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
188 results · Clear filters · Feed
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Critical 9.8
SaltStack Salt Improper Authentication vulnerability
An issue was discovered in through SaltStack Salt before 3002.5. salt-api does not honor eauth credentials for the wheel_async client. Thus, an attacker can remotely run any wheel modules on the master.
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Critical 9.8
Authentication bypass in Apache Shiro
Apache Shiro before 1.7.1, when using Apache Shiro with Spring, a specially crafted HTTP request may cause an authentication bypass.
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Critical 9.8
Improper Authentication in InfluxDB
InfluxDB before 1.7.6 has an authentication bypass vulnerability in the authenticate function in services/httpd/handler.go because a JWT token may have an empty SharedSecret (aka shared secret).
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Critical 9.8
Authentication bypass in Apache Airflow
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 …
KEV Jan 18, 2022 -
High 7.5CVE-2020-26160 Public exploit
Authorization bypass in github.com/dgrijalva/jwt-go
jwt-go before 4.0.0-preview1 allows attackers to bypass intended access restrictions in situations with []string{} for m["aud"] (which is allowed by the specification). Because the type assertion fails, "" is the value of aud. This is a security problem if th…
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High 7.5
Authentication bypass in Apache Shiro
Apache Shiro before 1.6.0, when using Apache Shiro, a specially crafted HTTP request may cause an authentication bypass.
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Critical 9.8
Improper Authentication in Apache Spark
In Apache Spark 2.4.5 and earlier, a standalone resource manager's master may be configured to require authentication (spark.authenticate) via a shared secret. When enabled, however, a specially-crafted RPC to the master can succeed in starting an application…
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Critical 9.8
Improper Authentication in Apache Shiro
Apache Shiro before 1.5.3, when using Apache Shiro with Spring dynamic controllers, a specially crafted request may cause an authentication bypass.
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Critical 9.0
IBM Data Risk Manager 2.0.1, 2.0.2, 2.0.3, 2.0.4, 2.0.5, and 2.0.6 could allow a remote attacker to bypass security res…
KEV Nov 3, 2021 -
High 8.8
A remote code execution vulnerability exists in Microsoft Exchange software when the software fails to properly handle …
KEV Nov 3, 2021 -
Medium 5.9CVE-2013-5123 Public exploit
Improper Authentication in pip
The mirroring support (-M, --use-mirrors) in Python Pip before 1.5 uses insecure DNS querying and authenticity checks which allows attackers to perform man-in-the-middle attacks.
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Critical 9.8
Cisco Integrated Management Controller Supervisor, Cisco UCS Director, and Cisco UCS Director Express for Big Data Authentication Bypass Vulnerability
A vulnerability in the web-based management interface of Cisco Integrated Management Controller (IMC) Supervisor, Cisco UCS Director, and Cisco UCS Director Express for Big Data could allow an unauthenticated, remote attacker to acquire a valid session token …
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Unscored —
A CWE-287: Improper Authentication vulnerability exists in the NET55XX Encoder with firmware prior to version 2.1.9.7 w…
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High 7.7CVE-2017-11427 Public exploit
Multiple SAML libraries may allow authentication bypass via incorrect XML canonicalization and DOM traversal
OneLogin PythonSAML 2.3.0 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 atta…
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High 7.8
An elevation of privilege vulnerability exists when Windows improperly handles authentication requests, aka "Microsoft …
KEV Mar 15, 2022 -
High 7.5
Unauthenticated File Read in PHP Proxy
In PHP Proxy 3.0.3, any user can read files from the server without authentication due to an index.php?q=file:/// LFI URI, a different vulnerability than CVE-2018-19246.
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Critical 9.8
Grafana Authentication Bypass
Grafana 2.x, 3.x, and 4.x before 4.6.4 and 5.x before 5.2.3 allows authentication bypass because an attacker can generate a valid "remember me" cookie knowing only a username of an LDAP or OAuth user.
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Medium 4.2
org.apache.spark:spark-core_2.10 and org.apache.spark:spark-core_2.11 Improper Authentication vulnerability
From version 1.3.0 onward, Apache Spark's standalone master exposes a REST API for job submission, in addition to the submission mechanism used by spark-submit. In standalone, the config property 'spark.authenticate.secret' establishes a shared secret for aut…
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High 8.8
phpMyAdmin Improper Authentication
An issue was discovered in phpMyAdmin 4.8.x before 4.8.2, in which an attacker can include (view and potentially execute) files on the server. The vulnerability comes from a portion of code where pages are redirected and loaded within phpMyAdmin, and an impro…
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Critical 9.8
An issue was discovered on Dasan GPON home routers. It is possible to bypass authentication simply by appending "?image…
KEV Mar 31, 2022 -
Critical 9.8
Paramiko not properly checking authentication before processing other requests
transport.py in the SSH server implementation of Paramiko before 1.17.6, 1.18.x before 1.18.5, 2.0.x before 2.0.8, 2.1.x before 2.1.5, 2.2.x before 2.2.3, 2.3.x before 2.3.2, and 2.4.x before 2.4.1 does not properly check whether authentication is completed b…
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Critical 9.8
The ping tool in multiple D-Link and TRENDnet devices allow remote attackers to execute arbitrary code via the ping_add…
KEV Mar 25, 2022 -
Unscored —
A vulnerability in synotheme_upload.php in Synology Photo Station before 6.7.3-3432 and 6.3-2967 allows remote attacker…
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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 -
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 -
Critical 9.8
Adobe ColdFusion 9.0, 9.0.1, and 9.0.2, when a password is not configured, allows remote attackers to bypass authentica…
KEV Mar 7, 2022 -
Critical 9.4CVE-2012-5864 Public exploit
Sinapsi eSolar Improper Authentication
These Sinapsi devices do not check if users that visit pages within the device have properly authenticated. By directly visiting the pages within the device, attackers can gain unauthorized access with administrative privileges.
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Medium —CVE-2009-1595 Public exploit
Ignite Realtime Openfire Allows Users to Change Passwords of Arbitrary Accounts
The jabber:iq:auth implementation in IQAuthHandler.java in Ignite Realtime Openfire before 3.6.4 allows remote authenticated users to change the passwords of arbitrary accounts via a modified username element in a passwd_change action.