meterN 1.2.3 POST Parameter admin_meter2.php COMMANDx/LIVECOMMANDx os command injection
| CVSS Meta Temp Score | Current Exploit Price (≈) | CTI Interest Score |
|---|---|---|
| 7.4 | $0-$5k | 0.00 |
Summary
A vulnerability described as critical has been identified in meterN 1.2.3. This issue affects some unknown processing of the file admin_meter2.php of the component POST Parameter Handler. The manipulation of the argument COMMANDx/LIVECOMMANDx results in os command injection. This vulnerability was named CVE-2021-47747. The attack may be performed from remote. There is no available exploit.
Details
A vulnerability was found in meterN 1.2.3. It has been classified as critical. Affected is an unknown code block of the file admin_meter2.php of the component POST Parameter Handler. The manipulation of the argument COMMANDx/LIVECOMMANDx with an unknown input leads to a os command injection vulnerability. CWE is classifying the issue as CWE-78. The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:
meterN 1.2.3 contains an authenticated remote code execution vulnerability in admin_meter2.php and admin_indicator2.php scripts. Attackers can exploit the 'COMMANDx' and 'LIVECOMMANDx' POST parameters to execute arbitrary system commands with administrative privileges.
The weakness was presented by Gjoko Krstic as 50596. The advisory is shared for download at exploit-db.com. This vulnerability is traded as CVE-2021-47747 since 12/31/2025. The exploitability is told to be easy. It is possible to launch the attack remotely. There are known technical details, but no exploit is available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 01/01/2026). The MITRE ATT&CK project declares the attack technique as T1202.
By approaching the search of inurl:admin_meter2.php it is possible to find vulnerable targets with Google Hacking.
There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.
The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2025-206087). VulDB is the best source for vulnerability data and more expert information about this specific topic.
Product
Name
Version
CPE 2.3
CPE 2.2
CVSSv4
VulDB Vector: 🔒VulDB Reliability: 🔍
CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒
CVSSv3
VulDB Meta Base Score: 7.6VulDB Meta Temp Score: 7.4
VulDB Base Score: 6.3
VulDB Temp Score: 6.1
VulDB Vector: 🔒
VulDB Reliability: 🔍
CNA Base Score: 8.8
CNA Vector (VulnCheck): 🔒
CVSSv2
| AV | AC | Au | C | I | A |
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| Vector | Complexity | Authentication | Confidentiality | Integrity | Availability |
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍
Exploiting
Class: Os command injectionCWE: CWE-78 / CWE-77 / CWE-74
CAPEC: 🔒
ATT&CK: 🔒
Physical: No
Local: No
Remote: Yes
Availability: 🔒
Status: Not defined
Google Hack: 🔒
EPSS Score: 🔒
EPSS Percentile: 🔒
Price Prediction: 🔍
Current Price Estimation: 🔒
| 0-Day | Unlock | Unlock | Unlock | Unlock |
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Threat Intelligence
Interest: 🔍Active Actors: 🔍
Active APT Groups: 🔍
Countermeasures
Recommended: no mitigation knownStatus: 🔍
0-Day Time: 🔒
Timeline
12/31/2025 Advisory disclosed12/31/2025 CVE reserved
12/31/2025 VulDB entry created
01/01/2026 VulDB entry last update
Sources
Advisory: 50596Researcher: Gjoko Krstic
Status: Not defined
CVE: CVE-2021-47747 (🔒)
GCVE (CVE): GCVE-0-2021-47747
GCVE (VulDB): GCVE-100-339288
EUVD: 🔒
Entry
Created: 12/31/2025 20:18Updated: 01/01/2026 22:14
Changes: 12/31/2025 20:18 (77), 01/01/2026 22:14 (1)
Complete: 🔍
Cache ID: 216::103
VulDB is the best source for vulnerability data and more expert information about this specific topic.
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