PT-2026-28528

Name of the Vulnerable Software and Affected Versions Group-Office versions prior to 6.8.158 Group-Office versions prior to 25.0.92 Group-Office versions prior to 26.0.17 Description Group-Office is an enterprise customer relationship management and groupware tool. An authenticated SQL Injection...

CVE-2026-3115

A flaw was found in Mattermost. Authenticated guest users can exploit this vulnerability by retrieving group member IDs through the group retrieval endpoint. This failure to apply view restrictions allows them to enumerate user IDs that are outside their permitted visibility scope, leading to...

Incorrect Authorization

Overview github.com/mattermost/mattermost/server/channels/app is a private-cloud Slack alternative Affected versions of this package are vulnerable to Incorrect Authorization via the group retrieval endpoint. An attacker can enumerate user IDs outside their allowed visibility scope by sending...

Mattermost allows authenticated guest users to enumerate user IDs outside their allowed visibility scope

Mattermost versions 11.2.x = 11.2.2, 10.11.x = 10.11.10, 11.4.x = 11.4.0, 11.3.x = 11.3.1 fail to apply view restrictions when retrieving group member IDs, which allows authenticated guest users to enumerate user IDs outside their allowed visibility scope via the group retrieval endpoint...

EUVD-2026-16245

Mattermost versions 11.2.x = 11.2.2, 10.11.x = 10.11.10, 11.4.x = 11.4.0, 11.3.x = 11.3.1 fail to apply view restrictions when retrieving group member IDs, which allows authenticated guest users to enumerate user IDs outside their allowed visibility scope via the group retrieval endpoint...

GHSA-MPC7-MM28-F6WQ Mattermost allows authenticated guest users to enumerate user IDs outside their allowed visibility scope

Mattermost versions 11.2.x = 11.2.2, 10.11.x = 10.11.10, 11.4.x = 11.4.0, 11.3.x = 11.3.1 fail to apply view restrictions when retrieving group member IDs, which allows authenticated guest users to enumerate user IDs outside their allowed visibility scope via the group retrieval endpoint...

CVE-2026-3115

Mattermost versions 11.2.x = 11.2.2, 10.11.x = 10.11.10, 11.4.x = 11.4.0, 11.3.x = 11.3.1 fail to apply view restrictions when retrieving group member IDs, which allows authenticated guest users to enumerate user IDs outside their allowed visibility scope via the group retrieval endpoint...

CVE-2026-33402

Sakai is a Collaboration and Learning Environment CLE. In versions 23.0 through 23.4 and 25.0 through 25.1, group titles and description can contain cross-site scripting scripts. The patch is included in releases 25.2 and 23.5. As a workaround, one can check the SAKAISITEGROUP table for titles an...

CVE-2025-14595

GitLab has remediated an issue in GitLab EE affecting all versions from 18.6 before 18.8.7, 18.9 before 18.9.3, and 18.10 before 18.10.1 that under certain conditions could have allowed an authenticated user with Planner role to view security category metadata and attributes in group security...

CVE-2026-33402 SAK-52311: Sakai site-manage group titles can contain XSS content

Sakai is a Collaboration and Learning Environment CLE. In versions 23.0 through 23.4 and 25.0 through 25.1, group titles and description can contain cross-site scripting scripts. The patch is included in releases 25.2 and 23.5. As a workaround, one can check the SAKAISITEGROUP table for titles an...

CVE-2026-33402 SAK-52311: Sakai site-manage group titles can contain XSS content

Sakai is a Collaboration and Learning Environment CLE. In versions 23.0 through 23.4 and 25.0 through 25.1, group titles and description can contain cross-site scripting scripts. The patch is included in releases 25.2 and 23.5. As a workaround, one can check the SAKAISITEGROUP table for titles an...

EUVD-2026-16256

Sakai is a Collaboration and Learning Environment CLE. In versions 23.0 through 23.4 and 25.0 through 25.1, group titles and description can contain cross-site scripting scripts. The patch is included in releases 25.2 and 23.5. As a workaround, one can check the SAKAISITEGROUP table for titles an...

CVE-2026-33402

Sakai (CLE) vulnerability CVE-2026-33402 affects versions 23.0–23.4 and 25.0–25.1, where group titles and descriptions can contain cross-site scripting scripts. The fix is included in releases 23.5 and 25.2. As a workaround, verify the SAKAI_SITE_GROUP table for titles/descriptions that may conta...

CVE-2026-33402

Sakai is a Collaboration and Learning Environment CLE. In versions 23.0 through 23.4 and 25.0 through 25.1, group titles and description can contain cross-site scripting scripts. The patch is included in releases 25.2 and 23.5. As a workaround, one can check the SAKAISITEGROUP table for titles an...

CVE-2026-33402 SAK-52311: Sakai site-manage group titles can contain XSS content

Sakai is a Collaboration and Learning Environment CLE. In versions 23.0 through 23.4 and 25.0 through 25.1, group titles and description can contain cross-site scripting scripts. The patch is included in releases 25.2 and 23.5. As a workaround, one can check the SAKAISITEGROUP table for titles an...

CVE-2026-3115 Guest users can view group member IDs without respecting view restrictions

Mattermost versions 11.2.x = 11.2.2, 10.11.x = 10.11.10, 11.4.x = 11.4.0, 11.3.x = 11.3.1 fail to apply view restrictions when retrieving group member IDs, which allows authenticated guest users to enumerate user IDs outside their allowed visibility scope via the group retrieval endpoint...

CVE-2026-3115

Mattermost fixes for CVE-2026-3115 affect this product family: versions 11.2.x ≤ 11.2.2, 10.11.x ≤ 10.11.10, 11.4.x ≤ 11.4.0, and 11.3.x ≤ 11.3.1 fail to apply view restrictions when retrieving group member IDs. This allows authenticated guest users to enumerate user IDs outside their visibility ...

CVE-2026-3115

Mattermost versions 11.2.x = 11.2.2, 10.11.x = 10.11.10, 11.4.x = 11.4.0, 11.3.x = 11.3.1 fail to apply view restrictions when retrieving group member IDs, which allows authenticated guest users to enumerate user IDs outside their allowed visibility scope via the group retrieval endpoint...

CVE-2026-3115 Guest users can view group member IDs without respecting view restrictions

Mattermost versions 11.2.x = 11.2.2, 10.11.x = 10.11.10, 11.4.x = 11.4.0, 11.3.x = 11.3.1 fail to apply view restrictions when retrieving group member IDs, which allows authenticated guest users to enumerate user IDs outside their allowed visibility scope via the group retrieval endpoint...

CVE-2026-3115 Guest users can view group member IDs without respecting view restrictions

Mattermost versions 11.2.x = 11.2.2, 10.11.x = 10.11.10, 11.4.x = 11.4.0, 11.3.x = 11.3.1 fail to apply view restrictions when retrieving group member IDs, which allows authenticated guest users to enumerate user IDs outside their allowed visibility scope via the group retrieval endpoint...