CVE-2021-47747CWE-78

meterN 1.2.3 Authenticated Remote Code Execution via Admin Scripts

High · published December 31, 2025

CVSS v4.0
8.6
EPSS
1%
Percentile
53.0
In the wild
Unconfirmed
What it is

⚡ An authenticated attacker can unleash chaos through meterN 1.2.3! With just a couple of sneaky POST requests, they can run any command they want with admin privileges. 🔥 Think of it like a restaurant kitchen where the chef has a secret passcode to access the pantry. If a rogue diner figures out that code, they can not only take what they want but also change the entire menu without the owner knowing! With this vulnerability, a misbehaving attacker could execute arbitrary commands on the server, leading to anything from data theft to full system compromise. It's a high-stakes game of digital whack-a-mole where every command could spell disaster for your setup!

Put simply

Think of it like a restaurant kitchen where the chef has a secret passcode to access the pantry. If a rogue diner figures out that code, they can not only take what they want but also change the entire menu without the owner knowing! This remote code execution (RCE) vulnerability occurs in the admin_meter2.php and admin_indicator2.php scripts, allowing attackers to exploit the 'COMMANDx' and 'LIVECOMMANDx' POST parameters to execute commands as if they were the system administrator.

What to do

With this vulnerability, a misbehaving attacker could execute arbitrary commands on the server, leading to anything from data theft to full system compromise. It's a high-stakes game of digital whack-a-mole where every command could spell disaster for your setup! To protect your system, patch meterN to version 1.2.4 immediately! Additionally, review access controls and ensure administrative scripts are secured against unauthorized access. Regular audits can help catch similar issues early! You've got this! Stay vigilant and follow these steps to keep your systems secure and sound. 🛡️

The record
Technical detail
CVSS v4.0
8.6 · HIGH
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
EPSS
0.00710 · 53.0th percentile
Weakness
CWE-78 · Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Published
2025-12-31T18:39Z
EPSS history
Timeline
  • 31 DEC 18:39Z
    meterN 1.2.3 Authenticated Remote Code Execution via Admin Scripts
    cvelistv5