The version of Mattermost Server running on the remote host is prior to 7.8.13, 8.x prior to 8.1.4, 9.0.x prior to 9.0.2 or 9.1.x prior to 9.1.1. It is, therefore, affected by multiple vulnerabilities as referenced in the MMSA-2023-00218, MMSA-2023-00219, MMSA-2023-00233, MMSA-2023-00241, MMSA-2023-00252 and MMSA-2023-00254 security advisories. Mattermost fails to limit the amount of data extracted from compressed archives during board import in Mattermost Boards allowing an attacker to consume excessive resources, possibly leading to Denial of Service, by importing a board using a specially crafted zip (zip bomb). (CVE-2023-48268) (MMSA-2023-00218) Mattermost fails to properly limit the characters allowed in different fields of a block in Mattermost Boards allowing a attacker to consume excessive resources, possibly leading to Denial of Service, by patching the field of a block using a specially crafted string. (CVE-2023-40709) (MMSA-2023-00219) Mattermost fails to properly check a redirect URL parameter allowing for an open redirect was possible when the user clicked 'Back to Mattermost' after providing a invalid custom url scheme in /oauth/{service}/mobile_login?redirect_to= (CVE-2023-47168) (MMSA-2023-00252) Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version…Read More