Upstream information
Description
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.SUSE information
Overall state of this security issue: Does not affect SUSE products
This issue is currently rated as having important severity.
| CNA (Mattermost) | National Vulnerability Database | |
|---|---|---|
| Base Score | 7.6 | 5.4 |
| Vector | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:L | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N |
| Attack Vector | Network | Network |
| Attack Complexity | Low | Low |
| Privileges Required | Low | Low |
| User Interaction | Required | Required |
| Scope | Unchanged | Changed |
| Confidentiality Impact | High | Low |
| Integrity Impact | High | Low |
| Availability Impact | Low | None |
| CVSSv3 Version | 3.1 | 3.1 |
List of released packages
| Product(s) | Fixed package version(s) | References |
|---|---|---|
| openSUSE Tumbleweed |
| Patchnames: openSUSE-Tumbleweed-2025-15564 |
SUSE Timeline for this CVE
CVE page created: Mon Sep 15 14:00:06 2025CVE page last modified: Fri Sep 19 01:23:39 2025