Weakness (CWE)
CWE-287: Improper Authentication
When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.
How to prevent it (1 mitigation)
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Architecture and Design
Use an authentication framework or library such as the OWASP ESAPI Authentication feature.
Source: MITRE CWE-287
3,178 results · Feed
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Unscored —
An Improper Authentication issue was discovered in Newport XPS-Cx and XPS-Qx. An attacker may bypass authentication by …
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Critical 9.8
Opendaylight will authenticate any username and password combination
The custom authentication realm used by karaf-tomcat's "opendaylight" realm in Opendaylight before Helium SR3 will authenticate any username and password combination.
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Unscored —CVE-2017-3167 EPSS 20%
In Apache httpd 2.2.x before 2.2.33 and 2.4.x before 2.4.26, use of the ap_get_basic_auth_pw() by third-party modules o…
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Critical 9.8
SKYSEA Client View Ver.11.221.03 and earlier allows remote code execution via a flaw in processing authentication on th…
KEV Oct 14, 2025 -
High 7.3
Improper Authentication in Spring Security
The ActiveDirectoryLdapAuthenticator in Spring Security 3.2.0 to 3.2.1 and 3.1.0 to 3.1.5 does not check the password length. If the directory allows anonymous binds then it may incorrectly authenticate a user who supplies an empty password.
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Critical 9.8
Authorization Bypass in Spring Security
When using the CAS Proxy ticket authentication from Spring Security 3.1 to 3.2.4 a malicious CAS Service could trick another CAS Service into authenticating a proxy ticket that was not associated. This is due to the fact that the proxy ticket authentication u…
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Unscored —
An Improper Authentication issue was discovered in Phoenix Contact GmbH mGuard firmware versions 8.3.0 to 8.4.2. An att…
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Medium 6.8
Dolibarr allows password changes without supplying the current password
Dolibarr ERP/CRM 4.0.4 allows password changes without supplying the current password, which makes it easier for physically proximate attackers to obtain access via an unattended workstation.
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Critical 9.1
GeniXCMS Arbitrary User Password Reset Vulnerability
forgotpassword.php in GeniXCMS 1.0.2 lacks a rate limit, which might allow remote attackers to cause a denial of service (login inability) or possibly conduct Arbitrary User Password Reset attacks via a series of requests.
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Critical 9.8
An Improper Authentication issue was discovered in Hikvision DS-2CD2xx2F-I Series V5.2.0 build 140721 to V5.4.0 build 1…
KEV Mar 5, 2026 -
Unscored —
A vulnerability in the session identification management functionality of the web-based GUI of Cisco Integrated Managem…
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Critical 9.8CVE-2016-1908 EPSS 14%
The client in OpenSSH before 7.2 mishandles failed cookie generation for untrusted X11 forwarding and relies on the loc…
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Medium 6.5
Improper Authentication in Apache Hadoop
Apache Hadoop 0.23.x before 0.23.11 and 2.x before 2.4.1, as used in Cloudera CDH 5.0.x before 5.0.2, do not check authorization for the (1) refreshNamenodes, (2) deleteBlockPool, and (3) shutdownDatanode HDFS admin commands, which allows remote authenticated…
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Medium 4.9
Chameleon in Plone allows Authentication Bypass
Chameleon (five.pt) in Plone 5.0rc1 through 5.1a1 allows remote authenticated users to bypass Restricted Python by leveraging permissions to create or edit templates.
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Critical 9.8
Symfony Authentication Bypass
Symfony before 2.8.6 and 3.x before 3.0.6 allows remote attackers to bypass authentication by logging in with an empty password and valid username, which triggers an unauthenticated bind.
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Unscored —
A vulnerability in the web-based GUI of Cisco Prime Home could allow an unauthenticated, remote attacker to bypass auth…
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Medium 5.6
Salt Insecure configuration of PAM external authentication service
Salt before 2015.5.10 and 2015.8.x before 2015.8.8, when PAM external authentication is enabled, allows attackers to bypass the configured authentication service by passing an alternate service with a command sent to LocalClient.
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High 8.1CVE-2016-7191 EPSS 29%
Authentication Bypass in passport-azure-ad
The Microsoft Azure Active Directory Passport (aka Passport-Azure-AD) library 1.x before 1.4.6 and 2.x before 2.0.1 for Node.js does not recognize the validateIssuer setting, which allows remote attackers to bypass authentication via a crafted token.
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Critical 9.1
AMQP 0-8, 0-9, 0-91, and 0-10 connection handling in Apache Qpid Java before 6.0.3 might allow remote attackers to bypass authentication
The AMQP 0-8, 0-9, 0-91, and 0-10 connection handling in Apache Qpid Java before 6.0.3 might allow remote attackers to bypass authentication and consequently perform actions via vectors related to connection state logging.
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Medium 5.9
Improper Input Validation in org.apache.qpid:qpid-broker
PlainSaslServer.java in Apache Qpid Java before 6.0.3, when the broker is configured to allow plaintext passwords, allows remote attackers to cause a denial of service (broker termination) via a crafted authentication attempt, which triggers an uncaught excep…
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Critical 9.8
The Admin UI in Apache Ranger before 0.5.1 does not properly handle authentication requests that lack a password
The Admin UI in Apache Ranger before 0.5.1 does not properly handle authentication requests that lack a password, which allows remote attackers to bypass authentication by leveraging knowledge of a valid username.
