
CVE-2023-47858 – Details of archived public channels are leaked to members of another team
https://notcve.org/view.php?id=CVE-2023-47858
02 Jan 2024 — Mattermost fails to properly verify the permissions needed for viewing archived public channels, allowing a member of one team to get details about the archived public channels of another team via the GET /api/v4/teams/

CVE-2023-50333 – Lack of restriction to manage group names for freshly demoted guests
https://notcve.org/view.php?id=CVE-2023-50333
02 Jan 2024 — Mattermost fails to update the permissions of the current session for a user who was just demoted to guest, allowing freshly demoted guests to change group names. Mattermost no actualiza los permisos de la sesión actual para un usuario que acaba de ser degradado a invitado, lo que permite a los invitados recién degradados cambiar los nombres de los grupos. Mattermost fails to update the permissions of the current session for a user who was just demoted to guest, allowing freshly demoted guests to change gro... • https://mattermost.com/security-updates • CWE-284: Improper Access Control •

CVE-2023-48732 – Keywords that trigger mentions are leaked to other users
https://notcve.org/view.php?id=CVE-2023-48732
02 Jan 2024 — Mattermost fails to scope the WebSocket response around notified users to a each user separately resulting in the WebSocket broadcasting the information about who was notified about a post to everyone else in the channel. Mattermost no logra abarcar la respuesta de WebSocket en torno a los usuarios notificados para cada usuario por separado, lo que hace que WebSocket transmita la información sobre quién fue notificado sobre una publicación a todos los demás en el canal. Mattermost fails to scope the WebSock... • https://mattermost.com/security-updates • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor •

CVE-2023-7114
https://notcve.org/view.php?id=CVE-2023-7114
29 Dec 2023 — Mattermost version 2.10.0 and earlier fails to sanitize deeplink paths, which allows an attacker to perform CSRF attacks against the server. La versión 2.10.0 y anteriores de Mattermost no sanitizan las rutas de enlace profundo, lo que permite a un atacante realizar ataques CSRF contra el servidor. • https://mattermost.com/security-updates • CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') CWE-74: Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection') •

CVE-2023-7113
https://notcve.org/view.php?id=CVE-2023-7113
29 Dec 2023 — Mattermost version 8.1.6 and earlier fails to sanitize channel mention data in posts, which allows an attacker to inject markup in the web client. La versión 8.1.6 y anteriores de Mattermost no sanitizan los datos de menciones del canal en las publicaciones, lo que permite a un atacante inyectar marcas en el cliente web. • https://mattermost.com/security-updates • CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') •

CVE-2023-6727 – Leak Inaccessible Playbook Information via Channel Action IDOR
https://notcve.org/view.php?id=CVE-2023-6727
12 Dec 2023 — Mattermost fails to perform correct authorization checks when creating a playbook action, allowing users without access to the playbook to create playbook actions. If the playbook action created is to post a message in a channel based on specific keywords in a post, some playbook information, like the name, can be leaked. Mattermost no realiza comprobaciones de autorización correctas al crear una acción del playbook, lo que permite a los usuarios sin acceso al playbook crear acciones del playbook. Si la acc... • https://mattermost.com/security-updates • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor •

CVE-2023-45316 – Reflected client side path traversal leading to CSRF in Playbooks
https://notcve.org/view.php?id=CVE-2023-45316
12 Dec 2023 — Mattermost fails to validate if a relative path is passed in /plugins/playbooks/api/v0/telemetry/run/

CVE-2023-6547 – Playbooks access/modification by removed team member
https://notcve.org/view.php?id=CVE-2023-6547
12 Dec 2023 — Mattermost fails to validate team membership when a user attempts to access a playbook, allowing a user with permissions to a playbook but no permissions to the team the playbook is on to access and modify the playbook. This can happen if the user was once a member of the team, got permissions to the playbook and was then removed from the team. Mattermost no valida la membresía del equipo cuando un usuario intenta acceder a un playbook, lo que permite que un usuario con permisos para un playbook pero sin pe... • https://mattermost.com/security-updates • CWE-284: Improper Access Control •

CVE-2023-49607 – Playbook plugin crash via missing interface type assertion
https://notcve.org/view.php?id=CVE-2023-49607
12 Dec 2023 — Mattermost fails to validate the type of the "reminder" body request parameter allowing an attacker to crash the Playbook Plugin when updating the status dialog. Mattermost no logra validar el tipo de parámetro de solicitud del cuerpo "recordatorio", lo que permite a un atacante bloquear el complemento Playbook al actualizar el cuadro de diálogo de estado. • https://mattermost.com/security-updates • CWE-754: Improper Check for Unusual or Exceptional Conditions •

CVE-2023-49809 – Todo plugin gets crashed and disabled by member
https://notcve.org/view.php?id=CVE-2023-49809
12 Dec 2023 — Mattermost fails to handle a null request body in the /add endpoint, allowing a simple member to send a request with null request body to that endpoint and make it crash. After a few repetitions, the plugin is disabled. Mattermost no logra manejar un cuerpo de solicitud nulo en el endpoint /add, lo que permite que un miembro simple envíe una solicitud con un cuerpo de solicitud nulo a ese endpoint y haga que falle. Después de algunas repeticiones, el complemento se desactiva. • https://mattermost.com/security-updates • CWE-400: Uncontrolled Resource Consumption •