cve.bz

CVE-2017-18885

9.8 criticalEPSS 1.2%

An issue was discovered in Mattermost Server before 4.3.0, 4.2.1, and 4.1.2. It allows attackers to gain privileges by accessing unintended API endpoints on a user's behalf.

Severity

CVSS 3.1

9.8 critical
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
1.2% chance of exploitation in the next 30 days; higher than 67% of CVEs (scores of 2026-10-31)
CWE
CWE-269
Published
Modified
Record from
the NVD, synced

Affected

Packages (OSV)

AdvisoryEcosystemPackageAffectedFixed in
GHSA-g78f-6xq7-rrhqGogithub.com/mattermost/mattermost-server<4.1.24.1.2
GHSA-g78f-6xq7-rrhqGogithub.com/mattermost/mattermost-server>=4.2.0-rc1 <4.2.14.2.1
GHSA-g78f-6xq7-rrhqGogithub.com/mattermost/mattermost-server>=4.3.0-rc1 <4.3.04.3.0
GO-2025-4200Gogithub.com/mattermost/mattermost-server<4.1.2+incompatible
>=4.2.0-rc1+incompatible <4.2.1+incompatible
>=4.3.0-rc1+incompatible <4.3.0+incompatible		4.1.2+incompatible, 4.2.1+incompatible, 4.3.0+incompatible

References

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