The Login with OTP plugin for WordPress is vulnerable to authentication bypass in all versions up to, and including, 1.6. This is due to an incomplete fix for CVE-2024-11178: the rate-limit/lockout check added to `otpl_login_action()` was placed only inside the OTP-generation branch and is never evaluated on the OTP-validation branch, and the generated 6-digit OTP additionally has no expiration. This makes it possible for unauthenticated attackers to brute-force the 900,000-value OTP space for any user account (including administrators) and obtain a valid `wp_set_auth_cookie()` session, leading to full site compromise.

DoraCMS v2.1.8 was discovered to re-use the same code for verification of valid usernames and passwords. This vulnerability allows attackers to gain access to the application via a bruteforce attack.

kodbox 1.46.01 has a security flaw that enables user enumeration. This problem is present on the login page, where an attacker can identify valid users based on varying response messages, potentially paving the way for a brute force attack.

An issue was discovered in weijiang1994 university-bbs (aka Blogin) in commit 9e06bab430bfc729f27b4284ba7570db3b11ce84 (2025-01-13). A weak verification code generation mechanism combined with missing rate limiting allows attackers to perform brute-force attacks on verification codes without authentication. Successful exploitation may result in account takeover via password reset or other authentication bypass methods.

Zitadel is open-source identity infrastructure software. Prior to 4.6.0, 3.4.3, and 2.71.18, an attacker can perform an online brute-force attack on OTP, TOTP, and passwords. While Zitadel allows preventing online brute force attacks in scenarios like TOTP, Email OTP, or passwords using a lockout mechanism. The mechanism is not enabled by default and can cause a denial of service for the corresponding user if enabled. Additionally, the mitigation strategies were not fully implemented in the more recent resource-based APIs. This vulnerability is fixed in 4.6.0, 3.4.3, and 2.71.18.

The cookie session ID is of insufficient length and can be exploited by brute force, which may allow a remote attacker to obtain a valid session, bypass authentication, and manipulate the transmitter.

OpenCart CMS v4.0.2.2 was discovered to lack a protective mechanism on its login page against excessive login attempts, allowing unauthenticated attackers to gain access to the application via a brute force attack to the password parameter.

There is no limit on the number of login attempts in the web server for the SNAP PAC S1 Firmware version R10.3b. This could allow for a brute-force attack on the built-in web server login.

Improper restriction of excessive authentication attempts vulnerability in Başbelen Group Food Cafe Businesses Industry and Trade Ltd. Co. Pause+ Mobile App allows Authentication Bypass. This issue affects Pause+ Mobile App: from v1.0.6 before v1.5.

Chunghwa Telecom NOKIA G-040W-Q has a vulnerability of insufficient measures to prevent multiple failed authentication attempts. An unauthenticated remote attacker can execute a crafted Javascript to expose captcha in page, making it very easy for bots to bypass the captcha check and more susceptible to brute force attacks.

The application does not implement sufficient measures to prevent multiple failed authentication attempts within a short time frame, making it possible for an attacker to guess user credentials.

UVDesk Community Skeleton v1.1.1 allows unauthenticated attackers to perform brute force attacks on the login page to gain access to the application.

Improper Restriction of Excessive Authentication Attempts vulnerability in Be Devious Web Development Password Reset with Code for WordPress REST API allows Authentication Abuse.This issue affects Password Reset with Code for WordPress REST API: from n/a through 0.0.15.

SpliceCom Maximiser Soft PBX v1.5 and before does not restrict excessive authentication attempts, allowing attackers to bypass authentication via a brute force attack.

The OKLOK (3.1.1) mobile companion app for Fingerprint Bluetooth Padlock FB50 (2.3) has weak password requirements combined with improper restriction of excessive authentication attempts, which could allow a remote attacker to discover user credentials and obtain access via a brute force attack.

An issue was discovered in Moxa NPort 5110 versions prior to 2.6, NPort 5130/5150 Series versions prior to 3.6, NPort 5200 Series versions prior to 2.8, NPort 5400 Series versions prior to 3.11, NPort 5600 Series versions prior to 3.7, NPort 5100A Series & NPort P5150A versions prior to 1.3, NPort 5200A Series versions prior to 1.3, NPort 5150AI-M12 Series versions prior to 1.2, NPort 5250AI-M12 Series versions prior to 1.2, NPort 5450AI-M12 Series versions prior to 1.2, NPort 5600-8-DT Series versions prior to 2.4, NPort 5600-8-DTL Series versions prior to 2.4, NPort 6x50 Series versions prior to 1.13.11, NPort IA5450A versions prior to v1.4. Administration passwords can be retried without authenticating.

Vaultwarden is a Bitwarden-compatible server written in Rust. Prior to 1.35.4, there is a security vulnerability in Vaultwarden that allows bypassing the login brute-force protection if email 2fa is enabled. If email 2fa is enabled, the unprotected 2fa-function send_email_login (email.rs, api endpoint /api/two-factor/send-email-login) also acts as an oracle determining whether a username-password combination is correct. An attacker can abuse that endpoint to brute-force passwords without rate-limiting. This works even for users who don't have email 2fa configured. This vulnerability is fixed in 1.35.4.

CACAGOO Cloud Storage Intelligent Camera TV-288ZD-2MP with firmware 3.4.2.0919 has weak authentication of TELNET access, leading to root privileges without any password required.

D-Link DSL-224 firmware version 3.0.10 CWE-307: Improper Restriction of Excessive Authentication Attempts

Improper Restriction of Excessive Authentication Attempts in GitHub repository froxlor/froxlor prior to 2.0.20.

