CVE-2021-37863 — Improper Input Validation in Mattermost

CWE-20 — Improper Input Validation3 documents3 sources
Severity
5.7MEDIUMNVD
CNA3.5
EPSS
0.6%
top 31.28%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
2
MattermostMattermost Server
Timeline
PublishedDec 17
Latest updateDec 18

Description

Mattermost 6.0 and earlier fails to sufficiently validate parameters during post creation, which allows authenticated attackers to cause a client-side crash of the web application via a maliciously crafted post.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:HExploitability: 2.1 | Impact: 3.6

Affected Packages2 packages

▶CVEListV5mattermost/mattermostunspecified — 6.0

🔴Vulnerability Details

2
GHSA
GHSA-7523-wx28-g6xf: Mattermost 6↗2021-12-18
▶
CVEList
CVE-2021-37863: Mattermost 6↗2021-12-17
▶
CVE-2021-37863 — Improper Input Validation | cvebase