Improper Authentication
CWE-287
When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct.
We track 1,836 vulnerabilities of this type. 100% are rated high or critical, and the average CVSS score is 8.7. 52 have been exploited in real attacks.
How this weakness is prevented
- Architecture and Design: Use an authentication framework or library such as the OWASP ESAPI Authentication feature.
Latest Improper Authentication vulnerabilities
- 8.1 High severity
caddy: Improper Authentication
Caddy is an extensible server platform that uses TLS by default. Prior to 2.11.4, forward_auth copy_headers deletes the exact client-supplied identity header before copying the trusted value from the auth gateway. But when the request later goes through php_fa
- 9.0 Critical severity
manageengine_adselfservice_plus: Improper Authentication
In ManageEngine ADSelfService Plus, RecoveryManager Plus, M365 Manager Plus, and ADAudit Plus, the SSO tickets generated to authenticate that session could be predicted by an unauthenticated user, leading to account takeover.
- 9.8 Critical severity
Langflow OSS: Improper Authentication
IBM Langflow OSS 1.0.0 through 1.8.4 could allow unauthenticated attackers to access protected MCP project resources and execute MCP operations due to improper authorization enforcement in the Streamable MCP transport endpoint.
- 7.3 High severity
WebSphere Application Server: Improper Authentication
IBM WebSphere Application Server 8.5 and 9.0 could allow a remote attacker to bypass authentication and gain unauthorized access to JAX-WS applications.
- 7.3 High severity
litellm: Improper Authentication
A vulnerability was determined in BerriAI litellm up to 1.82.2. This affects the function json.dumps of the file litellm/proxy/management_endpoints/ui_sso.py of the component SSO Debug Flow. Executing a manipulation can lead to missing authentication. The atta
- 9.8 Critical severity
litellm: Improper Authentication
A weakness has been identified in BerriAI litellm up to 1.59.8. Affected is the function UserAPIKeyAuth of the file litellm/proxy/_experimental/mcp_server/auth/user_api_key_auth_mcp.py of the component MCP Proxy. Executing a manipulation can lead to improper a
- 8.1 High severity
AVideo: Improper Authentication
AVideo through 29.0 contains an authorization bypass vulnerability in the Meet plugin's uploadRecordedVideo.json.php endpoint that derives the target users_id from the uploaded filename without verification. An attacker with knowledge of the Meet shared secret
- 7.5 High severity
quarkus: Incorrect Authorization
Quarkus is a Java framework for building cloud-native applications. Prior to versions 3.37.0, 3.36.3, 3.33.2.1, 3.33.3, 3.27.4.1, 3.27.5, and 3.20.6.2, Quarkus HTTP path-based authorization policies can be bypassed using encoded semicolons (%3B) to smuggle mat
- 8.1 High severity
Apache APISIX: Improper Authentication
Improper Authentication vulnerability in Apache APISIX. When the cas-auth plugin is used in a route, an attacker can possibly authenticate itself with credentials from a different source. This issue affects Apache APISIX: from 3.0.0 through 3.16.0. Users are r
- 9.1 Critical severity
relyra: Improper Authentication
Relyra is a strict-by-default SAML 2.0 Service Provider library for Elixir and Phoenix. Versions 1.0.0 and 1.1.0 accept forged SAML signatures because SignatureValue was not cryptographically verified before the library returned a successful authentication res
- 9.1 Critical severity
MCP Toolbox for Databases (googleapis/mcp-toolb…: Improper Authentication
An authentication bypass vulnerability exists in the generic opaque token validation path (validateOpaqueToken) of googleapis/mcp-toolbox. When the toolbox validates an opaque token via an OAuth 2.0 introspection endpoint (RFC 7662), it decodes the response in
- 9.1 Critical severity
MCP Toolbox for Databases (googleapis/mcp-toolb…: Improper Authentication
An authentication bypass vulnerability exists in the generic opaque token validation path (validateOpaqueToken) of googleapis/mcp-toolbox. When verifying an unparsed opaque token via an OAuth 2.0 introspection endpoint (RFC 7662), the toolbox decodes the respo
- 8.1 High severity
PowerFlex: Improper Authentication
Dell PowerFlex Manager, version(s) prior to 5.1.0.1, contain(s) an Improper Authentication vulnerability. An unauthenticated attacker with adjacent network access could potentially exploit this vulnerability, leading to Information disclosure, Information tamp
- 8.1 High severity
PowerFlex: Improper Authentication
Dell PowerFlex Manager, version(s) prior to 5.1.0.1, contain(s) an Improper Authentication vulnerability. An unauthenticated attacker with adjacent network access could potentially exploit this vulnerability, leading to Unauthorized access.
