CVE-2019-20866 — HTTP Request Smuggling in Server
Severity
5.3MEDIUMNVD
EPSS
0.2%
top 57.23%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
Timeline
PublishedJun 19
Latest updateMay 24
Description
An issue was discovered in Mattermost Server before 5.12.0. Use of a Proxy HTTP header, rather than the source address in an IP packet header, for obtaining IP address information was mishandled.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:NExploitability: 3.9 | Impact: 1.4