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
186 results · Clear filters · Feed
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High 8.9
Multiple Vulnerabilities in IBM API Connect
IBM API Connect 10.0.8.0 through 10.0.8.12 and 12.1.0.0 through 12.1.1.2 could allow a remote attacker to perform unauthenticated brute-force attacks to obtain valid credentials due to improper restriction of excessive authentication attempts.
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High 7.5
Chartbrew: Unauthenticated Brute Force of Password-Protected Dashboards Due to Missing Rate Limit and Plaintext Password Storage
Chartbrew is an open-source web application that can connect directly to databases and APIs and use the data to create charts. Prior to 5.2.3, public dashboard passwords were stored in plaintext, accepted through a URL query parameter, and checked without eff…
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High 8.3
Hisense VIDAA Smart TV MQTT Broker Authentication Bypass
Hisense VIDAA Smart TV firmware V0000.01.00a.P0220 contains an authentication bypass vulnerability in its remote-control MQTT broker on TCP port 36669, which accepts publicly documented default credentials and an ineffective 4-digit pairing PIN with no rate l…
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High 7.5
Brute-forceable image-share link password in INFINITT ULite
INFINITT ULite 5.0.2.1_BN48_20260528 and earlier protects image-share links with a low-entropy password and does not restrict repeated password attempts, allowing an unauthenticated remote attacker to brute-force the password within the link validity window a…
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High 8.1
Unauthenticated Improper Restriction of Excessive Authentication Attempts in the API of HPE Networking Fabric Composer
An improper restriction of excessive authentication attempts vulnerability in the API of HPE Networking Fabric Composer could allow an unauthenticated remote attacker to conduct brute-force attacks against user accounts if certain preconditions outside of the…
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High 8.1
pgAdmin 4: The failed login limit can be bypassed, and Flask-Security's own views skip pgAdmin's login and password checks
In server mode pgAdmin 4 locks an internal account after MAX_LOGIN_ATTEMPTS failed logins (3 by default). The limit could be bypassed, giving an unauthenticated attacker an unlimited number of password guesses against any internal account, including the admin…
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High 7.5
OpenReception: one tenant's throttle row disables the PIN brute-force throttle for the same identifier in other tenants
OpenReception's appointment booking software provides an end-to-end encrypted appointment booking platform. In versions 2.1.0 and prior, a returning client's six-digit booking PIN can be brute-forced online in the victim tenant. A successful guess yields the …
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High 8.2
A vulnerability in the proprietary protocol could allow an attacker to brute force the administrator password without r…
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High 7.4
Course-tencent-cloud through 2.0.1 Verification Code Brute Force Account Takeover
Course-tencent-cloud through 2.0.1 contains an improper restriction of authentication attempts vulnerability that allows unauthenticated attackers to brute force 6-digit SMS/email verification codes, which are never invalidated or attempt-limited. Attackers w…
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High 7.4
MacCMS v10 through 2026.1000.4056 Account Takeover via Password Recovery Brute-Force
MacCMS v10 through 2026.1000.4056 does not limit attempts on the six-digit password recovery code, allowing unauthenticated attackers to take over member accounts. Attackers knowing a victim's email or phone can request a code and brute-force findpass_reset t…
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High 7.5
Lychee: Missing rate limiting on album password unlock endpoint allows brute-force attacks
Lychee is a free, open-source photo-management tool. Prior to 7.6.1, POST /api/v2/Album::unlock has no throttle, attempt counter, backoff, CAPTCHA, or lockout. UnlockAlbumRequest::authorize() permits any caller to submit attempts, and app/Actions/Album/Unlock…
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High 8.1CVE-2026-103977 Public exploit
FileRise: Session-scoped TOTP rate limiting permits repeated verification attempts
FileRise is a self-hosted web-based file manager with multi-file upload, editing, and batch operations. Prior to 3.23.0, FileRise stores failed TOTP verification attempts in $_SESSION. An attacker who already possesses a target account's valid primary credent…
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High 8.1
Databasus 3.7.0 through 3.61.0 Account Takeover via Password Reset Brute-Force
Databasus 3.7.0 through 3.61.0 contains an authentication bypass vulnerability that allows unauthenticated attackers to brute-force password reset codes via POST /api/v1/users/reset-password. Attackers can request a six-digit code for a known email, then gues…
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High 7.4
Netherman Portal del Hermano Account Takeover via Password Reset Oracle
Netherman Portal del Hermano (portaldelhermano.es) before 2026-10-06 contains a broken authentication vulnerability in its password-recovery flow at the POST /password/create-access and POST /password/email endpoints, allowing unauthenticated attackers to tak…
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High 7.4
Dell Secure Connect Gateway (SCG) Policy Manager, versions prior to 5.34.00.16, contains an Improper Restriction of Exc…
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High 7.4
PLANKA 2.2.0 through 2.2.1 TOTP Brute Force via verify-totp Endpoint
PLANKA 2.2.0 through 2.2.1 fails to limit incorrect TOTP codes submitted to POST /api/access-tokens/verify-totp, allowing attackers to brute force two-factor authentication codes. Attackers who know a user's password can reuse the ten-minute pending token to …
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High 7.5
Monta monta.app Improper Restriction of Excessive Authentication Attempts
The WebSocket Application Programming Interface lacks restrictions on the number of authentication requests. This absence of rate limiting may allow an attacker to conduct denial-of-service attacks or brute-force attacks to gain unauthorized access.
