PT-2020-8423 · Mattermost · Mattermost Server
CVE-2017-18877
·
Published
2020-06-19
·
Updated
2026-07-30
CVSS v3.1
6.1
Medium
| Vector | AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N |
Name of the Vulnerable Software and Affected Versions:
Mattermost Server versions prior to 4.3.0
Mattermost Server version 4.2.1
Mattermost Server version 4.1.2
Description:
An issue was discovered that allows XSS attacks to occur against an OAuth 2.0 allow/deny page.
Recommendations:
For versions prior to 4.3.0, update to version 4.3.0 or later.
For version 4.2.1, update to version 4.3.0 or later.
For version 4.1.2, update to version 4.3.0 or later.
Fix
XSS
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Weakness Enumeration
Related Identifiers
Affected Products
Mattermost Server