CVE-2023-1777

MEDIUM

Mattermost - Info Disclosure

Title source: llm

Description

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.

References (1)

[Vendor Advisory] https://mattermost.com/security-updates/

Scores

CVSS v3 6.5

EPSS 0.0031

EPSS Percentile 53.7%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Classification

CWE

CWE-200 CWE-668

Status published

Affected Products (5)

mattermost/mattermost_server < 7.1.6

mattermost/mattermost_server

mattermost/mattermost-server < 7.1.6Go

mattermost/mattermost-server < 7.8.1Go

Timeline

Published Mar 31, 2023

Tracked Since Feb 18, 2026