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  5. CVE-2017-18908

CVE-2017-18908: Mattermost Server password reset email requests can be sent to attacker-provided email addresses

May 24, 2022 (updated February 6, 2026)

An issue was discovered in Mattermost Server before 4.0.0, 3.10.1, and 3.9.1. A password reset request was sometimes sent to an attacker-provided e-mail address.

References

  • github.com/advisories/GHSA-34cx-hvm4-vx7j
  • github.com/mattermost/mattermost
  • github.com/mattermost/mattermost/commit/59139390ae927af2e879dbacfe4dadb1adac97c0
  • github.com/mattermost/mattermost/commit/d3bc11be3acd3a73e6358d958b91427e2584ea71
  • github.com/mattermost/mattermost/commit/e5065cf7575ee05c040945a4b00b7fd90bf39b83
  • mattermost.com/security-updates
  • nvd.nist.gov/vuln/detail/CVE-2017-18908

Code Behaviors & Features

Detect and mitigate CVE-2017-18908 with GitLab Dependency Scanning

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Affected versions

All versions before 3.9.1-rc1, all versions starting from 3.10.0 before 3.10.1

Fixed versions

  • 3.9.1-rc1
  • 3.10.1

Solution

Upgrade to versions 3.10.1, 3.9.1-rc1 or above.

Impact 9.8 CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Learn more about CVSS

Weakness

  • CWE-287: Improper Authentication
  • CWE-640: Weak Password Recovery Mechanism for Forgotten Password

Source file

go/github.com/mattermost/mattermost-server/CVE-2017-18908.yml

Spotted a mistake? Edit the file on GitLab.

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