- 7.5 High severity
Rocket.Chat: Improper Authentication
Rocket.Chat in versions <8.5.1, <8.4.4, <8.3.6, <8.2.6, <8.1.6, <8.0.7, <7.13.9, and <7.10.13 is vulnerable to unauthenticated file deletion. The deleteFileMessage Meteor method permanently deletes any uploaded file by ID without requiring authentication. When
- 8.8 High severity
Oracle Outsourced Mfg for Discrete Industries: Improper Privilege Management
Vulnerability in the Oracle Outsourced Mfg for Discrete Industries product of Oracle E-Business Suite (component: Internal Operations). Supported versions that are affected are 12.2.3-12.2.15. Easily exploitable vulnerability allows low privileged attacker wit
- 8.8 High severity
Oracle Outsourced Mfg for Discrete Industries: Improper Privilege Management
Vulnerability in the Oracle Outsourced Mfg for Discrete Industries product of Oracle E-Business Suite (component: Internal Operations). Supported versions that are affected are 12.2.3-12.2.15. Easily exploitable vulnerability allows low privileged attacker wit
- 8.8 High severity
Oracle Project Portfolio Analysis: Improper Privilege Management
Vulnerability in the Oracle Project Portfolio Analysis product of Oracle E-Business Suite (component: Internal Operations). Supported versions that are affected are 12.2.3-12.2.15. Easily exploitable vulnerability allows low privileged attacker with network ac
- 8.8 High severity
Oracle Project Portfolio Analysis: Improper Privilege Management
Vulnerability in the Oracle Project Portfolio Analysis product of Oracle E-Business Suite (component: Internal Operations). Supported versions that are affected are 12.2.3-12.2.15. Easily exploitable vulnerability allows low privileged attacker with network ac
- 8.8 High severity
Oracle Quality: Improper Privilege Management
Vulnerability in the Oracle Quality product of Oracle E-Business Suite (component: Internal Operations). Supported versions that are affected are 12.2.3-12.2.15. Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to co
- 8.8 High severity
Oracle Quality: Improper Privilege Management
Vulnerability in the Oracle Quality product of Oracle E-Business Suite (component: Internal Operations). Supported versions that are affected are 12.2.3-12.2.15. Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to co
- 8.8 High severity
Oracle Process Manufacturing Process Planning: Improper Privilege Management
Vulnerability in the Oracle Process Manufacturing Process Planning product of Oracle E-Business Suite (component: Internal Operations). Supported versions that are affected are 12.2.3-12.2.15. Easily exploitable vulnerability allows low privileged attacker wit
- 8.8 High severity
Oracle Cost Management: Improper Privilege Management
Vulnerability in the Oracle Cost Management product of Oracle E-Business Suite (component: Cost Planning). Supported versions that are affected are 12.2.3-12.2.15. Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to
- 8.8 High severity
Oracle iSetup: Improper Privilege Management
Vulnerability in the Oracle iSetup product of Oracle E-Business Suite (component: General Ledger Update Transform, Reports). Supported versions that are affected are 12.2.3-12.2.15. Easily exploitable vulnerability allows low privileged attacker with network a
- 8.8 High severity
Oracle Cost Management: Improper Privilege Management
Vulnerability in the Oracle Cost Management product of Oracle E-Business Suite (component: Cost Planning). Supported versions that are affected are 12.2.3-12.2.15. Easily exploitable vulnerability allows low privileged attacker with network access via HTTP to
- 8.8 High severity
Oracle Spares Management: Improper Privilege Management
Vulnerability in the Oracle Spares Management product of Oracle E-Business Suite (component: Internal Operations). Supported versions that are affected are 12.2.3-12.2.15. Easily exploitable vulnerability allows low privileged attacker with network access via
- 8.8 High severity
Siebel CRM Cloud Applications: Improper Privilege Management
Vulnerability in the Siebel CRM Cloud Applications product of Oracle Siebel CRM (component: Siebel Cloud Manager). Supported versions that are affected are 17.0-26.5. Easily exploitable vulnerability allows low privileged attacker with network access via HTTP
