CVE-2023-1777 – github.com/mattermost/mattermost-server

Package

Manager: go
Name: github.com/mattermost/mattermost-server
Vulnerable Version: =7.8.0 || >=7.8.0 <7.8.1 || >=7.7.0 <7.7.2 || >=7.1.0 <7.1.6 || >=1.4.1-0.20211025164829-f7a8147b825c <1.4.1-0.20230301145909-10be118d99a5

Severity

Level: Medium

CVSS v3.1: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

CVSS v4.0: CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N

EPSS: 0.00176 pctl0.39468

Details

Mattermost vulnerable to information disclosure Mattermost allows an attacker to request a preview of an existing message when creating a new message via the createPost API call, disclosing the contents of the linked message.

Metadata

Created: 2023-03-31T12:30:16Z
Modified: 2025-07-25T15:16:21Z
Source: https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2023/03/GHSA-3wq5-3f56-v5xc/GHSA-3wq5-3f56-v5xc.json
CWE IDs: ["CWE-668"]
Alternative ID: GHSA-3wq5-3f56-v5xc
Finding: F017
Auto approve: 1