Weakness (CWE)
CWE-307: Improper Restriction of Excessive Authentication Attempts
The product does not implement sufficient measures to prevent multiple failed authentication attempts within a short time frame.
How to prevent it (2 mitigations)
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Architecture and Design
Common protection mechanisms include:
- Disconnecting the user after a small number of failed attempts
- Implementing a timeout
- Locking out a targeted account
- Requiring a computational task on the user's part.
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Architecture and Design
Use a vetted library or framework that does not allow this weakness to occur or provides constructs that make this weakness easier to avoid [REF-1482].
Consider using libraries with authentication capabilities such as OpenSSL or the ESAPI Authenticator. [REF-45]
Source: MITRE CWE-307
215 results · Clear filters · Feed
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Medium 4.4
In Audio HAL, there is a possible information disclosure due to a missing permission check. This could lead to local in…
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Medium 6.7
In Audio HAL, there is a possible escalation of privilege due to improper input validation. This could lead to local es…
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Medium 6.5
AVideo API Rate Limit Bypass via Bot User-Agent Header
AVideo API fails to enforce rate limits when clients send a bot User-Agent header, allowing attackers to bypass all eight protected operations including login brute-force protection. Attackers can send requests with a bot User-Agent to disable rate limiting a…
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Medium 6.9
CWE-307: Improper Restriction of Excessive Authentication Attempts vulnerability exists that could allow an attacker to…
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Medium 6.5
WWBN AVideo Unauthenticated Rate Limit Bypass via preauthorize.json.php
WWBN AVideo contains an unauthenticated credential submission vulnerability in plugin/Live/api/preauthorize.json.php that accepts credentials over GET without rate limiting. Attackers can submit correct credentials repeatedly to trigger uncapped two-factor co…
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Medium 6.3
WatchGuard Dimension Web UI Authentication Brute-Force Due to Missing Rate Limiting
WatchGuard Dimension's web login endpoint does not enforce effective rate-limiting or account lockout by default allowing a remote attacker to perform automated password guessing against user accounts. If the account lockout setting is enabled, brute-force at…
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Medium 5.7
Disable Login Page - Moderately critical - Access bypass - SA-CONTRIB-2026-110
Improper Restriction of Excessive Authentication Attempts vulnerability in Drupal Disable Login Page allows Brute Force. This issue affects Disable Login Page versions: from 0.0.0 to 1.1.4.
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Medium 5.3
Rocket.Chat Missing DDP Rate Limit on the sendForgotPasswordEmail Meteor Method
Rocket.Chat exposes the sendForgotPasswordEmail Meteor method without a DDP rate limit, so an unauthenticated caller may invoke it as often as it likes. The method is reachable over DDP and over the HTTP route POST /api/v1/method.callAnon/sendForgotPasswordEm…
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Medium 5.3
HCL Hive is affected by a missing rate limit
HCL Hive is affected by a missing rate limit which could allow an attacker unauthorized access via brute-force or credential stuffing attacks, or cause a denial of service.
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Medium 5.3
Plainpad Missing Rate Limiting via POST /v1/sessions
Plainpad through 1.1.1, fixed in commit d3823fc, contains a missing rate limiting vulnerability that allows unauthenticated attackers to send unbounded login requests to the POST /v1/sessions endpoint due to dead code in App\Http\Kernel.php that is never inst…
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Medium 5.6
HCL AION is affected by multiple security vulnerabilities.
HCL AION is affected by a vulnerability where certain endpoints lack sufficient anti-automation controls. Automated or scripted requests may be submitted without adequate rate limiting or challenge mechanisms, potentially resulting in unintended behavior or s…
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Medium 5.3
Mira Hormone Monitor, Mira Android App Improper restriction of excessive authentication attempts
The Mira cloud authentication endpoints do not enforce per-account rate limiting, per-IP throttling, or account lockout after repeated failed login attempts. An attacker can use brute-force methods to obtain gain access to user accounts.
