Vulnerability Description
An issue was discovered in Mattermost Server before 5.2 and 5.1.1. Authorization could be bypassed if the channel name were not the same in the params and the body.
CVSS Score
9.8
CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Mattermost | Mattermost Server | < 5.1.1 |
Related Weaknesses (CWE)
References
- https://mattermost.com/security-updates/Vendor Advisory
- https://mattermost.com/security-updates/Vendor Advisory
FAQ
What is CVE-2018-21251?
CVE-2018-21251 is a vulnerability with a CVSS score of 9.8 (CRITICAL). An issue was discovered in Mattermost Server before 5.2 and 5.1.1. Authorization could be bypassed if the channel name were not the same in the params and the body.
How severe is CVE-2018-21251?
CVE-2018-21251 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2018-21251?
Check the references section above for vendor advisories and patch information. Affected products include: Mattermost Mattermost Server.