The mail message display page in SquirrelMail through 1.4.22 has XSS via the formaction attribute.
{ "availability": "No subscription required", "binaries": [ { "binary_version": "2:1.4.23~svn20120406-2+deb8u3build0.14.04.1", "binary_name": "squirrelmail" } ] }
"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2018/UBUNTU-CVE-2018-14954.json"
{ "availability": "No subscription required", "binaries": [ { "binary_version": "2:1.4.23~svn20120406-2+deb8u3ubuntu0.16.04.1", "binary_name": "squirrelmail" } ] }