high7.6
CVE-2025-9072
Mattermost Open Redirect vulnerability
Impact
Mattermost versions 10.10.x <= 10.10.1, 10.5.x <= 10.5.9, 10.9.x <= 10.9.4 fail to validate the redirect_to parameter, allowing an attacker to craft a malicious link that, once a user authenticates with their SAML provider, could post the user’s cookies to an attacker-controlled URL.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| go | github.com/mattermost/mattermost-server | >= 10.10.0, < 10.10.2 | 10.10.2 |
| go | github.com/mattermost/mattermost/server/v8 | < 8.0.0-20250731063404-9eebaadf8f72 | 8.0.0-20250731063404-9eebaadf8f72 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Mattermost | Mattermost Server | from 10.5.0 before 10.5.10 from 10.9.0 before 10.9.5 from 10.10.0 before 10.10.2 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://mattermost.com/security-updates
- https://github.com/advisories/GHSA-69j8-prx2-vx98
- https://nvd.nist.gov/vuln/detail/CVE-2025-9072
- https://github.com/mattermost/mattermost/commit/13cd76009d31754db46115bddef5287a8a29871a
- https://github.com/mattermost/mattermost/commit/9eebaadf8f720788e99b6997337c8df330271326
- https://github.com/mattermost/mattermost/commit/fda403fb6ec41bea8780bff198a26860f105e6e5