getID3() before 1.9.8, as used in ownCloud Server before 5.0.15 and 6.0.x before 6.0.2, allows remote attackers to read arbitrary files, cause a denial of service, or possibly have other impact via an XML External Entity (XXE) attack.

Incomplete blacklist vulnerability in ajax/upload.php in ownCloud before 5.0, when running on Windows, allows remote authenticated users to bypass intended access restrictions, upload files with arbitrary names, and execute arbitrary code via an Alternate Data Stream (ADS) syntax in the filename parameter, as demonstrated using .htaccess::$DATA to upload a PHP program.

The user_openid app in ownCloud Server before 5.0.15 allows remote attackers to obtain access by leveraging an insecure OpenID implementation.

ownCloud Server before 5.0.15 and 6.0.x before 6.0.2 allows remote attackers to conduct an LDAP injection attack via unspecified vectors, as demonstrated using a "login query."

Zend Framework, as used in ownCloud Server before 5.0.15 and 6.0.x before 6.0.2, allows remote attackers to read arbitrary files, cause a denial of service, or possibly have other impact via an XML External Entity (XXE) attack.

A receiver of a federated share with access to the database with ownCloud version before 10.8 could update the permissions and therefore elevate their own permissions.

ownCloud Server before 6.0.3 does not properly check permissions, which allows remote authenticated users to (1) access the contacts of other users via the address book or (2) rename files via unspecified vectors.

SabreDAV before 1.7.11, as used in ownCloud Server before 5.0.15 and 6.0.x before 6.0.2, allows remote attackers to read arbitrary files, cause a denial of service, or possibly have other impact via an XML External Entity (XXE) attack.

PHPExcel before 1.8.0, as used in ownCloud Server before 5.0.15 and 6.0.x before 6.0.2, does not disable external entity loading in libxml, which allows remote attackers to read arbitrary files, cause a denial of service, or possibly have other impact via an XML External Entity (XXE) attack.

PHPDocX, as used in ownCloud Server before 5.0.15 and 6.0.x before 6.0.2, allows remote attackers to read arbitrary files, cause a denial of service, or possibly have other impact via an XML External Entity (XXE) attack.

An issue was discovered in ownCloud before 10.4. An attacker can bypass authentication on a password-protected image by displaying its preview.

The user_ldap (aka LDAP user and group backend) application in ownCloud before 5.0.18, 6.x before 6.0.6, and 7.x before 7.0.3 allows remote attackers to bypass authentication via a null byte in the password and a valid user name, which triggers an unauthenticated bind.

The FTP backend in user_external in ownCloud Server before 5.0.18 and 6.x before 6.0.6 allows remote attackers to bypass intended authentication requirements via a crafted password.

Session fixation vulnerability in ownCloud before 6.0.2, when PHP is configured to accept session parameters through a GET request, allows remote attackers to hijack web sessions via unspecified vectors.

An issue was discovered in ownCloud owncloud/core before 10.13.1. An attacker can access, modify, or delete any file without authentication if the username of a victim is known, and the victim has no signing-key configured. This occurs because pre-signed URLs can be accepted even when no signing-key is configured for the owner of the files. The earliest affected version is 10.6.0.

Nextcloud Server before 9.0.54 and 10.0.1 & ownCloud Server before 9.1.2, 9.0.6, and 8.2.9 suffer from SMB User Authentication Bypass. Nextcloud/ownCloud include an optional and not by default enabled SMB authentication component that allows authenticating users against an SMB server. This backend is implemented in a way that tries to connect to a SMB server and if that succeeded consider the user logged-in. The backend did not properly take into account SMB servers that have any kind of anonymous auth configured. This is the default on SMB servers nowadays and allows an unauthenticated attacker to gain access to an account without valid credentials. Note: The SMB backend is disabled by default and requires manual configuration in the Nextcloud/ownCloud config file. If you have not configured the SMB backend then you're not affected by this vulnerability.

Monkey HTTP Daemon: broken user name authentication

A vulnerability classified as critical has been found in ColumbiaSoft Document Locator. This affects an unknown part of the file /api/authentication/login of the component WebTools. The manipulation of the argument Server leads to improper authentication. It is possible to initiate the attack remotely. Upgrading to version 7.2 SP4 and 2021.1 is able to address this issue. It is recommended to upgrade the affected component. The identifier VDB-243729 was assigned to this vulnerability.

A weakness has been identified in detronetdip E-commerce 1.0.0. Impacted is an unknown function of the file /Admin/assets/backend/seller/add_seller.php of the component Account Creation Endpoint. Executing a manipulation of the argument email can lead to missing authentication. The attack can be executed remotely. The exploit has been made available to the public and could be used for attacks. The project was informed of the problem early through an issue report but has not responded yet.

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.

