CompaniesMattermostMonthly reportsDecember 2025
Mattermost in December 2025: incidents, uptime and changes
0incidents posted
0labelled major or critical
100%free of major/critical
100%free of any incident
0price changes
0notable page changes
Vendor-reported outage time 0 min, incident time 0 min. Derived from the incidents the vendor posted on its own status page, not measured by us. A minute counts as an outage minute when a major or critical incident (as the vendor labelled it) was open; incident minutes include minor ones too. Maintenance and incidents marked "no impact" are left out, overlapping incidents are merged, a resolved incident counts for at most 7 days, and one still open with no resolution counts for at most 24 hours. Last 90 days.
Incidents 0
Mattermost posted no incidents in December 2025.
CVEs published
- CVE-2025-12756 Insecure Direct Object Reference in Mattermost Boards Plugin Enables Unauthorised Comment Deletion (CVSS 4.3)
- CVE-2025-13870 Unauthorized access and subscription vulnerability in Boards (CVSS 3.1)
- CVE-2025-62190 CSRF Allows Call Initiation and Message Delivery (CVSS 4.3)
- CVE-2025-13352 Mattermost GitHub Plugin allows unauthorized GitHub reactions via reaction forwarding hijacking (CVSS 3.0)
- CVE-2025-62690 Open redirect in error page when link opened in new tab (CVSS 3.1)
- CVE-2025-12689 DoS in Calls plugin via malformed UTF-8 in WebSocket request (CVSS 6.5)
- CVE-2025-13321 Mattermost Desktop App logging sensitive information and fails to clear data on server deletion (CVSS 3.3)
- CVE-2025-13324 Lack of Invalidation of Legacy Remote Cluster Invite Tokens After Confirmation (CVSS 3.7)
- CVE-2025-13326 Mattermost Desktop App fails to enable Hardened Runtime when packaged for Mac App Store (CVSS 3.9)
- CVE-2025-14273 Mattermost Jira plugin user spoofing enables Jira request forgery. (CVSS 7.2)
- CVE-2025-13767 Unauthorized Read Access to Private Channel Posts via Mattermost Jira Plugin (CVSS 4.3)
- CVE-2025-64641 Mattermost Jira plugin crafted action leaks Jira issue details (CVSS 4.1)
Cite this
Mattermost posted 0 status incidents in December 2025 (0 major or critical); 0 price changes and 0 notable page changes observed.
- Title
- Mattermost in December 2025
- Vendor
- Mattermost
- Date
- URL
- https://rewindex.com/company/mattermost/2025/12