CVE-2025-9084 Details
Description
Mattermost versions 10.5.x <= 10.5.9 fail to properly validate redirect URLs which allows attackers to redirect users to malicious sites via crafted OAuth login URLs
A vulnerability exists in Mattermost versions 10.5.x through 10.5.9, where the application fails to properly validate redirect URLs. This flaw allows attackers to craft OAuth login URLs that redirect users to malicious sites.
Users can upgrade to Mattermost version 10.11.010.5.10 to address this vulnerability.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed Sep 15, 2025References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://mattermost.com/security-updates | [email protected] | Vendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-601 | URL Redirection to Untrusted Site ('Open Redirect') | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| mattermost mattermost server | >= 10.5.0, < 10.5.10 |
CPE
Remediation
| |
Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Sep 16, 2025 | Initial Analysis | [email protected] |
| Sep 15, 2025 | New CVE Received | [email protected] |