CVE-2023-5193 – System Role with manage posts permission can read posts of Direct Messages
https://notcve.org/view.php?id=CVE-2023-5193
Mattermost fails to properly check permissions when retrieving a post allowing for a System Role with the permission to manage channels to read the posts of a DM conversation. Mattermost no verifica correctamente los permisos al recuperar una publicación, lo que permite un rol del sistema con permiso para administrar canales para leer las publicaciones de una conversación de DM. • https://mattermost.com/security-updates • CWE-863: Incorrect Authorization •
CVE-2023-5196 – DoS via Channel Notification Properties
https://notcve.org/view.php?id=CVE-2023-5196
Mattermost fails to enforce character limits in all possible notification props allowing an attacker to send a really long value for a notification_prop resulting in the server consuming an abnormal quantity of computing resources and possibly becoming temporarily unavailable for its users. Mattermost no aplica límites de caracteres en todos los posibles accesorios de notificación, lo que permite a un atacante enviar un valor muy largo para un notification_prop, lo que hace que el servidor consuma una cantidad anormal de recursos informáticos y posiblemente deje de estar disponible temporalmente para sus usuarios. • https://mattermost.com/security-updates • CWE-400: Uncontrolled Resource Consumption •
CVE-2023-5159 – A User Manager role with user edit permissions could manage/update bots
https://notcve.org/view.php?id=CVE-2023-5159
Mattermost fails to properly verify the permissions when managing/updating a bot allowing a User Manager role with user edit permissions to manage/update bots. Mattermost no verifica adecuadamente los permisos al administrar/actualizar un bot, permitiendo una función de administrador de usuarios con permisos de edición de usuario para administrar/actualizar bots. • https://mattermost.com/security-updates • CWE-863: Incorrect Authorization •
CVE-2023-2785 – Specially crafted search query can cause large log entries in postgres
https://notcve.org/view.php?id=CVE-2023-2785
Mattermost fails to properly truncate the postgres error log message of a search query failure allowing an attacker to cause the creation of large log files which can result in Denial of Service • https://mattermost.com/security-updates • CWE-400: Uncontrolled Resource Consumption •
CVE-2023-2831 – Denial of Service while unescaping a Markdown string
https://notcve.org/view.php?id=CVE-2023-2831
Mattermost fails to unescape Markdown strings in a memory-efficient way, allowing an attacker to cause a Denial of Service by sending a message containing a large number of escaped characters. • https://mattermost.com/security-updates • CWE-400: Uncontrolled Resource Consumption •