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Case File

CVE-2024-39777

HIGH · CVSS 8.7 EPSS 0.36%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2024-08-01 · Last synced 2026-08-04

CyberRota Analysis

This is a high severity vulnerability with a CVSS score of 8.7. It may be remotely exploitable.

CVE
CVE-2024-39777
Severity
HIGH
CVSS
8.7
EPSS
0.36%

Original NVD Description

Mattermost versions 9.9.x <= 9.9.0, 9.5.x <= 9.5.6, 9.7.x <= 9.7.5 and 9.8.x <= 9.8.1 fail to disallow unsolicited invites to expose access to local channels, when shared channels are enabled, which allows a malicious remote to send an invite with the ID of an existing local channel, and that local channel will then become shared without the consent of the local admin.

Related CVEs

Other vulnerabilities affecting the same vendor(s)