IBM Security Guardium 11.1 uses an inadequate account lockout setting that could allow a remote attacker to brute force account credentials. IBM X-Force ID: 174857.

The htdocs/index.php?mainmenu=home login page in Dolibarr 10.0.6 allows an unlimited rate of failed authentication attempts.

IBM Tivoli Key Lifecycle Manager 3.0.1 and 4.0 uses an inadequate account lockout setting that could allow a remote attacker to brute force account credentials. IBM X-Force ID: 184156.

Improper Restriction of Excessive Authentication Attempts in GitHub repository linagora/twake prior to 2023.Q1.1223.

Improper restriction of excessive authentication attempts in the SSHGuard component of Netgate pfSense Plus software v22.05.1 and pfSense CE software v2.6.0 allows attackers to bypass brute force protection mechanisms via crafted web requests.

iDS6 DSSPro Digital Signage System 6.2 contains a CAPTCHA security bypass vulnerability that allows attackers to bypass authentication by requesting the autoLoginVerifyCode object. Attackers can retrieve valid CAPTCHA codes via the login endpoint and use them to perform brute-force attacks against user accounts.

Improper Restriction of Excessive Authentication Attempts in GitHub repository azuracast/azuracast prior to 0.18.3.

The FTP server’s login mechanism does not restrict authentication attempts, allowing an attacker to brute-force user passwords and potentially compromising the FTP server.

Kiwi TCMS, an open source test management system, does not impose rate limits in versions prior to 12.0. This makes it easier to attempt brute-force attacks against the login page. Users should upgrade to v12.0 or later to receive a patch. As a workaround, users may install and configure a rate-limiting proxy in front of Kiwi TCMS.

A client side rate limit issue discovered in Connectize AC21000 G6 641.139.1.1256 allows attackers to gain escalated privileges via brute force style attacks.

Snap One Wattbox WB-300-IP-3 versions WB10.9a17 and prior could bypass the brute force protection, allowing multiple attempts to force a login.

A lack of rate limiting on the password reset endpoint of Chamberlain myQ v5.222.0.32277 (on iOS) allows attackers to compromise user accounts via a bruteforce attack.

RAGFlow through 0.18.1 allows account takeover because it is possible to conduct successful brute-force attacks against email verification codes to perform arbitrary account registration, login, and password reset. Codes are six digits and there is no rate limiting.

An issue was discovered in MB CONNECT LINE mymbCONNECT24 and mbCONNECT24 through 2.6.2. The login pages bruteforce detection is disabled by default.

The built-in WEB server for MOXA NPort IAW5000A-I/O firmware version 2.1 or lower allows SSH/Telnet sessions, which may be vulnerable to brute force attacks to bypass authentication.

The Theme My Login 2FA WordPress plugin before 1.2 does not rate limit 2FA validation attempts, which may allow an attacker to brute-force all possibilities, which shouldn't be too long, as the 2FA codes are 6 digits.

Microsoft Exchange Server Elevation of Privilege Vulnerability

Sielco PolyEco1000 uses a weak set of default administrative credentials that can be easily guessed in remote password attacks and gain full control of the system.

Umanni RH 1.0 does not limit the number of authentication attempts. An unauthenticated user may exploit this vulnerability to launch a brute-force authentication attack against the Login page.

An issue in the user login box of LJCMS v1.11 allows attackers to hijack user accounts via brute force attacks.

The Phonemes mode in Pwgen 2.06 generates predictable passwords, which makes it easier for context-dependent attackers to guess the password via a brute-force attack.

LimitLoginAttempts.php in the limit-login-attempts-reloaded plugin before 2.17.4 for WordPress allows a bypass of (per IP address) rate limits because the X-Forwarded-For header can be forged. When the plugin is configured to accept an arbitrary header for the client source IP address, a malicious user is not limited to perform a brute force attack, because the client IP header accepts any arbitrary string. When randomizing the header input, the login count does not ever reach the maximum allowed retries.

tiki-login.php in Tiki before 21.2 sets the admin password to a blank value after 50 invalid login attempts.

Venki Supravizio BPM 10.1.2 does not limit the number of authentication attempts. An unauthenticated user may exploit this vulnerability to launch a brute-force authentication attack against the Login page.

A vulnerability has been identified in SIMATIC HMI Basic Panels 2nd Generation (incl. SIPLUS variants) (All versions < V16), SIMATIC HMI Comfort Panels (incl. SIPLUS variants) (All versions <= V16), SIMATIC HMI Mobile Panels (All versions <= V16), SIMATIC HMI Unified Comfort Panels (All versions <= V16). Affected devices insufficiently block excessive authentication attempts. This could allow a remote attacker to discover user passwords and obtain access to the Sm@rt Server via a brute-force attack.

OpenClinic GA versions 5.09.02 and 5.89.05b contain an authentication mechanism within the system that does not provide sufficient complexity to protect against brute force attacks, which may allow unauthorized users to access the system after no more than a fixed maximum number of attempts.

A CWE-307: Improper Restriction of Excessive Authentication Attempts vulnerability exists in PLC Simulator on EcoStruxureª Control Expert (now Unity Pro) (all versions) that could cause unauthorized command execution when a brute force attack is done over Modbus.

OpenClinic GA versions 5.09.02 and 5.89.05b may allow an attacker to bypass the system’s account lockout protection, which may allow brute force password attacks.

An issue was discovered in Foxit Reader and PhantomPDF before 9.7.2. It has brute-force attack mishandling because the CAS service lacks a limit on login failures.

The DIGITS: WordPress Mobile Number Signup and Login WordPress plugin before 8.4.6.1 does not rate limit OTP validation attempts, making it straightforward for attackers to bruteforce them.