CVE-2017-18905

MEDIUM
5.3
CVSS Score
Published: June 19, 2020 at 07:17 PM UTC
Updated: June 17, 2026 at 01:13 AM UTC
1 product affected across 1 vendorMattermost Server

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Severity
MEDIUM5.3
Exploit prediction
EPSS 0.8%

Description

An issue was discovered in Mattermost Server before 4.0.0, 3.10.2, and 3.9.2, when used as an OAuth 2.0 service provider, Session invalidation was mishandled.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 3.9.23.10.0 ≤ v < 3.10.2
Affected range stops below 3.10.2, so it looks safe — our inference, not a vendor statement
Affected range stops below 3.9.2, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

x_refsource_CONFIRMVendor Advisory
https://mattermost.com/security-updates/

CVSS

Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
LOW
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-613

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