In Apache Struts 2.0.0 through 2.3.33 and 2.5 through 2.5.10.1, using an unintentional expression in a Freemarker tag instead of string literals can lead to a RCE attack.
[
{
"product": "Apache Struts",
"vendor": "Apache Software Foundation",
"versions": [
{
"status": "affected",
"version": "2.0.0 - 2.3.33"
},
{
"status": "affected",
"version": "2.5 - 2.5.10.1"
}
]
}
]