak router settings, change configuration variables, and cause denial of service via an unauthenticated endpoint.

An issue was discovered in CIPPlanner CIPAce 9.1 Build 2019092801. Upload.ashx allows remote attackers to execute arbitrary code by uploading and executing an ASHX file.

The Web portal of the WiFi module of VPNCrypt M10 2.6.5 allows unauthenticated users to send HTTP POST request to several critical Administrative functions such as, changing credentials of the Administrator account or connect the product to a rogue access point.

An issue was discovered in the Responsive Poll through 1.3.4 for Wordpress. It allows an unauthenticated user to manipulate polls, e.g., delete, clone, or view a hidden poll. This is due to the usage of the callback wp_ajax_nopriv function in Includes/Total-Soft-Poll-Ajax.php for sensitive operations.

The web server in Phoenix Contact ILC PLCs allows access to read and write PLC variables without authentication.

Improper Authorization vulnerability of Pepperl+Fuchs P+F Comtrol RocketLinx ES7510-XT, ES8509-XT, ES8510-XT, ES9528-XTv2, ES7506, ES7510, ES7528, ES8508, ES8508F, ES8510, ES8510-XTE, ES9528/ES9528-XT (all versions) allows unauthenticated device administration.

The Micro Air Vehicle Link (MAVLink) protocol presents no authentication mechanism on its version 1.0 (nor authorization) whichs leads to a variety of attacks including identity spoofing, unauthorized access, PITM attacks and more. According to literature, version 2.0 optionally allows for package signing which mitigates this flaw. Another source mentions that MAVLink 2.0 only provides a simple authentication system based on HMAC. This implies that the flying system overall should add the same symmetric key into all devices of network. If not the case, this may cause a security issue, that if one of the devices and its symmetric key are compromised, the whole authentication system is not reliable.

On F5 BIG-IP 16.1.x versions prior to 16.1.2.2, 15.1.x versions prior to 15.1.5.1, 14.1.x versions prior to 14.1.4.6, 13.1.x versions prior to 13.1.5, and all 12.1.x and 11.6.x versions, undisclosed requests may bypass iControl REST authentication. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated

IRC5 exposes an ftp server (port 21). Upon attempting to gain access you are challenged with a request of username and password, however you can input whatever you like. As long as the field isn't empty it will be accepted.

WebAccess/NMS (versions prior to 3.0.2) allows an unauthenticated remote user to create a new admin account.

A vulnerability was determined in Technostrobe HI-LED-WR120-G2 5.5.0.1R6.03.30. The affected element is the function index_config of the file /LoginCB. This manipulation causes improper authentication. It is possible to initiate the attack remotely. The exploit has been publicly disclosed and may be utilized. The vendor was contacted early about this disclosure but did not respond in any way.

A vulnerability was found in PuneethReddyHC Online Shopping System Advanced 1.0. It has been declared as critical. Affected by this vulnerability is an unknown functionality of the file /admin/reg.php of the component Admin Registration. The manipulation leads to improper authentication. The attack can be launched remotely. The identifier VDB-232009 was assigned to this vulnerability.

A vulnerability was found in OneNav up to 0.9.33. It has been classified as critical. This affects an unknown part of the file /index.php?c=api of the component API. The manipulation of the argument X-Token leads to improper authentication. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. The identifier VDB-249765 was assigned to this vulnerability.

A vulnerability, which was classified as critical, has been found in Gowabby HFish 0.1. This issue affects the function LoadUrl of the file \view\url.go. The manipulation of the argument r leads to improper authentication. The attack may be initiated remotely. The exploit has been disclosed to the public and may be used.

The SiteGround Security plugin for WordPress is vulnerable to authentication bypass that allows unauthenticated users to log in as administrative users due to missing identity verification on the 2FA back-up code implementation that logs users in upon success. This affects versions up to, and including, 1.2.5.

The SolarWinds Orion API is vulnerable to an authentication bypass that could allow a remote attacker to execute API commands. This vulnerability could allow a remote attacker to bypass authentication and execute API commands which may result in a compromise of the SolarWinds instance. SolarWinds Orion Platform versions 2019.4 HF 5, 2020.2 with no hotfix installed, and 2020.2 HF 1 are affected.

A vulnerability was found in SAP Information System 1.0 which has been rated as critical. Affected by this issue is the file /SAP_Information_System/controllers/add_admin.php. An unauthenticated attacker is able to create a new admin account for the web application with a simple POST request. Exploit details were disclosed.