CVE-2026-28741
6.8
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:N
Summary
Mattermost versions 10.11.x <= 10.11.12, 11.5.x <= 11.5.0, 11.4.x <= 11.4.2, 11.3.x <= 11.3.2 fail to validate CSRF tokens on an authentication endpoint which allows an attacker to update a user's authentication method via a CSRF attack by tricking a user into visiting a malicious page. Mattermost Advisory ID: MMSA-2026-00625
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Mattermost | Mattermost | 10.11.0 <= 10.11.12 | affected |
| Mattermost | Mattermost | 11.5.0 <= 11.5.0 | affected |
| Mattermost | Mattermost | 11.4.0 <= 11.4.2 | affected |
| Mattermost | Mattermost | 11.3.0 <= 11.3.2 | affected |
| Mattermost | Mattermost | 10.11.13 | unaffected |
| Mattermost | Mattermost | 11.5.1 | unaffected |
| Mattermost | Mattermost | 11.4.3 | unaffected |
| Mattermost | Mattermost | 11.3.3 | unaffected |
Weaknesses
- CWE-352: CWE-352: Cross-Site Request Forgery (CSRF)
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: total
References
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