CVE-2017-18882: An issue was discovered in Mattermost Server before 4.3.0, 4.2.1, and 4.1.2

Medium severity · published Jun 19, 2020

CVE-2017-18882

An issue was discovered in Mattermost Server before 4.3.0, 4.2.1, and 4.1.2

6.1

CVSS

0.7%

EPSS

On KEV

Description

An issue was discovered in Mattermost Server before 4.3.0, 4.2.1, and 4.1.2. XSS can occur via OpenGraph data.

CVSS vector

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

Attack vector

Network

Complexity

Low

Privileges

None

User interaction

Required

Confidentiality

Low

Integrity

Low

Availability

None

Scope

Changed

Exploitation

Is it being used?

Exploit prediction (EPSS)0.7% · higher than 52% of CVEs

Exploited in the wildNo evidence yet

CISA KEVNot listed

Ransomware campaign useNot known

Affected products

Which versions

Mattermost Server · Mattermost

before 4.1.2; 4.2.0 before 4.2.1; 4.3.0; 4.3.0; 4.3.0; 4.3.0 · source: NVD

Affected product

Mattermost Server

Mattermost

All Mattermost Server CVEs

References

NVD

https://nvd.nist.gov/vuln/detail/CVE-2017-18882

CVE.org

https://www.cve.org/CVERecord?id=CVE-2017-18882

Vendor Advisory

https://mattermost.com/security-updates/