PT-2020-8428 · Mattermost · Mattermost Server

Published 2020-06-19 · Updated 2020-06-26 · CVE-2017-18882

Positive Technologies (AI Summary)

CVSS v3.1

6.1

Medium

Base 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 in Mattermost Server where XSS can occur via OpenGraph data.

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

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2017-18882

Affected Products

Mattermost Server

References · 5

• https://mattermost.com/security-updates · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2017-18882 · Security Note
• https://osv.dev/vulnerability/CVE-2017-18882 · Vendor Advisory
• https://t.me/cibsecurity/12925 · Telegram Post
• https://t.me/cvenotify/4517 · Telegram Post