CVE-2026-24031

Dovecot SQL based authentication can be bypassed when authusernamechars is cleared by admin. This vulnerability allows bypassing authentication for any user and user enumeration. Do not clear authusernamechars. If this is not possible, install latest fixed version. No publicly available exploits...

Open-Xchange OX Dovecot Pro 安全漏洞

Open-Xchange OX Dovecot Pro is an email storage and delivery system provided by the German company Open-Xchange. Open-Xchange OX Dovecot Pro has a security vulnerability that can lead to authentication bypass and user enumeration when the authusernamechars field is cleared...

CVE-2026-24031

Dovecot SQL based authentication can be bypassed when authusernamechars is cleared by admin. This vulnerability allows bypassing authentication for any user and user enumeration. Do not clear authusernamechars. If this is not possible, install latest fixed version. No publicly available exploits...

CVE-2026-24031: Improper Neutralization of Special Elements used in an SQL Command

Dovecot SQL based authentication can be bypassed when authusernamechars is cleared by admin. This vulnerability allows bypassing authentication for any user and user enumeration. Do not clear authusernamechars. If this is not possible, install latest fixed version. No publicly available exploits...

UBUNTU-CVE-2026-24031

Dovecot SQL based authentication can be bypassed when authusernamechars is cleared by admin. This vulnerability allows bypassing authentication for any user and user enumeration. Do not clear authusernamechars. If this is not possible, install latest fixed version. No publicly available exploits...

CVE-2026-33638

Ech0 is an open-source, self-hosted publishing platform for personal idea sharing. Prior to version 4.2.0, GET /api/allusers is mounted as a public endpoint and returns user records without authentication. This allows remote unauthenticated user enumeration and exposure of user profile metadata. ...

CVE-2025-69243

Raytha CMS is vulnerable to User Enumeration in password reset functionality. Difference in messages could allow an attacker to determine if the login is valid or not, enabling a brute force attack with valid logins. This issue was fixed in version 1.5.0...

CVE-2026-30876

Chamilo LMS is a learning management system. Prior to version 1.11.36, Chamilo is vulnerable to user enumeration with valid/invalid username. This issue has been patched in version 1.11.36...

CVE-2026-31901

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to 8.6.34 and 9.6.0-alpha.8, the email verification endpoint /verificationEmailRequest returns distinct error responses depending on whether an email address belongs to an existing user, ...

Mattermost 安全漏洞

Mattermost is an open-source collaboration platform developed by the American company Mattermost. There is a security vulnerability in Mattermost; this vulnerability stems from the lack of view limitations when retrieving group member IDs. This could allow authenticated visitors to enumerate user...

CVE-2026-33638: Missing Authorization

Ech0 is an open-source, self-hosted publishing platform for personal idea sharing. Prior to version 4.2.0, GET /api/allusers is mounted as a public endpoint and returns user records without authentication. This allows remote unauthenticated user enumeration and exposure of user profile metadata. ...

Exploit for Race Condition in Openbsd Openssh

CVE-2018-15473 — SSH Username Enumeration Tool A Python 3 r...

AVideo has Pre-Captcha User Enumeration and Account Status Disclosure in Password Recovery Endpoint

Summary The password recovery endpoint at objects/userRecoverPass.php performs user existence and account status checks before validating the captcha. This allows an unauthenticated attacker to enumerate valid usernames and determine whether accounts are active, inactive, or banned — at scale and...

GHSA-M99F-MMVG-3XMX AVideo has Pre-Captcha User Enumeration and Account Status Disclosure in Password Recovery Endpoint

Summary The password recovery endpoint at objects/userRecoverPass.php performs user existence and account status checks before validating the captcha. This allows an unauthenticated attacker to enumerate valid usernames and determine whether accounts are active, inactive, or banned — at scale and...

CVE-2026-33419 MinIO: LDAP login brute-force via user enumeration and missing rate limit

MinIO is a high-performance object storage system. Prior to RELEASE.2026-03-17T21-25-16Z, MinIO AIStor's STS Security Token Service AssumeRoleWithLDAPIdentity endpoint is vulnerable to LDAP credential brute-forcing due to two combined weaknesses: 1 distinguishable error responses that enable...

CVE-2026-33323

Summary (CVE-2026-33323): Parse Server exposes an information disclosure vulnerability in the Pages and legacy PublicAPI routes used to resend email verification links. Before versions 8.6.51 and 9.6.0-alpha.40, these endpoints leak whether a given username exists and has an unverified email by r...

CVE-2026-33323 Parse Server: Email verification resend page leaks user existence

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to versions 8.6.51 and 9.6.0-alpha.40, the Pages route and legacy PublicAPI route for resending email verification links return distinguishable responses depending on whether the provided...

CVE-2026-33323 Parse Server: Email verification resend page leaks user existence

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to versions 8.6.51 and 9.6.0-alpha.40, the Pages route and legacy PublicAPI route for resending email verification links return distinguishable responses depending on whether the provided...

CVE-2026-33688 AVideo has Pre-Captcha User Enumeration and Account Status Disclosure in Password Recovery Endpoint

WWBN AVideo is an open source video platform. In versions up to and including 26.0, the password recovery endpoint at objects/userRecoverPass.php performs user existence and account status checks before validating the captcha. This allows an unauthenticated attacker to enumerate valid usernames a...

CVE-2026-33688 AVideo has Pre-Captcha User Enumeration and Account Status Disclosure in Password Recovery Endpoint

WWBN AVideo is an open source video platform. In versions up to and including 26.0, the password recovery endpoint at objects/userRecoverPass.php performs user existence and account status checks before validating the captcha. This allows an unauthenticated attacker to enumerate valid usernames a...