CVE-2025-27933

MEDIUM EPSS 9.4%
Published Mar 21, 20251y ago · Modified Jun 17, 20262w ago
4.3 CVSS 3.1
Medium
Find Similar
Published Mar 21, 2025 1y ago
Last Modified Jun 17, 2026 2w ago

Description

Mattermost versions 10.4.x <= 10.4.2, 10.3.x <= 10.3.3, 9.11.x <= 9.11.8 fail to fail to enforce channel conversion restrictions, which allows members with permission to convert public channels to private ones to also convert private ones to public

CVSS Details

Base Score
4.3
Exploitability
2.8
Impact
1.4
Vector string
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity Low
Availability None

Threat Intelligence

EPSS Exploit Probability
9.4% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-863 Incorrect Authorization Authorization

Affected Products 3

VendorProductVersionRange
mattermostmattermost_server*≥9.11.0  –  <9.11.9
mattermostmattermost_server*≥10.3.0  –  <10.3.4
mattermostmattermost_server*≥10.4.0  –  <10.4.3

References 1

  • mattermost.com https://mattermost.com/security-updates
    Vendor Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.