CVE-2026-59206 n8n: Prototype Pollution via Workflow Credentials Leads to Unauthenticated User and Project Enumeration

n8n is an open source workflow automation platform. Prior to 1.123.61, 2.27.4, and, 2.28.1, an authenticated user with the default workflow:create permission could pollute Object.prototype through a crafted workflow saved, updated, or imported via the workflow API, allowing unauthenticated reques...

CVE-2026-59206

n8n is affected by a prototype pollution vulnerability in which an authenticated user with the default workflow:create permission could pollute Object.prototype via a crafted workflow saved, updated, or imported through the workflow API. This corruption could cause unauthenticated requests to be ...

CVE-2026-59206 n8n: Prototype Pollution via Workflow Credentials Leads to Unauthenticated User and Project Enumeration

n8n is an open source workflow automation platform. Prior to 1.123.61, 2.27.4, and, 2.28.1, an authenticated user with the default workflow:create permission could pollute Object.prototype through a crafted workflow saved, updated, or imported via the workflow API, allowing unauthenticated reques...

CVE-2026-51926

An issue in docuForm GmbH FSM Client v.11.11c allows a remote attacker to obtain sensitive information via the login.php component. A vulnerability was identified in the authentication mechanism that allows user enumeration through the login interface. An attacker can differentiate between valid...

CVE-2026-59712

Leantime's Users::getUser method in the JSON-RPC API lacks proper authorization checks, allowing authenticated users to retrieve full user credential rows including password hashes, TOTP secrets, and session tokens. Attackers can exploit this by calling users.getUser with arbitrary user IDs to...

CVE-2026-59712 Leantime - JSON-RPC API Broken Access Control via users.getUser

Leantime's Users::getUser method in the JSON-RPC API lacks proper authorization checks, allowing authenticated users to retrieve full user credential rows including password hashes, TOTP secrets, and session tokens. Attackers can exploit this by calling users.getUser with arbitrary user IDs to...

CVE-2026-53908

MCO is vulnerable to User Enumeration through authentication-related functionalities. The application returns distinguishable responses for valid and invalid users during username reminder and password reset operations. An attacker can leverage these differences to enumerate valid usernames and...

CVE-2026-53908

MCO is vulnerable to User Enumeration through authentication-related functionalities. The application returns distinguishable responses for valid and invalid users during username reminder and password reset operations. An attacker can leverage these differences to enumerate valid usernames and...

EUVD-2026-40954

MCO is vulnerable to User Enumeration through authentication-related functionalities. The application returns distinguishable responses for valid and invalid users during username reminder and password reset operations. An attacker can leverage these differences to enumerate valid usernames and...

CVE-2026-53908

CVE-2026-53908 affects MCO. The vulnerability enables user enumeration via authentication-related functions: username reminder and password reset responses differ for valid vs invalid users, allowing an attacker to discover valid usernames and email addresses. Vulnerable context: confirmed in ver...

CVE-2026-10750

The Royal MCP WordPress plugin before 1.4.26 does not perform capability checks on the majority of its MCP tools after token authentication, allowing authenticated users with a low-privileged role such as Subscriber to read private content, enumerate all users and their roles, and create, modify,...

CVE-2026-10750

CVE-2026-10750 concerns the Royal MCP WordPress plugin prior to 1.4.26. The issue arises because the plugin does not perform capability checks on most MCP tools after token authentication, enabling authenticated, low-privilege users (e.g., Subscriber) to read private content, enumerate users and ...

PT-2026-54834

Name of the Vulnerable Software and Affected Versions MCO version 25.3.3.1 Description The application is susceptible to user enumeration via authentication-related features. During password reset and username reminder operations, the system provides different responses depending on whether the...

CVE-2026-56300 Capgo - Unauthenticated API Key Validity and Permission Oracle via RPC Functions

Capgo before 12.128.2 contains unauthenticated security definer RPC functions getuserid and getorgpermforapikey that expose API key validity oracles and user UUID disclosure. Unauthenticated attackers using the public API key can validate leaked keys, enumerate users and apps, and determine...

CVE-2026-44731 OpenProject: Improper Access Control on OpenProject through /projects/[projectName]/meetings via "invited_user_id" in GET parameter "filters" leads to user names disclosure

OpenProject is open-source, web-based project management software. Prior to 17.3.2 and 17.4.0, the web application's meetings filter feature leaks whether a given user ID corresponds to a valid account and discloses the user's full name, allowing an attacker to enumerate all existing user account...

CVE-2026-44731

OpenProject is open-source, web-based project management software. Prior to 17.3.2 and 17.4.0, the web application's meetings filter feature leaks whether a given user ID corresponds to a valid account and discloses the user's full name, allowing an attacker to enumerate all existing user account...

CVE-2026-44731

OpenProject contains an input leakage in the web application’s meetings filter feature that lets an attacker determine whether a user ID is valid and view the user’s full name, enabling enumeration of existing accounts. The issue occurs before versions 17.3.2 and 17.4.0 and is resolved by upgradi...

CVE-2026-44731 OpenProject: Improper Access Control on OpenProject through /projects/[projectName]/meetings via "invited_user_id" in GET parameter "filters" leads to user names disclosure

OpenProject is open-source, web-based project management software. Prior to 17.3.2 and 17.4.0, the web application's meetings filter feature leaks whether a given user ID corresponds to a valid account and discloses the user's full name, allowing an attacker to enumerate all existing user account...

PT-2026-52900

Name of the Vulnerable Software and Affected Versions OpenProject versions prior to 17.3.2 OpenProject versions prior to 17.4.0 Description The meetings filter feature in the web application allows an attacker to enumerate existing user accounts by probing user IDs and observing differences in...

GO-2026-5512 Mattermost allows authenticated guest users to enumerate user IDs outside their allowed visibility scope in github.com/mattermost/mattermost-server

Mattermost allows authenticated guest users to enumerate user IDs outside their allowed visibility scope in github.com/mattermost/mattermost-server...