CVE-2018-21259 — Improper Input Validation in Server

CWE-20 — Improper Input Validation3 documents3 sources
Severity
5.3MEDIUMNVD
EPSS
0.4%
top 40.65%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
1
Mattermost Server
Timeline
PublishedJun 19
Latest updateMay 24

Description

An issue was discovered in Mattermost Server before 4.10.1, 4.9.4, and 4.8.2. It allows attackers to cause a denial of service (application hang) via a malformed link in a channel.

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:LExploitability: 3.9 | Impact: 1.4

Affected Packages1 packages

▶NVDmattermost/mattermost_server4.9.0 — 4.9.4+2

🔴Vulnerability Details

2
GHSA
GHSA-w5xj-4h4h-82v2: An issue was discovered in Mattermost Server before 4↗2022-05-24
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CVEList
CVE-2018-21259: An issue was discovered in Mattermost Server before 4↗2020-06-19
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CVE-2018-21259 — Improper Input Validation in Server | cvebase