CVE-2026-4265 Guest user can upload files without permission across teams

Mattermost versions 11.3.x = 11.3.0, 11.2.x = 11.2.2, 10.11.x = 10.11.10 fail to validate team-specific uploadfile permissions which allows a guest user to post files in channels where they lack uploadfile permission via uploading files in a team where they have permission and reusing the file...

CVE-2025-14573 Team Admin Bypass of Invite Permissions via allow_open_invite Field

Mattermost versions 10.11.x = 10.11.9 fail to enforce invite permissions when updating team settings, which allows team administrators without proper permissions to bypass restrictions and add users to their team via API requests. Mattermost Advisory ID: MMSA-2025-00561...

Improper Access Control

github.com/mattermost/mattermost-server is vulnerable to Improper Access Control. The vulnerability is caused due to a failure to properly enforce permissions which allows a user with systems manager role with read-only access to teams to perform write operations on teams...

Improper Access Control

github.com/mattermost/mattermost-server is vulnerable to Improper Access Control. The vulnerability is caused due to a failure to enforce permissions which allows a guest user with read access to upload files to a channel...

JVN#59394343: Multiple vulnerabilities in OpenDolphin

OpenDolphin provided by Life Sciences Computing Corporation contains multiple vulnerabilities listed below. Privilege escalation - CVE-2018-16161 Version| Vector| Score ---|---|--- CVSS v3| CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H| Base Score: 8.8 CVSS v2| AV:N/AC:L/AU:S/C:P/I:P/A:P| Base...