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Medium 5.8
OpenReception's client PIN challenge throttle is keyed by emailHash only, allowing cross-tenant lockout
OpenReception's appointment booking software provides an end-to-end encrypted appointment booking platform. Prior to version 1.0.4, the PIN-type challenge throttle uses `emailHash` as the only key. The throttle rows live in the central `challenge_throttle` ta…
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Medium 6.5CVE-2026-71205 Public exploit
changedetection.io - No Rate Limiting on /login Enables Unlimited Password Brute-Force
changedetection.io's /login route checks the submitted password against a single PBKDF2-HMAC-SHA256 hash with no per-IP or per-session rate limiting, failed-attempt counter, or lockout (no rate-limiting library is present in requirements.txt).
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Medium 6.9CVE-2026-8793 Public exploit
PaperCut NG/MF: Insufficient brute-force protection
PaperCut NG/MF does not properly restrict excessive authentication attempts within its login component. An unauthenticated remote attacker can exploit this vulnerability to perform unrestricted brute-force or credential-stuffing attacks without triggering acc…
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Medium 4.3
OTP Bypass in Universal Sotware's FlexCity
Improper restriction of excessive authentication attempts vulnerability in Universal Software Inc. FlexCity allows Excessive Allocation. This issue affects FlexCity: from 5.536.0 before 5.542.0.
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Medium 5.3
OpenClaw 2026.2.25 < 2026.5.26 WebSocket Rate Limit Bypass
OpenClaw 2026.2.25 before 2026.5.26 allow a lower-trust caller or configured input path to bypass non-browser rate limits on WebSocket authentication attempts. When the affected feature is enabled and reachable by lower-trust input, this can consume gateway r…
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Medium 6.5CVE-2026-44596 Public exploit
Yamcs: No Rate Limiting on Authentication Endpoint
Yamcs is a mission control framework. Prior to 5.12.7, the authentication endpoint POST /auth/token in yamcs-core, handled by yamcs-core/src/main/java/org/yamcs/http/auth/AuthHandler.java, lacked any rate limiting, account lockout, or failed-attempt throttlin…
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Medium 5.9
Brute force attack protection - Critical - Unsupported - SA-CONTRIB-2026-047
vulnerability in Drupal Brute force attack protection allows . This issue affects Brute force attack protection versions: *.*.
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Medium 5.4
Login Disable - Moderately critical - Access bypass - SA-CONTRIB-2026-070
Improper Restriction of Excessive Authentication Attempts vulnerability in Drupal Login Disable allows Brute Force. This issue affects Login Disable versions: from 0.0.0 to 2.1.4.
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Medium 6.3
Account Denial of Service in MCO
MCO is vulnerable to Account Denial of Service due to improper implementation of password reset functionality. Each password reset request invalidates previously set password as well as previously issued temporary passwords, furthermore, password resets are n…
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Medium 6.9
Improper Restriction of Excessive Authentication Attempts in KTM System e-BOK
KTM System e-BOK does not implement any limit or timeout on consecutive login attempts, allowing an attacker to perform unlimited authentication requests. This lack of rate‑limiting enables efficient brute‑force attacks against user accounts. When combined wi…
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Medium 5.3
PayloadCMS 3.84.1 - Authenticated account lockout bypass through default unlock access
An Improper Authorization vulnerability exists in PayloadCMS version 3.84.1 due to insufficient access control on the account unlock operation.
