GHSA-vww6-79rv-3j4xMediumCVSS 4.1
Mattermost doesn't verify that post actions invoking `/share-issue-publicly` were created by the Jira plugin
🔗 CVE IDs covered (1)
📋 Description
Mattermost versions 11.1.x <= 11.1.0, 11.0.x <= 11.0.5, 10.12.x <= 10.12.3, 10.11.x <= 10.11.7 fail to verify that post actions invoking /share-issue-publicly were created by the Jira plugin which allowed a malicious Mattermost user to exfiltrate Jira tickets when victim users interacted with affected posts
🎯 Affected products5
- go/github.com/mattermost/mattermost/server/v8:< 8.0.0-20251121122154-b57c297c6d7
- go/github.com/mattermost/mattermost-server:>= 10.11.0, < 10.11.8
- go/github.com/mattermost/mattermost-server:>= 10.12.0, < 10.12.4
- go/github.com/mattermost/mattermost-server:>= 11.0.0, < 11.0.6
- go/github.com/mattermost/mattermost-server:>= 11.1.0, < 11.1.1
🔗 References (6)
- https://nvd.nist.gov/vuln/detail/CVE-2025-64641
- https://mattermost.com/security-updates
- https://github.com/mattermost/mattermost/pull/34551
- https://github.com/mattermost/mattermost/commit/b57c297c6d7ae6812d85e32a625806ac9555deee
- https://pkg.go.dev/vuln/GO-2026-4260
- https://github.com/advisories/GHSA-vww6-79rv-3j4x