---
id: "CVE-2026-77880"
kind: "vulnerability"
aliases: ["CVE-2026-77880"]
title: "Control Web Panel: password change route lets attackers run root commands"
severity: "high"
cvss: 8.6
epss: null
exploited: false
status: "open"
category: "infrastructure"
products: []
ecosystems: []
tags: ["control-web-panel", "hosting", "infrastructure", "linux", "self-hosted"]
not_affected_if: ["cwp-not-installed", "webpanel-1.16-or-later"]
published_at: "2026-11-02T16:17:43+00:00"
first_seen_at: "2026-11-02T16:24:05+00:00"
updated_at: "2026-11-02T16:26:18+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-77880", "first_seen_at": "2026-11-02T16:24:05+00:00"}]
---

# Control Web Panel: password change route lets attackers run root commands

Control Web Panel (CWP), a web hosting control panel, passes the POST 'user' parameter of its loopback password change route /newpass/ unescaped into a shell command. An attacker who can reach that route can run arbitrary operating system commands as root.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- Check the installed CWP version: `webpanel_version` below `1.16` means it is affected
- Confirm whether the /newpass/ route is reachable from outside the server (unknown whether a source confirms the exact exposure path)

## Fix

- Move CWP to `webpanel_version` 1.16 or later

## Timeline

- 2026-11-02T16:24:05+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-77880

## Documents

- [advisory] Third-party advisory: www.vulncheck.com https://www.vulncheck.com/advisories/control-web-panel-cwp-os-command-injection-via-newpass

## From the sources

Control Web Panel (CWP) before webpanel_version 1.16 contains an OS command injection vulnerability in the loopback API password change route /newpass/, which runs as root. An attacker can inject arbitrary OS commands by manipulating the POST 'user' parameter that is passed unescaped into a shell command, achieving remote code execution with root privileges.

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_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_