A vulnerability in Cisco Webex Meetings and Cisco Webex Meetings Server could allow an unauthenticated, remote attacker to gain unauthorized access to a vulnerable Webex site. The vulnerability is due to improper handling of authentication tokens by a vulnerable Webex site. An attacker could exploit this vulnerability by sending crafted requests to a vulnerable Cisco Webex Meetings or Cisco Webex Meetings Server site. If successful, the attacker could gain the privileges of another user within the affected Webex site.

A vulnerability classified as critical was found in SourceCodester One Church Management System 1.0. Affected by this vulnerability is an unknown functionality of the file /one_church/userregister.php. The manipulation leads to authentication bypass. The attack can be launched remotely.

OpenVPN 2.1 until v2.4.12 and v2.5.6 may enable authentication bypass in external authentication plug-ins when more than one of them makes use of deferred authentication replies, which allows an external user to be granted access with only partially correct credentials.

ask_password in Tomb 2.0 through 2.7 returns a warning when pinentry-curses is used and $DISPLAY is non-empty, causing affected users' files to be encrypted with "tomb {W] Detected DISPLAY, but only pinentry-curses is found." as the encryption key.

An authentication bypass exists in the web management interface in Belkin F5D8236-4 v2.

An issue was discovered on Western Digital My Cloud OS 5 devices before 5.06.115. A NAS Admin authentication bypass vulnerability could allow an unauthenticated user to execute privileged commands on the device via a cookie, because of insufficient validation of URI paths.

On Western Digital My Cloud OS 5 devices before 5.06.115, the NAS Admin dashboard has an authentication bypass vulnerability that could allow an unauthenticated user to execute privileged commands on the device.

Barco wePresent WiPG-1600W devices allow Authentication Bypass. Affected Version(s): 2.5.1.8. The Barco wePresent WiPG-1600W web interface does not use session cookies for tracking authenticated sessions. Instead, the web interface uses a "SEID" token that is appended to the end of URLs in GET requests. Thus the "SEID" would be exposed in web proxy logs and browser history. An attacker that is able to capture the "SEID" and originate requests from the same IP address (via a NAT device or web proxy) would be able to access the user interface of the device without having to know the credentials.

An issue was discovered in the MongoDB Simple LDAP plugin through 2020-10-02 for Percona Server when using the SimpleLDAP authentication in conjunction with Microsoft’s Active Directory, Percona has discovered a flaw that would allow authentication to complete when passing a blank value for the account password, leading to access against the service integrated with which Active Directory is deployed at the level granted to the authenticating account.

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.

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.

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.

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 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.

basic/BasicAuthProvider.java in AuthGuard before 0.9.0 allows authentication via an inactive identifier.

In SaltStack Salt through 3002, salt-netapi improperly validates eauth credentials and tokens. A user can bypass authentication and invoke Salt SSH.

A security flaw has been discovered in CRMEB up to 5.6.3. The affected element is the function appleLogin of the file crmeb/app/api/controller/v1/LoginController.php. Performing a manipulation of the argument openId results in improper authentication. The attack is possible to be carried out remotely. The exploit has been released to the public and may be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.

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."

A vulnerability has been identified in SiPass integrated V2.76 (All versions), SiPass integrated V2.80 (All versions), SiPass integrated V2.85 (All versions), Siveillance Identity V1.5 (All versions), Siveillance Identity V1.6 (All versions < V1.6.284.0). Affected applications insufficiently limit the access to the internal user authentication service. This could allow an unauthenticated remote attacker to trigger several actions on behalf of valid user accounts.

The SAML Single Sign-On (SSO) Service for Google Apps allows remote service providers to impersonate users at arbitrary service providers via vectors related to authentication responses that lack a request identifier and recipient field.

A flaw was found with the JWT token. A self-signed JWT token could be injected into the update manager and bypass the authentication process, thus could escalate privileges. This affects StarWind SAN and NAS build 1578 and StarWind Command Center build 6864.

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.

profileedit.php TaskDriver 1.3 and earlier allows remote attackers to bypass authentication and gain administrative access by setting the auth cookie to "fook!admin."

Zoho ManageEngine Access Manager Plus before 4203 allows anyone to view a few data elements (e.g., access control details) and modify a few aspects of the application state.

An Authentication Bypass vulnerability exists in Gitea before 1.5.0, which could let a malicious user gain privileges. If captured, the TOTP code for the 2FA can be submitted correctly more than once.

Zoho ManageEngine PAM360 before build 5303 allows attackers to modify a few aspects of application state because of a filter bypass in which authentication is not required.

Absolute Banner Manager .NET 4.0 allows remote attackers to bypass authentication and gain administrative access by setting a cookie to a certain value.

Zoho ManageEngine ServiceDesk Plus MSP before 10.5 Build 10534 is vulnerable to unauthenticated remote code execution due to a filter bypass in which authentication is not required.

admin/login.php in Stash 1.0.3 allows remote attackers to bypass authentication and gain administrative access by setting a bsm cookie.

T-Com Speedport 500V routers with firmware 1.31 allow remote attackers to bypass authentication and reconfigure the device via a LOGINKEY=TECOM cookie value.