| ID |
CVE-2026-18551
|
| Sažetak |
Mattermost versions 11.10.x <= 11.10.0, 11.7.x <= 11.7.9, 11.9.x <= 11.9.1, 11.8.x <= 11.8.5 fail to validate the combination of guest and admin scheme roles which allows an authenticated attacker to escalate a guest account to team or channel admin via a crafted PUT request to the member roles API endpoint.. Mattermost Advisory ID: MMSA-2026-00752 |
| Reference |
|
| CVSS |
| Base: | 6.5 |
| Impact: | 5.2 |
| Exploitability: | 1.2 |
|
| Pristup |
| Vektor | Složenost | Autentikacija |
| NETWORK |
LOW |
HIGH |
|
| Impact |
| Povjerljivost | Cjelovitost | Dostupnost |
| HIGH |
HIGH |
NONE |
|
| CVSS vektor |
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N |
| Zadnje važnije ažuriranje |
29-10-2026 - 18:00 |
| Objavljeno |
16-10-2026 - 07:17 |
