CVE-2017-18888: Mattermost Server is vulnerable to SQL Injection when executing multiple POST requests

May 24, 2022 (updated December 5, 2025)

An issue was discovered in Mattermost Server before 4.3.0, 4.2.1, and 4.1.2. It allows SQL injection during the fetching of multiple posts.

References

github.com/advisories/GHSA-v2vm-hq26-5jv6
github.com/mattermost/mattermost
mattermost.com/security-updates
nvd.nist.gov/vuln/detail/CVE-2017-18888

Code Behaviors & Features

Detect and mitigate CVE-2017-18888 with GitLab Dependency Scanning

Secure your software supply chain by verifying that all open source dependencies used in your projects contain no disclosed vulnerabilities. Dependency Scanning using SBOM also detects vulnerabilities from proprietary advisories that this site does not include. Learn more about Dependency Scanning using SBOM →