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High 7.4CVE-2026-102334 Public exploit
Nginx Proxy Manager through 2.16.0 Missing Brute-Force Protection
Nginx Proxy Manager through 2.16.0 lacks rate-limiting on authentication endpoints, allowing unauthenticated attackers to make unlimited password guesses against any account. Attackers can brute-force login credentials via POST /api/tokens and subsequently gu…
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High 7.7
GLPI: Missing Rate Limiting on Login and TOTP Verification — Account Takeover via Brute Force
GLPI is a free asset and IT management software package. From 11.0.0 until 11.0.8, the time-based one-time password verification endpoint does not limit failed submissions per user. An attacker who has obtained a user's primary authentication credentials can …
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High 7.5
Vikunja before 2.6.0 Authentication Bypass via CalDAV BasicAuth
Vikunja before 2.6.0 contains an authentication bypass vulnerability in CalDAV BasicAuth endpoints that lack rate limiting protection. Remote unauthenticated attackers can issue unbounded credential-guessing requests against /dav, /.well-known, and /feeds rou…
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High 7.5
Vikunja before 2.6.0 Authentication Bypass via Unthrottled API
Vikunja versions before 2.6.0 fail to apply rate limiting to /api/v2 public authentication endpoints including login, register, password-reset, and OAuth token routes. Remote unauthenticated attackers can perform unbounded credential guessing, account enumera…
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High 7.5
Kingdom Communication Associated｜Smart Video Intercom System - Missing Burte-force Protection
Smart Video Intercom System developed by Kingdom Communication Associated has a Missing Brute-force Protection vulnerability. Unauthenticated remote attackers can gain access to valid accounts through a large number of login attempts.
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High 7.5
Dell SCG 5.0 Appliance versions prior to 5.36.00.16 and Dell SCG 5.0 Application versions prior to 5.36.00.00, contains…
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High 7.4
WWBN AVideo Unrestricted Authentication Attempts via get_api_preauthorize
WWBN AVideo through commit e01e41ecc (no patched version available) exposes get_api_preauthorize in plugin/API/API.php as a second, undocumented login path. Unlike get_api_signIn, which enforces a rate limit of 10 attempts per 5 minutes via checkRateLimit(), …
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High 8.6
Missing Rate Limiting in Email OTP Verification Allows Brute-Force Authentication Bypass
A vulnerability in MISP's email-based one-time password (OTP) authentication flow allowed an attacker to perform an unrestricted number of OTP verification attempts. The email_otp() endpoint did not apply brute-force protection when validating submitted OTP v…
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High 8.5
Rockwell Automation FactoryTalk® Activation Manager - Privilege Escalation
A privilege escalation security issue exists within FactoryTalk® Activation Manager. The security issue stems from custom actions in the installer that spawn visible console windows running with SYSTEM privileges during installation or repair operations. An a…
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High 7.5
WWBN AVideo Brute-force Rate Limiting Bypass via Missing User-Agent
WWBN AVideo (current e01e41ecc and earlier) contains a brute-force rate limiting bypass in enforceRateLimit(), which protects login.json.php and 13 other endpoints. The function stores its attempt counter via a cache layer (ObjectYPT::setCacheGlobal) that sil…
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High 7.5
Ebyte NA111-M Improper Restriction of Excessive Authentication Attempts
The affected Ebyte device does not restrict repeated authentication attempts through rate limiting or account lockout mechanisms. This could allow an attacker to perform automated authentication attacks against deployments that rely on password based authenti…
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High 8.8
RansomLook Login Endpoint Allows Timing-Based Username Enumeration and Unthrottled Authentication Attempts
RansomLook contains multiple weaknesses in its authentication endpoint that allow an unauthenticated remote attacker to enumerate valid usernames, perform unrestricted password-guessing attacks, and potentially exhaust application worker resources. For local …
