A stored cross site scripting (XSS) vulnerability in phplist 3.5.4 and below allows attackers to execute arbitrary web scripts or HTML via a crafted payload in the "rule1" parameter under the "Bounce Rules" module.
{
"cpes": [
"cpe:2.3:a:phplist:phplist:*:*:*:*:*:*:*:*"
],
"severity": "Medium"
}