PT-2021-21890 · Mattermost · Mattermost

Published 2021-08-05 · Updated 2021-08-12 · CVE-2021-37859

Positive Technologies (AI Summary)

CVSS v3.1

7.1

High

Base vector

AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:L

Name of the Vulnerable Software and Affected Versions: Mattermost (affected versions not specified)

Description: A reflected cross-site scripting issue affects OAuth-enabled instances. This could potentially allow for malicious script execution. No information is provided about the estimated number of affected devices or real-world incidents.

Recommendations: At the moment, there is no information about a newer version that contains a fix for this vulnerability.

XSS

Weakness Enumeration

CWE-79

Related Identifiers

CVE-2021-37859

Affected Products

Mattermost

References · 4

• https://mattermost.com/security-updates · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2021-37859 · Security Note
• https://osv.dev/vulnerability/CVE-2021-37859 · Vendor Advisory
• https://t.me/cvenotify/19236 · Telegram Post