Communication and Collaboration

In Mattermost versions 10.7.x ≤ 10.7.0, 10.5.x ≤ 10.5.3 and 9.11.x ≤ 9.11.12 a high severity vulnerability CVE-2025-1792 was detected. This vulnerability allows authenticated guest users to view metadata about members of public channels via the channel members API endpoint due to insufficient enforcement of access controls. To address this issue, users should upgrade Mattermost to versions 10.7.1, 10.5.4, 9.11.13 or later. For more details, visit https://nvd.nist.gov/vuln/detail/CVE-2025-1792.

In Discourse versions prior to 3.4.3 (stable) and 3.5.0.beta3 (beta) a medium severity vulnerability CVE-2025-32376 was detected. This vulnerability allows attackers to bypass the user limit for direct messages (DMs), potentially enabling the creation of a DM including every user on a site. To address this issue, users should upgrade Discourse to versions 3.4.3 (stable) or later, 3.5.0.beta3 (beta) or later. For more details, visit https://nvd.nist.gov/vuln/detail/CVE-2025-32376.

In Mattermost versions 10.4.x ≤ 10.4.2, 10.5.x ≤ 10.5.0 and 9.11.x ≤ 9.11.10 a medium severity vulnerability CVE-2025-41395 was detected. This issue arises from improper validation of `props` in the `RetrospectivePost` custom post type in the Playbooks plugin, allowing attackers to craft posts that can trigger a denial of service (DoS) across the web app for all users. To address this issue, users should upgrade Mattermost to versions 10.6.0, 10.4.3, 10.5.1, 9.11.11 or later. For more details, visit https://nvd.nist.gov/vuln/detail/CVE-2025-41395.

In Mattermost versions 10.4.x ≤ 10.4.2, 10.5.x ≤ 10.5.0 and 9.11.x ≤ 9.11.10 a medium severity vulnerability CVE-2025-35965 was identified. The issue lies in the failure to validate the uniqueness and quantity of task actions within the UpdateRunTaskActions GraphQL operation, allowing attackers to create tasks with excessive triggered actions that can overwhelm the server and cause a denial-of-service (DoS) condition. To resolve this issue, users should upgrade Mattermost to versions 10.6.0, 10.4.3, 10.5.1, 9.11.11 or later. For more details, visit https://nvd.nist.gov/vuln/detail/CVE-2025-35965.

In Mattermost versions 10.4.x ≤ 10.4.2, 10.5.x ≤ 10.5.0 and 9.11.x ≤ 9.11.10 a low severity vulnerability CVE-2025-41423 was detected. This issue allows any user or attacker to delete posts created by the Playbooks bot through the `/plugins/playbooks/api/v0/signal/keywords/ignore-thread` API endpoint, even without channel access or proper permissions. To address this issue, users should upgrade Mattermost to versions 10.6.0, 10.4.3, 10.5.1, 9.11.11 or later. For more details, visit https://nvd.nist.gov/vuln/detail/CVE-2025-41423.

In Mattermost versions 10.5.x ≤ 10.5.1, 10.4.x ≤ 10.4.3 and 9.11.x ≤ 9.11.9 a medium severity vulnerability CVE-2025-2564 was detected. This vulnerability allows authenticated users to view members and member information of archived channels even when the ‘Allow users to view/update archived channels’ setting is disabled. To address this issue, users should upgrade Mattermost to versions 10.5.2, 10.4.4, 9.11.10 or later. For more details, visit https://nvd.nist.gov/vuln/detail/CVE-2025-2564.

In Zulip versions prior to 10.2 a high severity vulnerability CVE-2025-31478 was detected. This vulnerability allows attackers to create accounts in organizations configured to use SSO-only authentication, even without having an account with the configured SSO backend. To address this issue, users should upgrade Zulip to version 10.2. For more details, visit https://nvd.nist.gov/vuln/detail/CVE-2025-31478.

In Mattermost versions 10.5.0 to 10.5.1 and 9.11.0 to 9.11.9 a low severity vulnerability CVE-2025-27538 was detected. This vulnerability allows users with certain permissions to turn MFA on or off for other users without proper checks. Currently, there is no fix version for this issue. For more details, visit https://avd.aquasec.com/nvd/2025/cve-2025-27538.

In Mattermost versions 10.5.x ≤ 10.5.1, 10.4.x ≤ 10.4.3 and 9.11.x ≤ 9.11.9 a medium severity vulnerability CVE-2025-2475 was detected. This vulnerability allows attackers to log in once using normal credentials after a user account is converted to a bot, due to improper cache invalidation. To address this issue, users should upgrade Mattermost to versions 10.6.0, 10.5.2, 10.4.4, 9.11.10 or higher. For more details, visit https://nvd.nist.gov/vuln/detail/CVE-2025-2475.