KEVIntel
PRO Back to KEVs
10.0
CVSS
Critical

CVE-2026-34234

PUBLISHED

CtrlPanel: Unauthenticated RCE using installer script

Exploited in the wild PoC available Remote Low complexity No user interaction
Vendor
Ctrlpanel-gg
Product
panel
Published
May 19, 2026
EPSS
0.1% · 26% pctl

Automate this intelligence with the Pro API

Everything on this page — CVSS, EPSS, exploit status, PoCs, scanner integrations, mentions, tags, and immediate honeypot data — is available programmatically for VM, SOC, and CTI workflows.

Learn about Pro

Description

CtrlPanel is open-source billing software for hosting providers. In versions 1.1.1 and prior, the web-based installer (public/installer/index.php) is vulnerable to unauthenticated Remote Code Execution (RCE) because it performs the install.lock check only after including and executing form handler files, leaving installer endpoints reachable on already-installed instances. The handlers also pass unsanitized user input directly into shell commands, allowing an attacker to submit crafted requests that execute arbitrary commands on the server. The vulnerability stems from two combined weaknesses: (1) premature form handler execution before the lock file gate, and (2) unsafe use of user input in shell command construction. This issue is reported to be actively exploited in the wild. The issue has been fixed in version 1.2.0.

php

Weaknesses (CWE)

  • CWE-284

    Improper Access Control

  • CWE-78

    Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')

CVSS scores

CVSS v3.1 10.0 Critical

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Exploitation status

Exploited in the wild

Recorded 2026-06-01 13:29:18 UTC · CVE

Proof of concept available

Recorded 2026-06-04 13:54:37 UTC · GitHub

References

Known exploited vulnerability sources

Catalogues that list this CVE as a known exploited vulnerability.

Source Added
CVE First 2026-06-01 13:29 UTC

Potential proof of concepts

These PoCs are unverified and could contain malware. Use at your own risk.

rootdirective-sec/CVE-2026-34234-Lab

github · Created 2026-06-04 13:54:37 UTC · 0 stars

Timeline

  • CVE ID Reserved

  • CVE Published to Public

  • Added to KEVIntel

  • Proof of Concept Exploit Available