CVE-2019-20870

MEDIUM

Mattermost Server < 5.10.0 - Improper Input Validation via Edited Flag Bypass

Title source: llm
STIX 2.1

Description

An issue was discovered in Mattermost Server before 5.10.0. An attacker can bypass the intended appearance of the Edited flag after changing a post's file ID.

References (1)

Core 1
Core References
Vendor Advisory x_refsource_confirm
https://mattermost.com/security-updates/

Scores

CVSS v3 4.3
EPSS 0.0023
EPSS Percentile 45.8%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N

Details

CWE
CWE-20
Status published
Products (1)
mattermost/mattermost_server < 5.10.0
Published Jun 19, 2020
Tracked Since Feb 18, 2026