- 9.8 Critical severity
Siebel CRM Cloud Applications: Improper Access Control
Vulnerability in the Siebel CRM Cloud Applications product of Oracle Siebel CRM (component: Siebel Cloud Manager). Supported versions that are affected are 17.0-26.5. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP
- 8.8 High severity
Oracle Process Manufacturing Product Development: Improper Privilege Management
Vulnerability in the Oracle Process Manufacturing Product Development product of Oracle E-Business Suite (component: Quality Management Specs). Supported versions that are affected are 12.2.3-12.2.15. Easily exploitable vulnerability allows low privileged atta
- 8.8 High severity
JD Edwards EnterpriseOne Tools: Improper Privilege Management
Vulnerability in the JD Edwards EnterpriseOne Tools product of Oracle JD Edwards (component: Business Logic Infrastructure Security). Supported versions that are affected are 9.2.0.0-9.2.26.2. Easily exploitable vulnerability allows low privileged attacker wit
- 9.8 Critical severity
Siebel Apps - Marketing: Improper Access Control
Vulnerability in the Siebel Apps - Marketing product of Oracle Siebel CRM (component: Marketing). Supported versions that are affected are 17.0-26.5. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Si
- 9.8 Critical severity
Oracle Agile PLM: Improper Authentication
Vulnerability in the Oracle Agile PLM product of Oracle Supply Chain (component: Security). The supported version that is affected is 9.3.6. Easily exploitable vulnerability allows unauthenticated attacker with network access via HTTP to compromise Oracle Agil
- 8.2 High severity
forem: Improper Authentication
Forem is open source software for building communities. Prior to commit a2ab6d4, a maliciously crafted email address could allow an attacker to bypass domain allowlist or denylist restrictions and gain access to invite-only forem deployments. The issue is patc
- 9.8 Critical severity
metacat: Improper Neutralization of Special Elements used in an SQL Command
Metacat is data repository software that helps researchers preserve, share, and discover data. Versions 2.0.0 and and above contain an unauthenticated SQL injection in the /harvesterRegistration endpoint. HarvesterRegistration.dbInsert() builds an INSERT again
- 9.8 Critical severity
BUK TS-G Gas Station Automation System: Improper Authentication
Nefteprodukttekhnika BUK TS-G Gas Station Automation System 2.9.1 through 2.10.2 on Linux contains an Improper Authentication vulnerability (CWE-287) in the system configuration module.
- 9.8 Critical severity
phpBB: Improper Authentication
Improper authentication checks in the OAuth implementation allow account hijacking even when OAuth is not configured or enabled leading to unauthorized access in default installations.
- 8.3 High severity
roxy-wi: Improper Authentication
Roxy-WI is a web interface for managing Haproxy, Nginx, Apache and Keepalived servers. In versions 8.2.6.4 and prior, there is an authentication bypass vulnerability via 'api' substring in URL + unauthenticated /api/gpt. At time of publication, there are no pu
- 8.1 High severity
Spring Security: Improper Authentication
SubjectDnX509PrincipalExtractor does not correctly handle certain malformed X.509 certificate CN values, which can lead to reading the wrong value for the username. In a carefully crafted certificate, this can lead to an attacker impersonating another user. Af
- 7.4 High severity
Spring LDAP: Improper Authentication
Spring LDAP's DirContextAuthenticationStrategy implementations do not reject a bind request where a non-empty username is paired with an empty or null password. Affected versions: Spring LDAP 2.4.0 through 2.4.4; 3.2.0 through 3.2.17; 3.3.0 through 3.3.7; 4.0.
- 7.3 High severity
Taier: Improper Authentication
A vulnerability was determined in DTStack Taier up to 1.4.0. The affected element is the function preHandle of the file taier-data-develop/src/main/java/com/dtstack/taier/develop/interceptor/LoginInterceptor.java of the component Source Connection Test Endpoin