CVE-2017-18900
Critical
Mattermost Server is vulnerable CSV Injection in github.com/mattermost/mattermost-server
Mattermost Server is vulnerable CSV Injection in github.com/mattermost/mattermost-server
Exploit probability
1.3%
Published
January 13, 2026
Required by
Not available
Last source change
March 3, 2026
02 / AFFECTED SOFTWARE
Affected packages
8 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
Open Source Vulnerabilities
CVE-2017-18900
View original source
An issue was discovered in Mattermost Server before 4.1.0, 4.0.4, and 3.10.3. It allows CSV injection via a compliance report.
Open Source Vulnerabilities
GO-2026-4303
View original source
Mattermost Server is vulnerable CSV Injection in github.com/mattermost/mattermost-server
Open Source Vulnerabilities
GHSA-8q4v-35v6-g8wr
View original source
An issue was discovered in Mattermost Server before 4.0.4 and 3.10.3. It allows CSV injection via a compliance report.
05 / REFERENCES
Further evidence
- https://mattermost.com/security-updates/
- https://github.com/advisories/GHSA-8q4v-35v6-g8wr
- https://github.com/mattermost/mattermost/commit/eaa598aba901a20c65c52dd1e1b82e7e1dffb962
- https://mattermost.com/security-updates
- https://nvd.nist.gov/vuln/detail/CVE-2017-18900
- https://github.com/mattermost/mattermost