| Reporter | Title | Published | Views | Family All 13 |
|---|---|---|---|---|
 | CVE-2026-9816 | 17 Aug 202622:05 | – | attackerkb |
 | CVE-2026-9816 | 17 Aug 202623:00 | – | circl |
 | CVE-2026-9816 Insufficient server-side validation of board member role fields permits privilege escalation | 17 Aug 202622:05 | – | cvelist |
 | EUVD-2026-60540 | 18 Aug 202600:30 | – | euvd |
 | Mattermost Server 10.11.x < 10.11.22 / 11.7.x < 11.7.7 / 11.8.x < 11.8.4 Multiple Vulnerabilities (MMSA-2026-00685, MMSA-2026-00686, MMSA-2026-00687, MMSA-2026-00691) | 20 Aug 202600:00 | – | nessus |
 | CVE-2026-9816 | 17 Aug 202622:05 | – | mend |
 | Vulnerabilities in Mattermost | 19 Aug 202606:34 | – | ncsc |
 | CVE-2026-9816 | 17 Aug 202622:17 | – | nvd |
 | MINI-FP4M-WQWP-RQR4 | 20 Aug 202613:47 | – | osv_mini |
| MINI-XR3M-78C3-9GFG | 20 Aug 202613:47 | – | osv_mini |
10
Node
OR
[
{
"defaultStatus": "unaffected",
"product": "Mattermost",
"vendor": "Mattermost",
"versions": [
{
"lessThanOrEqual": "11.7.6",
"status": "affected",
"version": "11.7.0",
"versionType": "semver"
},
{
"lessThanOrEqual": "10.11.21",
"status": "affected",
"version": "10.11.0",
"versionType": "semver"
},
{
"lessThanOrEqual": "11.8.3",
"status": "affected",
"version": "11.8.0",
"versionType": "semver"
},
{
"version": "11.9.0",
"status": "unaffected"
},
{
"version": "11.7.7",
"status": "unaffected"
},
{
"version": "10.11.22",
"status": "unaffected"
},
{
"version": "11.8.4",
"status": "unaffected"
}
]
}
]| Source | Link |
|---|---|
| mattermost | www.mattermost.com/security-updates |
| Parameter | Position | Path | Description | CWE |
|---|---|---|---|---|
| BoardMember.Scheme* | request body | /api/v2/boards/{boardID}/members | Failure to validate BoardMember.Scheme* fields on the insert path allows a board editor or non-guest team member to grant board admin to arbitrary users. | CWE-863 |
| BoardMember.Scheme* | request body | /api/v2/teams/{teamID}/archive/import | Failure to validate BoardMember.Scheme* fields on the archive-import path allows a board editor or non-guest team member to grant board admin to arbitrary users. | CWE-863 |
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19 Aug 2026 13:29Current
5.9Medium risk
Vulners AI Score5.9
CVSS 3.18.3
EPSS0.0035
SSVC