Cyber Resilience

CVE-2023-2647

Command Injection in Weaver E-Office 9.5

Public PoCCommand Injection
Published
11 May 2023
Modified
21 November 2024
CVSS Score v3.1 6.3
Click a component to see what it means
Raw vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
EPSS Score 0.070 94th percentile
Risk Priority 59 floored blend · peak EPSS

Summary

CVE-2023-2647 is a medium-severity Command Injection (CWE-77) vulnerability in Weaver E-Office. Its CVSS base score is 6.3 (Medium).

Operationally, exploitation aligns with the MITRE ATT&CK technique Command and Scripting Interpreter (T1059); ranked in the top 6% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.

Deeper analysis AI-assisted summary

Synthesised by an AI model from the NVD description and linked references — a reading aid, not an authoritative source.

CVE-2023-2647 is a command-injection vulnerability (CWE-77) affecting the file-upload handler in Weaver E-Office version 9.5. The flaw resides in an unspecified function inside /webroot/inc/utility_all.php; crafted input supplied to this component is executed as operating-system commands. The issue carries a CVSS 3.1 base score of 6.3 with network attack vector, low complexity, and low-privileged authentication requirements.

An authenticated remote attacker can send a malicious request to the affected endpoint and obtain limited read, write, and execution capabilities on the underlying host. Public proof-of-concept code demonstrating the injection has been published, confirming that exploitation does not require user interaction or special network positioning.

Vendor contact prior to disclosure received no response, and the referenced advisories contain no mitigation guidance or patch information. The associated EPSS score has remained flat at 0.1369 since publication, indicating no measurable increase in observed exploitation activity.

OWASP Top 10 for Web (2025)

A05:2025 Injection

EU & UK References

Vulnerability Data

A vulnerability was found in Weaver E-Office 9.5 and classified as critical. Affected by this issue is some unknown functionality of the file /webroot/inc/utility_all.php of the component File Upload Handler. The manipulation leads to command injection. The attack may be…

more

launched remotely. The exploit has been disclosed to the public and may be used. The identifier of this vulnerability is VDB-228776. NOTE: The vendor was contacted early about this disclosure but did not respond in any way.

CWE(s)
CWE-77

Related Threats

MITRE ATT&CK Enterprise Techniques

T1059 Command and Scripting Interpreter Execution
Adversaries may abuse command and script interpreters to execute commands, scripts, or binaries.
attack.mitre.org →
T1190 Exploit Public-Facing Application Initial Access
Adversaries may attempt to exploit a weakness in an Internet-facing host or system to initially access a network.
attack.mitre.org →
T1059.001 PowerShell Execution
Adversaries may abuse PowerShell commands and scripts for execution.
attack.mitre.org →
T1059.003 Windows Command Shell Execution
Adversaries may abuse the Windows command shell for execution.
attack.mitre.org →
T1059.004 Unix Shell Execution
Adversaries may abuse Unix shell commands and scripts for execution.
attack.mitre.org →
T1059.008 Network Device CLI Execution
Adversaries may abuse scripting or built-in command line interpreters (CLI) on network devices to execute malicious command and payloads.
attack.mitre.org →
Derived from this CVE’s CWE(s) via the direct CWE→ATT&CK cross-walk.

CVEs Like This One

CVE-2023-2648Same product: Weaver E-Office
CVE-2023-34798Same product: Weaver E-Office
CVE-2023-2765Same product: Weaver E-Office
CVE-2024-3227Same product: Weaver E-Office
CVE-2023-2766Same product: Weaver E-Office
CVE-2024-53672Shared CWE-77
CVE-2024-38228Shared CWE-77
CVE-2023-1389Shared CWE-77
CVE-2023-46409Shared CWE-77
CVE-2023-37469Shared CWE-77

Affected Assets

weaver
e-office
9.5

Mitigating Controls

Control response

Prevent
Stop it (NIST 800-53)

—

Detect
Catch it (NIST detect / respond)

—

Harden
Shrink the surface (DISA STIG)

—

Validate
Prove the fix (OWASP ASVS)
  • V1.2.3
  • V1.2.5
  • V1.2.8
  • V1.2.9

Mitigating Controls (NIST CSF 2.0) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→CSF cross-walk (authority under review) — links open the control.

PR.PS-06 mostly match
prevents

Secure SDLC practices directly require input validation and neutralization that prevent command injection.

DE.CM-09 partial match
prevents

Runtime monitoring of software and data can detect anomalous command execution resulting from injection.

ID.RA-01 partial match
prevents

Identifying recorded vulnerabilities enables remediation of command-injection flaws before exploitation.

Mitigating Controls (ISO/IEC 27001:2022 Annex A) AI

Derived directly from the weakness types (CWEs) cited in the NVD entry via our AI-authored CWE→ISO cross-walk (authority under review) — links open the control.

A.8.28 Secure coding mostly match
prevents

Secure coding standards require proper escaping and parameterization of commands, directly eliminating CWE-77.

A.8.29 Security testing in development and acceptance mostly match
finds

Security testing in development catches command-injection vulnerabilities before release.

A.8.25 Secure development life cycle partial match
prevents

Secure development life cycle mandates input validation and command construction practices that directly prevent command injection.

A.8.26 Application security requirements partial match
prevents

Application security requirements explicitly call for controls against injection flaws including command injection.

A.8.27 Secure system architecture and engineering principles partial match
prevents

Secure architecture principles reduce the attack surface but do not prescribe the specific neutralization techniques needed.

A.8.31 Separation of development, test and production environments none match
none

Environment separation limits the blast radius of an exploited command injection but does not prevent the flaw itself.

References