VDB
CVE-2025-13767
CVE-2025-13767
PUBLISHED
CVSS 4.300000190734863 MEDIUM
Mattermost doesn't validate user channel membership when attaching Mattermost posts as comments to Jira issues
EPSS 0.03% · 10.0th percentile
Risk Scores
CVSS v3.1
4.300000190734863
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
EPSS Score
0.03%
10.0th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| github.com | mattermost/mattermost/server/v8 | 0, 0 |
| Mattermost | Mattermost | 10.11.8, 10.11.0, 11.2.0 |
| mattermost | mattermost_server | 10.11.0, 10.12.0, 11.1.0 |
| github.com | mattermost/mattermost-server | 10.11.0, 10.12.0, 11.0.0 |
Timeline
- Dec 24, 2025 CVE Published
- Dec 24, 2025 EPSS Score
- Dec 24, 2025 PoC Published
- Dec 28, 2025 EPSS Score
- Dec 31, 2025 EPSS Score
- Jan 4, 2026 EPSS Score
- Jan 8, 2026 EPSS Score
- Jan 11, 2026 EPSS Score
- Jan 15, 2026 EPSS Score
- Jan 19, 2026 EPSS Score
- Jan 22, 2026 EPSS Score
- Jan 26, 2026 EPSS Score
References
- https://mattermost.com/security-updates url
- https://nvd.nist.gov/vuln/detail/CVE-2025-13767 advisory
- https://github.com/mattermost/mattermost/pull/34551 url
- https://github.com/mattermost/mattermost/commit/b57c297c6d7ae6812d85e32a625806ac9555deee url
- https://github.com/mattermost/mattermost package
- https://pkg.go.dev/vuln/GO-2026-4259 url