CVE-2018-21251
First published: Fri Jun 19 2020(Updated: )
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.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Mattermost | <5.1.1 | |
| Mattermost | =5.2.0-rc1 | |
| Mattermost | =5.2.0-rc2 | |
| Mattermost | =5.2.0-rc3 | |
| Mattermost | =5.2.0-rc4 | |
| Mattermost | =5.2.0-rc5 | |
| Mattermost | =5.2.0-rc6 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2018-21251?
CVE-2018-21251 is classified as a medium severity vulnerability due to its potential to allow unauthorized access.
How do I fix CVE-2018-21251?
To fix CVE-2018-21251, you need to update Mattermost Server to version 5.2 or higher.
Which versions are affected by CVE-2018-21251?
CVE-2018-21251 affects Mattermost Server versions prior to 5.2 and version 5.1.1.
Can CVE-2018-21251 be exploited remotely?
Yes, CVE-2018-21251 can be exploited remotely if the vulnerability is present in the server.
What type of vulnerability is CVE-2018-21251?
CVE-2018-21251 is an authorization bypass vulnerability.
- agent/type
- agent/softwarecombine
- collector/mitre-cve
- source/MITRE
- agent/weakness
- agent/author
- agent/last-modified-date
- agent/severity
- agent/references
- agent/description
- agent/first-publish-date
- agent/event
- agent/source
- agent/tags
- collector/nvd-index
- agent/software-canonical-lookup-request
- vendor/mattermost
- canonical/mattermost
- version/mattermost/5.2.0-rc1
- version/mattermost/5.2.0-rc2
- version/mattermost/5.2.0-rc3
- version/mattermost/5.2.0-rc4
- version/mattermost/5.2.0-rc5
- version/mattermost/5.2.0-rc6