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x/vulndb: potential Go vuln in github.com/mattermost/mattermost-server: GHSA-wj5w-qghh-gvqp #4317

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x/vulndb: potential Go vuln in github.com/mattermost/mattermost-server: GHSA-wj5w-qghh-gvqp#4317
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@GoVulnBot
GoVulnBot
opened on Jan 14, 2026

Advisory GHSA-wj5w-qghh-gvqp references a vulnerability in the following Go modules:

Module
github.com/mattermost/mattermost-server

Description:
An issue was discovered in Mattermost Server before 4.2.0, 4.1.1, and 4.0.5. E-mail templates can have a field in which HTML content is not neutralized.

References:

Cross references:

See doc/quickstart.md for instructions on how to triage this report.

id: GO-ID-PENDING
modules:
    - module: github.com/mattermost/mattermost-server
      versions:
        - fixed: 4.0.5+incompatible
        - introduced: 4.1.0+incompatible
        - fixed: 4.1.1+incompatible
        - introduced: 4.2.0-rc1+incompatible
        - fixed: 4.2.0+incompatible
      vulnerable_at: 4.2.0-rc4+incompatible
summary: Mattermost Server does not neutralize HTML content in an Email template field in github.com/mattermost/mattermost-server
cves:
    - CVE-2017-18892
ghsas:
    - GHSA-wj5w-qghh-gvqp
references:
    - advisory: https://github.com/advisories/GHSA-wj5w-qghh-gvqp
    - advisory: https://nvd.nist.gov/vuln/detail/CVE-2017-18892
    - fix: https://github.com/mattermost/mattermost/commit/4e05fbffed4d7ad75c0bb55d67d2c6f7cf9eaad6
    - fix: https://github.com/mattermost/mattermost/commit/d76946bdb545aba4088943fc523dabb459d22873
    - fix: https://github.com/mattermost/mattermost/commit/f5167f3ba645b829f4c28530e13be6c3db967255
    - web: https://mattermost.com/security-updates
source:
    id: GHSA-wj5w-qghh-gvqp
    created: 2026-01-14T22:01:26.470098666Z
review_status: UNREVIEWED

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