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High 7.5
Monkeytype: Rate-limit and anti-brute-force controls bypassable via spoofed HTTP headers (forgotPasswordEmail/verificationEmail mail bombing and badAuth bypass)
Monkeytype is a minimalistic and customizable typing test. In 26.26.0 and earlier, the backend rate-limit key generator in backend/src/middlewares/rate-limit.ts uses client-controlled cf-connecting-ip and x-forwarded-for headers before the trust-proxy-derived…
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High 7.4
phpMyFAQ before 4.1.7 2FA Brute-Force via Session-Scoped Throttle
phpMyFAQ before 4.1.7 contains a brute-force vulnerability in the two-factor authentication step where the failure counter is session-scoped and reset on each successful password re-authentication. Attackers with a valid password can bypass the five-attempt l…
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High 7.5
SiYuan before 3.7.4 Brute-Force Authentication via Publish Service
SiYuan versions before 3.7.4 contain an unthrottled brute-force vulnerability in the Publish Service Basic Auth implementation (PublishServiceTransport.RoundTrip() in kernel/server/proxy/publish.go). The Publish Service runs on a separate, unauthenticated-by-…
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High 7.5
SiYuan before 3.7.4 Brute-Force via authFilePublishAccess
SiYuan before 3.7.4 contains an improper restriction of excessive authentication attempts vulnerability in the authFilePublishAccess endpoint that allows unauthenticated attackers to brute-force per-notebook publish passwords. Attackers can submit unbounded p…
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High 7.3
Apache Ranger: UnixAuth lacks brute-force protection
UnixAuth lacks brute-force protection in Apache Ranger versions <= 2.8.0. Note: UnixAuth is NOT a recommended option for production deployments. Users are recommended to upgrade to version 2.9.0, which fixes this issue.
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High 7.4
OpenReception doesn't rate limit passphrase login attempts
OpenReception's appointment booking software provides an end-to-end encrypted appointment booking platform. Versions prior to 1.0.2 don't throttle failed passphrase login attempts. An attacker can submit unlimited wrong passphrase guesses against any known em…
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High 7.5
miniOrange 2FA < 6.2.8 - 2FA Bypass via Unlimited Second-Factor Attempts
The miniOrange 2FA WordPress plugin before 6.2.8 does not correctly limit the number of second-factor verification attempts, tracking them against a client-supplied identifier that is reissued on every login, allowing an attacker who already knows a user's pa…
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High 7.3
@fastify/rate-limit vulnerable to rate-limit bypass via IPv6 address rotation
@fastify/rate-limit before 11.2.0 keys rate-limit buckets by the verbatim client IP string returned from request.ip. Because a single IPv6 client can control a large address range (a /64 holds 2^64 distinct addresses) and the same address has multiple valid t…
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High 8.8
Improper restriction of excessive authentication attempts in MikroTik RouterOS and Cloud Hosted Router
MikroTik RouterOS contains a weakness in its API authentication handling that lacks effective safeguards against excessive login attempts. The system does not enforce meaningful rate-limiting, account lockout, or source-based restrictions, allowing repeated a…
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High 8.7
Improper Authentication Vulnerability in CP PLUS EZ-P21 IP Camera
This vulnerability exists in CP PLUS EZ-P21 IP Camera due to improper authentication of HTTP endpoints. A remote attacker could exploit this vulnerability by conducting brute-force attacks against HTTP endpoint on the targeted device. Successful exploitation …
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High 7.3
dataCycle No Brute-Force Protection On Web And API Login Endpoints
dataCycle is a data management system for centrally storing, managing, searching, finding, and distributing data. In dataCycle-CORE, the module handling core processing and framework rules, before and including version 25.07.3, the application accepts unlimit…