Technology · Mattermost
Mattermost Plugins vulnerabilities
Updated . Rebuilt every hour.
Junglewise Threat Intelligence has tracked 5 vulnerabilities in Mattermost Plugins: 0 in the last 7 days and 0 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-9699, was published on 26 June 2026.
- Last 7 days
- 0
- Last 90 days
- 0
- Critical, all time
- 0
- Exploited in the wild
- 0
About Mattermost Plugins
Mattermost Plugins allow developers to extend and customize the functionality of the Mattermost collaboration platform.
Latest Mattermost Plugins vulnerabilities
- CVE-2026-9699: Mattermost Plugins sensitive information disclosure in OpenAI loggingmediumCVSS 6.8
- CVE-2026-6957: Mattermost Plugins path traversal in shared-channel attachment synchighCVSS 8
- CVE-2026-6342: Mattermost Plugins incorrect authorization in group subscriptionsmediumCVSS 4.3
- CVE-2026-6341: Mattermost Plugins incorrect authorization in group API requestsmediumCVSS 4.3
- CVE-2026-3109: Mattermost Plugins timestamp validation failure in Zoom webhooklowCVSS 2.2EPSS 0.0%
Most severe Mattermost Plugins vulnerabilities
Exploited in the wild first, then by severity and CVSS score.
- CVE-2026-6957: Mattermost Plugins path traversal in shared-channel attachment synchighCVSS 8
- CVE-2026-9699: Mattermost Plugins sensitive information disclosure in OpenAI loggingmediumCVSS 6.8
- CVE-2026-6342: Mattermost Plugins incorrect authorization in group subscriptionsmediumCVSS 4.3
- CVE-2026-6341: Mattermost Plugins incorrect authorization in group API requestsmediumCVSS 4.3
- CVE-2026-3109: Mattermost Plugins timestamp validation failure in Zoom webhooklowCVSS 2.2EPSS 0.0%
Vulnerabilities per week
The last 13 weeks, by the week each vulnerability was published.
| Week of | Bar | Vulns | Critical |
|---|---|---|---|
| 29 Jun 2026 | 0 | 0 | |
| 6 Jul 2026 | 0 | 0 | |
| 13 Jul 2026 | 0 | 0 | |
| 20 Jul 2026 | 0 | 0 | |
| 27 Jul 2026 | 0 | 0 | |
| 3 Aug 2026 | 0 | 0 | |
| 10 Aug 2026 | 0 | 0 | |
| 17 Aug 2026 | 0 | 0 | |
| 24 Aug 2026 | 0 | 0 | |
| 31 Aug 2026 | 0 | 0 | |
| 7 Sep 2026 | 0 | 0 | |
| 14 Sep 2026 | 0 | 0 | |
| 21 Sep 2026 | 0 | 0 |
How this is built
Junglewise Threat Intelligence collects vulnerabilities from NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories, and matches each one to the technologies and vendors it affects. Dates are the date a vulnerability was published, in UTC.
The pages are rebuilt from the database every hour. Frozen weekly and monthly reports never change once published, so they can be cited.
Use this data
The same data is at https://junglewise.ai/threats/technologies/mattermost-plugins.json, for scripts and language models. It is free to reuse under CC BY 4.0 with a link back to this page.
Cite as: Junglewise Threat Intelligence, "Mattermost Plugins vulnerabilities", https://junglewise.ai/threats/technologies/mattermost-plugins, 26 September 2026.