Security readout for executives and security teams
Plain-English summary
meterN 1.2.3 has a serious flaw that lets a logged-in attacker run operating-system commands through administrative scripts. If an attacker obtains or already has access to meterN, they could take over the application host. Public exploit material exists, but the provided sources do not show confirmed active exploitation.
Executive priority
Treat as high priority if meterN 1.2.3 is present. The issue can lead to full host compromise after authentication, and public exploit information exists. Focus first on internet-reachable or broadly accessible admin interfaces.
Technical view
CVE-2021-47747 is authenticated command injection in meterN 1.2.3 admin_meter2.php and admin_indicator2.php. The CVE describes arbitrary system command execution via COMMANDx and LIVECOMMANDx POST parameters. CVSS 3.1 is 8.8: network exploitable, low complexity, low privileges required, no user interaction, high impact to confidentiality, integrity, and availability.
Likely exposure
Exposure is limited to organizations running meterN 1.2.3. Risk increases if the meterN administrative interface is reachable over a network by broad internal users, remote users, or compromised credentials.
Exploitation context
The vulnerability requires authentication, but no user interaction. ExploitDB is listed as an exploit reference, indicating public exploit information exists. The source bundle states CISA KEV is false, and no cited source confirms active exploitation.
Researcher notes
Evidence supports CWE-78 authenticated RCE in meterN 1.2.3. The affected scripts and parameters are named in public advisories. Sources do not provide a confirmed vendor patch, fixed version, or active exploitation evidence, so validation should avoid assuming remediation status.
Mitigation direction
- Identify and prioritize any meterN 1.2.3 deployments.
- Check vendor or maintainer guidance for fixed versions or official remediation.
- Restrict meterN administrative access to trusted administrators and networks.
- Disable or remove meterN where it is no longer required.
- Monitor administrative activity until remediation is confirmed.
Validation and detection
- Inventory meterN hosts and confirm whether version 1.2.3 is installed.
- Verify who can authenticate to the meterN administrative interface.
- Review logs for suspicious access to the affected admin scripts.
- Look for unusual process execution from the web application context.
- Confirm remediation against vendor or maintainer guidance when available.
Public sources used
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
These mappings and lookup hints may be relevant to the vulnerability behavior, CWE, affected product, or exposure path. Glexia-inferred context is not an official MITRE, ATT&CK, CWE, or CVE Program mapping.
ATT&CK lookup starting points
Use these exact CWE pages and searches to review the Glexia ATT&CK library from this CVE's weakness and description context.
CWE-78: Command execution behavior lookup
Command injection weaknesses can lead defenders to review execution techniques and command interpreter telemetry. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupExecution behavior lookup
The CVE wording references code or command execution, so execution technique review may help defensive triage. This is a Glexia inferred lookup path, not an official MITRE, ATT&CK, or CVE Program mapping.
Open ATT&CK lookupCVE-2021-47747 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- High
- CVSS
- 8.8 (3.1)
- Known Exploited
- No
- Published
Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS vector scores
1 official scoreWe collect every scored CVSS vector available in the official CNA and ADP containers. When more than one version is present, the table keeps the source vectors side by side instead of collapsing them into the highest score.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H2.85.9Primary CVE scoreVulnerability scoring details
Base CVSS 3.1 score
8.8HighVector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Source materials
- CVE List V5 sourceCVE List V5
- ExploitDB-50596CVE reference · exploit
- Archived Vendor HomepageCVE reference · product
- Zero Science Lab Disclosure (ZSL-2021-5690)CVE reference · third-party-advisory
- VulnCheck Advisory: meterN 1.2.3 Authenticated Remote Code Execution via Admin ScriptsCVE reference · third-party-advisory
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection') represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.