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
24 results · Clear filters · Feed
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Medium 4.8CVE-2026-85301 Public exploit
Apache Camel: Camel-Keycloak Issuer Validation Bypass When the Introspection Response Omits the iss Claim
Improper Authentication vulnerability in Apache Camel Keycloak component. This issue affects Apache Camel: from 4.15.0 before 4.18.5, from 4.19.0 before 4.22.1. The security processor validated the issuer of an introspected token only when the introspection r…
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Medium 5.9CVE-2026-84181 Public exploit
Apache Camel: Camel-Shiro Authentication Bypass via Skipped Credential Verification on Subject Reuse
Improper Authentication vulnerability in Apache Camel Shiro component. This issue affects Apache Camel: from 4.0.0 before 4.18.5, from 4.19.0 before 4.22.1. The Shiro security processor skipped credential verification when the subject already bound to the cur…
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Medium 5.9CVE-2026-109506 Public exploit
Improper Authentication in Multiple TP-Link WiFi Repeaters
Multiple TP-Link Wi-Fi range extenders use a custom, reversible XOR-and-dictionary transformation in the HTTP web-management login flow. An unauthenticated attacker on the same local network who can capture the network traffic associated with legitimate admin…
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Medium 5.3CVE-2026-100903 Public exploit
ООО НПО Ритм GEOritm REST API obj-groups missing authentication
A vulnerability was identified in ООО НПО Ритм GEOritm up to 2.45.1. This affects an unknown part of the file /restapi/objects/obj-groups of the component REST API. Such manipulation of the argument objectId leads to missing authentication. The attack can be …
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Medium 5.3CVE-2026-19607 Public exploit
Keycloak-services: keycloak-services: broker-originated username collision causes account lockout
A flaw was found in the first-broker-login flow of the keycloak-services component. This component handles the initial authentication and account linking when a user logs in via an external identity provider. The issue allows an attacker to register a matchin…
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Medium 4.7CVE-2026-19971 Public exploit
LB-Link WR1210M Backup Endpoint backup.cgi main missing authentication
A flaw has been found in LB-Link WR1210M 1.0.3. This impacts the function main of the file /www/cgi-bin/backup.cgi of the component Backup Endpoint. This manipulation causes missing authentication. The attack is only possible within the local network. The ven…
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Medium 6.5CVE-2026-8508 Public exploit
An improper authentication vulnerability in the "social_login.cgi" CGI program in Zyxel WAX650S firmware versions throu…
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Medium 4.1CVE-2026-56850 Public exploit
A flaw in Node.js HTTPS Agent connection reuse can cause PFX object-array key collisions, allowing mutual TLS (mTLS) cl…
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Medium 6.1CVE-2026-44166 Public exploit
Pocketbase: Account pre-hijacking via OAuth2 unverfied->verified autolinking upgrade
Pocketbase is an open source web backend written in go. Prior to 0.22.42 and 0.37.4, in some situations, if an attacker knows the email address of the victim they can create and link an unverified PocketBase user in advance by authenticating with one of the O…
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Medium 5.0CVE-2026-34990 Public exploit
OpenPrinting CUPS: Local print admin token disclosure using temporary printers
OpenPrinting CUPS is an open source printing system for Linux and other Unix-like operating systems. In versions 2.4.16 and prior, a local unprivileged user can coerce cupsd into authenticating to an attacker-controlled localhost IPP service with a reusable A…
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Medium 6.3CVE-2026-0842 Public exploit
Flycatcher Toys smART Sketcher Bluetooth Low Energy missing authentication
A flaw has been found in Flycatcher Toys smART Sketcher up to 2.0. This affects an unknown part of the component Bluetooth Low Energy Interface. This manipulation causes missing authentication. The attack can only be done within the local network. The exploit…
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Medium 6.5CVE-2025-65925 Public exploit
An issue was discovered in Zeroheight (SaaS) prior to 2025-06-13. A legacy user creation API pathway allowed accounts t…
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Medium 6.7CVE-2025-20730 Public exploit
In preloader, there is a possible escalation of privilege due to an insecure default value. This could lead to local es…
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Medium 6.5
Microsoft SharePoint Server Spoofing Vulnerability
Improper authentication in Microsoft Office SharePoint allows an unauthorized attacker to perform spoofing over a network.
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Medium 6.5
Microsoft SharePoint Server Spoofing Vulnerability
Improper authentication in Microsoft Office SharePoint allows an unauthorized attacker to perform spoofing over a network.
KEV Jul 22, 2025 -
Medium 5.3CVE-2024-10511 Public exploit
CWE-287: Improper Authentication vulnerability exists that could cause Denial of access to the web interface when someo…
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Medium 6.5CVE-2024-32868 Public exploit
ZITADEL's Improper Lockout Mechanism Leads to MFA Bypass
ZITADEL provides users the possibility to use Time-based One-Time-Password (TOTP) and One-Time-Password (OTP) through SMS and Email. While ZITADEL already gives administrators the option to define a `Lockout Policy` with a maximum amount of failed password ch…
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Medium 6.5CVE-2023-47504 Public exploit
WordPress Elementor plugin <= 3.16.4 - Auth. Arbitrary Attachment Read vulnerability
Improper Authentication vulnerability in Elementor Elementor Website Builder allows Accessing Functionality Not Properly Constrained by ACLs.This issue affects Elementor Website Builder: from n/a through 3.16.4.
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Medium 6.5CVE-2023-52160 Public exploit
The implementation of PEAP in wpa_supplicant through 2.10 allows authentication bypass. For a successful attack, wpa_su…
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Medium 6.5CVE-2023-4568 Public exploit
PaperCut NG Unauthenticated XMLRPC
PaperCut NG allows for unauthenticated XMLRPC commands to be run by default. Versions 22.0.12 and below are confirmed to be affected, but later versions may also be affected due to lack of a vendor supplied patch.
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Medium 6.5
Keycloak discloses information without authentication
A flaw was found in keycloak in versions prior to 13.0.0. The client registration endpoint allows fetching information about PUBLIC clients (like client secret) without authentication which could be an issue if the same PUBLIC client changed to CONFIDENTIAL l…
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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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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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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.