CVE-2017-18903 : An issue was discovered in Mattermost Server before 4.0.0, 3.10.2, and 3.9.2. CS

An issue was discovered in Mattermost Server before 4.0.0, 3.10.2, and 3.9.2. CSRF can occur if CORS is enabled.

Published 2020-06-19 19:15:12

Updated 2020-06-25 13:47:09

Source MITRE

View at NVD, CVE.org

Vulnerability category: Cross-site request forgery (CSRF)

Products affected by CVE-2017-18903

Mattermost » Mattermost Server
Versions from including (>=) 3.10.0 and before (<) 3.10.2
cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*
Matching versions
Mattermost » Mattermost Server
Versions before (<) 3.9.2
cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*
Matching versions

EPSS FAQ

0.07%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 30 %

Percentile, the proportion of vulnerabilities that are scored at or less

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
5.1	MEDIUM	AV:N/AC:H/Au:N/C:P/I:P/A:P	4.9	6.4	NIST
Access Vector: Network Access Complexity: High Authentication: None Confidentiality Impact: Partial Integrity Impact: Partial Availability Impact: Partial
8.8	HIGH	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H	2.8	5.9	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: Required Scope: Unchanged Confidentiality: High Integrity: High Availability: High

CWE-352 Cross-Site Request Forgery (CSRF)

The web application does not, or can not, sufficiently verify whether a well-formed, valid, consistent request was intentionally provided by the user who submitted the request.

Assigned by: nvd@nist.gov (Primary)

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