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High 8.3
High severity vulnerability that affects org.apache.hive:hive, org.apache.hive:hive-exec, and org.apache.hive:hive-service
The authorization framework in Apache Hive 1.0.0, 1.0.1, 1.1.0, 1.1.1, 1.2.0 and 1.2.1, on clusters protected by Ranger and SqlStdHiveAuthorization, allows attackers to bypass intended parent table access restrictions via unspecified partition-level operation…
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High 7.3
Improper Authentication in org.apache.hive:hive, org.apache.hive:hive-exec, and org.apache.hive:hive-service
The LDAP implementation in HiveServer2 in Apache Hive before 1.0.1 and 1.1.x before 1.1.1, as used in IBM InfoSphere BigInsights 3.0, 3.0.0.1, and 3.0.0.2 and other products, mishandles simple unauthenticated and anonymous bind configurations, which allows re…
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Critical 9.8
Juniper ScreenOS 6.2.0r15 through 6.2.0r18, 6.3.0r12 before 6.3.0r12b, 6.3.0r13 before 6.3.0r13b, 6.3.0r14 before 6.3.0…
KEV Oct 2, 2025 -
Medium —
Jenkins does not Restrict Reserved Names Allowing for Privilege Escalation
The HudsonPrivateSecurityRealm class in Jenkins before 1.600 and LTS before 1.596.1 does not restrict access to reserved names when using the "Jenkins' own user database" setting, which allows remote attackers to gain privileges by creating a reserved name.
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High —
Improper Authentication in Apache WSS4J
The LDAPLoginModule implementation in the Java Authentication and Authorization Service (JAAS) in Apache ActiveMQ 5.x before 5.10.1 allows remote attackers to bypass authentication by logging in with an empty password and valid username, which triggers an una…
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Medium —
Improper Authentication in Apache WSS4J
Apache WSS4J before 1.6.17 and 2.x before 2.0.2, as used in Apache CXF 2.7.x before 2.7.13 and 3.0.x before 3.0.2, when using TransportBinding, does not properly enforce the SAML SubjectConfirmation method security semantics, which allows remote attackers to …
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Medium —
Zend Access Restriction Bypass
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.
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Medium —
Jenkins session fixation vulnerability
Session fixation vulnerability in Jenkins before 1.551 and LTS before 1.532.2 allows remote attackers to hijack web sessions via vectors involving the "override" of Jenkins cookies.
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Medium —
Jenkins does not invalidate the API token when a user is deleted
Jenkins before 1.551 and LTS before 1.532.2 does not invalidate the API token when a user is deleted, which allows remote authenticated users to retain access via the token.
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Medium —
TYPO3 powermail extension allows remote attackers to bypass CAPTCHA protection mechanism
The powermail extension 2.x before 2.0.11 for TYPO3 allows remote attackers to bypass the CAPTCHA protection mechanism via unspecified vectors.
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Medium —
Improper Authentication in Hibernate Validator
ReflectionHelper (org.hibernate.validator.util.ReflectionHelper) in Hibernate Validator 4.1.0 before 4.2.1, 4.3.x before 4.3.2, and 5.x before 5.1.2 allows attackers to bypass Java Security Manager (JSM) restrictions and execute restricted reflection calls vi…
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Medium 6.4
Schneider Electric SCADA Expert ClearSCADA Improper Authentication
Schneider Electric StruxureWare SCADA Expert ClearSCADA 2010 R3 through 2014 R1 allows remote attackers to read database records by leveraging access to the guest account.
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Medium 6.5
Django Middleware Enables Session Hijacking
The contrib.auth.middleware.RemoteUserMiddleware middleware in Django before 1.4.14, 1.5.x before 1.5.9, 1.6.x before 1.6.6, and 1.7 before release candidate 3, when using the contrib.auth.backends.RemoteUserBackend backend, allows remote authenticated users …
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Critical —
TYPO3 vulnerable to authentication bypass via leveraging knowledge of password hash
The Authentication component in TYPO3 before 6.2, when salting for password hashing is disabled, does not require knowledge of the cleartext password if the password hash is known, which allows remote attackers to bypass authentication and gain access to the …
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Medium —
TYPO3 Improper Session Invalidation
The Authentication component in TYPO3 6.2.0 before 6.2.3 does not properly invalidate timed out user sessions, which allows remote attackers to bypass authentication via unspecified vectors.
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Medium —
Moodle creates a MoodleMobile web-service token with an infinite lifetime
login/token.php in Moodle through 2.3.11, 2.4.x before 2.4.10, 2.5.x before 2.5.6, and 2.6.x before 2.6.3 creates a MoodleMobile web-service token with an infinite lifetime, which makes it easier for remote attackers to hijack sessions via a brute-force attac…
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Critical —
API Admin Auth Weakness in tomato
The admin API in the tomato module before 0.0.6 for Node.js does not properly check the access key when it is set to a string, which allows remote attackers to bypass authentication via a string in the access-key header that partially matches config.master.ap…
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Medium —
OpenStack Neutron Improper Authentication vulnerability
The l3-agent in OpenStack Neutron 2012.2 before 2013.2.3 does not check the tenant id when creating ports, which allows remote authenticated users to plug ports into the routers of arbitrary tenants via the device id in a port-create command.
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Critical 9.3
Festo CECX-X-(C1/M1) Controller Improper Authentication
The Festo CECX-X-C1 Modular Master Controller with CoDeSys and CECX-X-M1 Modular Controller with CoDeSys and SoftMotion do not require authentication for connections to certain TCP ports, which allows remote attackers to (1) modify the configuration via a req…