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Medium 6.5
FileBrowser: Missing Rate Limiting on Authentication Endpoint Enables Brute Force Attacks
### Summary The `/api/auth/login` endpoint does not implement rate limiting, account lockout, or progressive backoff for repeated authentication failures. As a result, an attacker can perform unlimited login attempts against the endpoint. When combined with t…
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Medium 6.3
NocoDB: User Enumeration via Sign-In Timing
NocoDB is software for building databases as spreadsheets. Prior to 2026.04.1, sign-in response timing differed between known and unknown email addresses because the unknown-user branch returned without performing a password hash comparison. This vulnerabilit…
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Medium 5.3
Capgo - Password Spraying via Public-Key Accessible Credential Validation Endpoint
Capgo before 12.128.2 contains a credential validation vulnerability in the POST /functions/v1/private/validate_password_compliance endpoint that is callable using only the public Supabase key without authentication. The endpoint is CORS-permissive with wildc…
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Medium 5.1
AIL Framework - Missing Rate Limiting Enables Brute-Force Attacks Against Two-Factor Authentication Codes
AIL did not restrict repeated failed attempts to verify a two-factor authentication (OTP) code. An attacker who had reached the 2FA verification step, such as after successfully completing the password-authentication stage, could submit an unlimited number of…
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Medium 6.3
FOSSBilling's password reset confirmation endpoint lacks rate limiting
FOSSBilling is a free, open-source billing and client management system. Prior to version 0.8.0, the password reset confirmation endpoint `/client/reset-password-confirm/:hash` is handled by a non-API controller and is not covered by FOSSBilling's rate limite…
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Medium 6.4
Mercusys AC12G (EU) V1 with firmware AC12G(EU)_V1_200909 enables WPS 2.0 by default with a weak lockout policy (60-seco…
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Medium 4.6
Indian Scout Bobber 2025 WCM brute-force
Uncontrolled resource consumption in the Wireless Control Module (WCM) of the Indian Motorcycle Scout Bobber + Tech 2025 model year allows an adjacent-network attacker with write access to the in-vehicle network to permanently immobilize the motorcycle. The W…
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Medium 6.3
OTP Bypass in TEİAŞ's Mobile Application
Improper restriction of excessive authentication attempts vulnerability in Turkiye Electricity Transmission Corporation (TEİAŞ) Mobile Application allows Brute Force. This issue affects Mobile Application: from 1.6.2 before 1.13.
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Medium 6.9
Strapi has a rate limit bypass on users-permissions plugin via attacker-controlled email keying
Strapi is an open source headless content management system. In Strapi versions prior to 5.45.0, the rate-limit middleware in the users-permissions plugin derived its rate-limit key in part from `ctx.request.body.email`, including on routes whose body schema …
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Medium 5.4
HCL AION is affected by a vulnerability where adequate protections against brute-force attempts are not enforced.
HCL AION is affected by a vulnerability where adequate protections against brute-force attempts are not enforced. This may allow repeated authentication attempts, potentially leading to unauthorized access or account compromise under certain conditions.
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Medium 5.3
OPNsense: Authentication lockout bypass
OPNsense is a FreeBSD based firewall and routing platform. Prior to 26.1.7, a logic flaw in the OPNsense lockout_handler allows an unauthenticated attacker to continuously reset the authentication failure counter for their IP address. By interjecting a crafte…
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Medium 6.5
** UNSUPPORTED WHEN ASSIGNED ** An improper restriction of excessive authentication attempts vulnerability in the web m…
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Medium 6.5
pgAdmin 4: Account-lockout bypass via Flask-Security default /login view
Improper restriction of excessive authentication attempts (CWE-307) in pgAdmin 4. pgAdmin enforces MAX_LOGIN_ATTEMPTS only inside its custom /authenticate/login view. Flask-Security's default /login view, which is registered automatically by security.init_app…
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Medium 5.3
Improper Restriction of Excessive Authentication Attempts vulnerability in Hitachi Virtual Storage Platform
Improper restriction of excessive authentication attempts vulnerability in Hitachi Virtual Storage Platform G130, G150, G350, G370, G700, G900, F350, F370, F700, F900, Hitachi Virtual Storage Platform E390, E590, E790, E990, E1090, E390H, E590H, E790H, E1090H…
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Medium 6.5
Wazuh: API brute-force protection bypass via race condition in login attempt tracking
Wazuh is a free and open source platform used for threat prevention, detection, and response. From version 4.0.0 to before version 4.14.4, Wazuh's server API brute-force protection for POST /security/user/authenticate can be bypassed by sending concurrent aut…
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Medium 6.2
The RTSP service of MERCURY IP camera MIPC252W 1.0.5 Build 230306 has an issue handling failed Digest authentication at…
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Medium 5.9
@node-oauth/oauth2-server: PKCE code_verifier ABNF not enforced in token exchange allows brute-force redemption of intercepted authorization codes
@node-oauth/oauth2-server is a module for implementing an OAuth2 server in Node.js. The token exchange path accepts RFC7636-invalid code_verifier values (including one-character strings) for S256 PKCE flows. Because short/weak verifiers are accepted and faile…