CVE-2026-3473

Mattermost versions 11.6.x = 11.6.0, 11.5.x = 11.5.3, 11.4.x = 11.4.4, 10.11.x = 10.11.14 fail to validate file ownership and access control, which allows an authenticated user to access and download files belonging to other users or teams via crafted Boards API requests using valid file IDs...

The vulnerability of the Boards API (Focalboard) interface of the Mattermost instant messaging application, which allows a malicious user to gain unauthorized access to protected information.

The vulnerability of the Boards API Focalboard interface of the Mattermost instant messaging application relates to bypassing authentication using a user-controlled key. Exploiting this vulnerability could allow an intruder, operating remotely, to gain unauthorized access to protected information...

Authorization Bypass Through User-Controlled Key

Overview Affected versions of this package are vulnerable to Authorization Bypass Through User-Controlled Key via the Boards API when file ownership and access control are not properly validated. An attacker can gain unauthorized access to and download files belonging to other users or teams by...

Authorization Bypass Through User-Controlled Key

Overview Affected versions of this package are vulnerable to Authorization Bypass Through User-Controlled Key via the Boards API when file ownership and access control are not properly validated. An attacker can gain unauthorized access to and download files belonging to other users or teams by...

CVE-2026-3473

Mattermost versions 11.6.x = 11.6.0, 11.5.x = 11.5.3, 11.4.x = 11.4.4, 10.11.x = 10.11.14 fail to validate file ownership and access control, which allows an authenticated user to access and download files belonging to other users or teams via crafted Boards API requests using valid file IDs...

PT-2026-42745

Name of the Vulnerable Software and Affected Versions Mattermost version 11.6.0 Mattermost version 11.5.3 Mattermost version 11.4.4 Mattermost version 10.11.14 Description Improper validation of file ownership and access control in the Boards API allows an authenticated user to access and downloa...

CVE-2026-2495

The WPNakama – Team and multi-Client Collaboration, Editorial and Project Management plugin for WordPress is vulnerable to SQL Injection via the 'order' parameter of the '/wp-json/WPNakama/v1/boards' REST API endpoint in all versions up to, and including, 0.6.5. This is due to insufficient escapi...

CVE-2026-1892

A security vulnerability has been detected in WeKan up to 8.20. This affects the function setBoardOrgs of the file models/boards.js of the component REST API. Such manipulation of the argument item.cardId/item.checklistId/card.boardId leads to improper authorization. The attack may be launched...