Squid before 4.9, when certain web browsers are used, mishandles HTML in the host (aka hostname) parameter to cachemgr.cgi.
https://github.com/squid-cache/squid/pull/505
https://github.com/squid-cache/squid/pull/504
http://lists.opensuse.org/opensuse-security-announce/2020-05/msg00018.html
https://usn.ubuntu.com/4356-1/
https://lists.debian.org/debian-lts-announce/2020/07/msg00009.html
Source: MITRE
Published: 2020-03-20
Updated: 2023-01-24
Type: CWE-74
Base Score: 4.3
Vector: AV:N/AC:M/Au:N/C:N/I:P/A:N
Impact Score: 2.9
Exploitability Score: 8.6
Severity: MEDIUM
Base Score: 6.1
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Impact Score: 2.7
Exploitability Score: 2.8
Severity: MEDIUM