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TI-2017-14036 Aliases CVE-2017-18888GHSA-v2vm-hq26-5jv6

An issue was discovered in Mattermost Server before 4.3.0, 4.2.1, and 4.1.2.

Priority MEDIUM 44CWE-89Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
SQL injection
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-89.

Summary

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.

Why it matters now

EPSS 0.01112 66th percentileScored 2026-11-07
Fix Fixed github.com/mattermost/mattermost-server (Go): 4.1.2, 4.2.1, 4.3.0

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
—github.com/mattermost/mattermost-server (Go)before 4.1.24.1.2Patch availableGHSA-v2vm-hq26-5jv6
—github.com/mattermost/mattermost-server (Go)4.2.0-rc1 to before 4.2.14.2.1Patch availableGHSA-v2vm-hq26-5jv6
—github.com/mattermost/mattermost-server (Go)4.3.0-rc1 to before 4.3.04.3.0Patch availableGHSA-v2vm-hq26-5jv6
  • — Vendor— Affected all versions Fixed in — No fix listed CNA
  • github.com/mattermost/mattermost-server (Go) Vendor— Affected before 4.1.2 Fixed in 4.1.2 Patch available GHSA-v2vm-hq26-5jv6
  • github.com/mattermost/mattermost-server (Go) Vendor— Affected 4.2.0-rc1 to before 4.2.1 Fixed in 4.2.1 Patch available GHSA-v2vm-hq26-5jv6
  • github.com/mattermost/mattermost-server (Go) Vendor— Affected 4.3.0-rc1 to before 4.3.0 Fixed in 4.3.0 Patch available GHSA-v2vm-hq26-5jv6

CPE configurations NVD · 5

CPEVersionsRoleVendor
cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*before 4.1.2; 4.2.0 to before 4.2.1VulnerableMattermost
cpe:2.3:a:mattermost:mattermost_server:4.3.0:rc1:*:*:*:*:*:*4.3.0 rc1VulnerableMattermost
cpe:2.3:a:mattermost:mattermost_server:4.3.0:rc2:*:*:*:*:*:*4.3.0 rc2VulnerableMattermost
cpe:2.3:a:mattermost:mattermost_server:4.3.0:rc3:*:*:*:*:*:*4.3.0 rc3VulnerableMattermost
cpe:2.3:a:mattermost:mattermost_server:4.3.0:rc4:*:*:*:*:*:*4.3.0 rc4VulnerableMattermost
  • cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:* Versions before 4.1.2; 4.2.0 to before 4.2.1 Vulnerable ·Mattermost
  • cpe:2.3:a:mattermost:mattermost_server:4.3.0:rc1:*:*:*:*:*:* Versions 4.3.0 rc1 Vulnerable ·Mattermost
  • cpe:2.3:a:mattermost:mattermost_server:4.3.0:rc2:*:*:*:*:*:* Versions 4.3.0 rc2 Vulnerable ·Mattermost
  • cpe:2.3:a:mattermost:mattermost_server:4.3.0:rc3:*:*:*:*:*:* Versions 4.3.0 rc3 Vulnerable ·Mattermost
  • cpe:2.3:a:mattermost:mattermost_server:4.3.0:rc4:*:*:*:*:*:* Versions 4.3.0 rc4 Vulnerable ·Mattermost

Remediation

  • Fix · GHSA-v2vm-hq26-5jv6 github.com/mattermost/mattermost-server (Go) Fixed in 4.1.2 Advisory →
  • Fix · GHSA-v2vm-hq26-5jv6 github.com/mattermost/mattermost-server (Go) Fixed in 4.2.1 Advisory →
  • Fix · GHSA-v2vm-hq26-5jv6 github.com/mattermost/mattermost-server (Go) Fixed in 4.3.0 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2017-18888
  2. 2026-10-03 Alias added: GHSA-v2vm-hq26-5jv6

References

Advisory 2

Other 2

  • TI-2025-18933 Arbitrary file read in Mattermost Boards via import & export board archive CVSS 3.1CRITICAL 9.9
  • TI-2025-04465 Path Traversal Leading to RCE by Any Authenticated Mattermost User CVSS 3.1CRITICAL 9.9
  • TI-2017-14068 An issue was discovered in Mattermost Server before 3.6.2. CVSS 3.1CRITICAL 9.8
  • TI-2017-14060 An issue was discovered in Mattermost Server before 3.8.2, 3.7.5, and 3.6.7. CVSS 3.1CRITICAL 9.8
  • TI-2017-14048 An issue was discovered in Mattermost Server before 4.1.0, 4.0.4, and 3.10.3. CVSS 3.1CRITICAL 9.8
  • TI-2025-14360 Arbitrary file read via block duplication in Mattermost Boards CVSS 3.1CRITICAL 9.9
See all 505 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences