cve.bz

CVE-2017-18915

9.8 criticalEPSS 1.2%

An issue was discovered in Mattermost Server before 3.8.2, 3.7.5, and 3.6.7. After a restart of a server, an attacker might suddenly gain API Endpoint access.

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-276
Published
Modified
Record from
the NVD, synced

Affected

Packages (OSV)

AdvisoryEcosystemPackageAffectedFixed in
GHSA-hxxj-8phw-74vwGogithub.com/mattermost/mattermost-server<3.6.7-0.20170420152529-0968e4079e0a3.6.7-0.20170420152529-0968e4079e0a
GHSA-hxxj-8phw-74vwGogithub.com/mattermost/mattermost-server>=3.7.0 <3.7.53.7.5
GHSA-hxxj-8phw-74vwGogithub.com/mattermost/mattermost-server>=3.8.0 <3.8.23.8.2
GO-2026-4462Gogithub.com/mattermost/mattermost-server>=3.7.0+incompatible <3.7.5+incompatible
>=3.8.0+incompatible <3.8.2+incompatible
3.7.5+incompatible, 3.8.2+incompatible

References

Check your stackJSON