CVE-2025-27933
Last modified
CVE-2025-27933 is a medium-severity vulnerability rated 4.3/10 on the CVSS scale. 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. EPSS estimates a 0.19% chance of exploitation in the next 30 days.
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
Metrics
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Mattermost | Mattermost Server | >= 9.11.0, < 9.11.9 |
| Mattermost | Mattermost Server | >= 10.3.0, < 10.3.4 |
| Mattermost | Mattermost Server | >= 10.4.0, < 10.4.3 |
References
- https://mattermost.com/security-updatesVendor Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
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