The OpenID module in Drupal 6.x before 6.18, and the OpenID module 5.x before 5.x-1.4 for Drupal, violates the OpenID 2.0 protocol by not checking for reuse of openid.response_nonce values, which allows remote attackers to bypass authentication by leveraging an assertion from an OpenID provider.

In GE Aestiva and Aespire versions 7100 and 7900, a vulnerability exists where serial devices are connected via an added unsecured terminal server to a TCP/IP network configuration, which could allow an attacker to remotely modify device configuration and silence alarms.

MiniCMS 1.10 allows file deletion via /mc-admin/post.php?state=delete&delete= because the authentication check occurs too late.

An improper authentication vulnerability in CA Privileged Access Manager 2.x allows attackers to spoof IP addresses in a log file.

An issue was discovered in Western Bridge Cobub Razor 0.7.2. Authentication is not required for /index.php?/install/installation/createuserinfo requests, resulting in account creation.

A Security Feature Bypass vulnerability exists in ASP.NET when the number of incorrect login attempts is not validated, aka "ASP.NET Security Feature Bypass Vulnerability." This affects ASP.NET, ASP.NET Core 1.1, ASP.NET Core 1.0, ASP.NET Core 2.0, ASP.NET MVC 5.2.

Duo Network Gateway 1.2.9 and earlier may incorrectly utilize the results of XML DOM traversal and canonicalization APIs in such a way that an attacker may be able to manipulate the SAML data without invalidating the cryptographic signature, allowing the attack to potentially bypass authentication to SAML service providers.

A flaw in the profile section of Online Voting System 1.0 allows an unauthenticated user to set an arbitrary password for other accounts.

Wizkunde SAMLBase may incorrectly utilize the results of XML DOM traversal and canonicalization APIs in such a way that an attacker may be able to manipulate the SAML data without invalidating the cryptographic signature, allowing the attack to potentially bypass authentication to SAML service providers.

Webservice-DIC yoyaku_v41 allows remote attackers to bypass authentication and complete a conference-room reservation via unspecified vectors, as demonstrated by an "unintentional reservation."

ZTE ZXDSL 831CII allows remote attackers to bypass authentication via a direct request to (1) main.cgi, (2) adminpasswd.cgi, (3) userpasswd.cgi, (4) upload.cgi, (5) conprocess.cgi, or (6) connect.cgi.

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.

CAPTCHA bypass vulnerability in MantisBT before 1.2.19.

Graylog2 before 0.92 allows remote attackers to bypass LDAP authentication via crafted wildcards.

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.

DokuWiki 2014-05-05a and earlier, when using Active Directory for LDAP authentication, allows remote attackers to bypass authentication via a user name and password starting with a null (\0) character, which triggers an anonymous bind.

The remote SVN views functionality (lib/vclib/svn/svn_ra.py) in ViewVC before 1.1.15 does not properly perform authorization, which allows remote attackers to bypass intended access restrictions via unspecified vectors.

Apache CloudStack 4.3.x before 4.3.2 and 4.4.x before 4.4.2 allows remote attackers to bypass authentication via a login request without a password, which triggers an unauthenticated bind.

The (1) Zend_Ldap class in Zend before 1.12.9 and (2) Zend\Ldap component in Zend 2.x before 2.2.8 and 2.3.x before 2.3.3 allows remote attackers to bypass authentication via a password starting with a null byte, which triggers an unauthenticated bind.

An issue was discovered in GitLab Community and Enterprise Edition before 11.4.13, 11.5.x before 11.5.6, and 11.6.x before 11.6.1. It has Incorrect Access Control.

The SimpleCaptcha implementation in Liferay Portal 7.3.4, 7.3.5 and Liferay DXP 7.3 before fix pack 1 does not invalidate CAPTCHA answers after it is used, which allows remote attackers to repeatedly perform actions protected by a CAPTCHA challenge by reusing the same CAPTCHA answer.

RubyGem omniauth-facebook has an access token security vulnerability

connoppp.cgi on ZTE ZXDSL 831CII devices does not require HTTP Basic Authentication, which allows remote attackers to modify the PPPoE configuration or set up a malicious configuration via a GET request.

This affects all versions of package react-adal. It is possible for a specially crafted JWT token and request URL can cause the nonce, session and refresh values to be incorrectly validated, causing the application to treat an attacker-generated JWT token as authentic. The logical defect is caused by how the nonce, session and refresh values are stored in the browser local storage or session storage. Each key is automatically appended by ||. When the received nonce and session keys are generated, the list of values is stored in the browser storage, separated by ||, with || always appended to the end of the list. Since || will always be the last 2 characters of the stored values, an empty string ("") will always be in the list of the valid values. Therefore, if an empty session parameter is provided in the callback URL, and a specially-crafted JWT token contains an nonce value of "" (empty string), then adal.js will consider the JWT token as authentic.

The iThemes Security (formerly Better WP Security) plugin before 7.7.0 for WordPress does not enforce a new-password requirement for an existing account until the second login occurs.