cve.bz

CVE-2017-18876

4.9 mediumEPSS 0.9%

An issue was discovered in Mattermost Server before 4.3.0, 4.2.1, and 4.1.2 when local storage for files is used. A System Admin can test for the existence of an arbitrary file.

Severity

CVSS 3.1

4.9 medium
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:N/A:N
EPSS
0.9% chance of exploitation in the next 30 days; higher than 58% of CVEs (scores of 2026-10-31)
CWE
CWE-732
Published
Modified
Record from
the NVD, synced

Affected

Packages (OSV)

AdvisoryEcosystemPackageAffectedFixed in
GHSA-hjqh-j6rj-gh8qGogithub.com/mattermost/mattermost-server<4.1.2-0.20171004201910-6be8113eb60c4.1.2-0.20171004201910-6be8113eb60c
GHSA-hjqh-j6rj-gh8qGogithub.com/mattermost/mattermost-server>=4.2.0-rc1.0.20171004154238-fadd9514f6e7 <4.2.1-0.20171004194140-6d3cb2ce07fc4.2.1-0.20171004194140-6d3cb2ce07fc
GHSA-hjqh-j6rj-gh8qGogithub.com/mattermost/mattermost-server>=4.3.0-rc1 <4.3.04.3.0
GO-2025-4187Gogithub.com/mattermost/mattermost-server>=4.3.0-rc1+incompatible <4.3.0+incompatible4.3.0+incompatible

References

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