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SQL InjectionWeakness · CWE-89

CVE-2025-6918

CRITICAL · 9.8 CVSS v3.1 Published 2025-07-28
Mitigation only
No fix yet — a mitigation exists. There is no fixed release. A documented workaround reduces exposure in the meantime.
See remediation →
100/100
Remediation priority · Urgent
Remotely reachable No privileges Zero-click

Official description Straight from the sourceThe vendor's or NVD's own wording, published unedited. Authoritative, but often terse — it says what broke, rarely what to do.

NVD · unedited
Improper Neutralization of Special Elements used in an SQL Command ('SQL Injection') vulnerability in Ncvav Virtual PBX Software allows SQL Injection. This issue affects Virtual PBX Software: before 09.07.2025.

Technical summary Written by usOur analysis, written from the advisory, the CVSS vector and the affected-version data. It adds context the advisory leaves out, and never invents facts that are not in the source.

dbcve analysis · moderate confidence

SQL injection vulnerability in Ncvav Virtual PBX Software allows remote attackers to inject malicious SQL commands through unsanitized user inputs, potentially enabling unauthorized database access, data exfiltration, or full system compromise. The critical CVSS 9.8 score indicates the vulnerability is network-exploitable and can be achieved with low privilege.

MitigationUpgrade Virtual PBX Software to version released on or after 09.07.2025. Until patched, implement parameterized queries and input validation as immediate compensating controls.

Verify against the referenced sources before acting — the references below are authoritative for this CVE, this summary is not.

CVSS breakdown How the score is builtThe industry scoring standard. It rates how the flaw is reached, what it takes to exploit, and what an attacker gains — the score is derived from those, not the other way round.

From the vector
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

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

Am I affected? How to checkSteps we derive from the advisory and the affected-version data, so you can decide whether this CVE reaches your setup. They are a guide, not a scan — your own configuration is the authority.

dbcve checks

Work through these to decide whether this CVE applies to you.

  1. Identify Ncvav Virtual PBX installation
    Search the system for Ncvav Virtual PBX software by reviewing installed applications, checking for processes named 'ncvav', 'virtualpbx', or related services, and examining web server directories for the application.
    Affected if Ncvav Virtual PBX Software is present on the system
  2. Determine installed version
    Locate the application version by checking the software's 'About' page, examining version files in the installation directory, or querying the application directly through its admin interface or API endpoints.
    Affected if The installed version is earlier than the July 9, 2025 patch release date
  3. Verify user input forms are exposed
    Access the login, registration, or other user-facing forms of the Virtual PBX web interface and identify all input fields that accept user data, such as username, password, or extension fields.
    Affected if User input forms are accessible over the network without additional authentication
  4. Test for SQL injection presence
    Submit single quote characters and common SQL injection payloads (such as ' OR '1'='1, '; DROP TABLE, or UNION-based payloads) into input fields and observe for SQL error messages, unusual database responses, or changes in application behavior.
    Affected if Input fields reflect SQL syntax in error messages or return unexpected data
  5. Review database access logs
    Examine database logs, web server access logs, and application logs for suspicious SQL queries containing UNION, SELECT, DROP, or INSERT statements that originate from user input fields.
    Affected if Logs contain SQL commands injected through web input parameters

The environment is affected if Ncvav Virtual PBX Software is installed and accessible user input forms accept unsanitized SQL queries.

Generated from the published advisory. Verify against your own configuration.

Check your environment

Paste your version and any relevant configuration and it will be compared against the affected criteria above. Do not include secrets or credentials.

AI-assisted, checked against the advisory. Informational, not a guarantee.

Remediation Closing itWhat it takes to close this. Where a vendor fix exists we point at it; where none exists we say so plainly, and can build one. Effort estimates are scoped from the advisory, not from your codebase.

dbcve · scoped
Mitigation available No clean upgrade yet — mitigate in the meantime
Mitigation

Upgrade Virtual PBX Software to version released on or after 09.07.2025. Until patched, implement parameterized queries and input validation as immediate compensating controls.

Recommended fix Moderate confidence

Ncvav Virtual PBX Software version 09.07.2025 or later

  1. 1. Identify the current version of Ncvav Virtual PBX Software installed in your environment
  2. 2. Obtain the updated version of Ncvav Virtual PBX Software (version 09.07.2025 or later) from the vendor
  3. 3. Before applying the update, backup all databases and configuration files associated with the Virtual PBX system
  4. 4. Apply the software upgrade following the vendor's standard upgrade procedure
  5. 5. After upgrading, verify that the SQL injection vulnerability is remediated by testing the affected parameters
  6. 6. Confirm normal system functionality after the upgrade

Generated from the published advisory — verify against the referenced sources before acting.

Have this fixed Scoped from the published advisory
  • Consultation4.0 h
  • Implementation16.0 h
  • Testing8.0 h
  • Review / QA4.0 h
32.0 hours of engineering $5,600
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References Go to the primary sourcePrimary sources — vendor advisories, patches and trackers. Where our summary and a reference disagree, the reference wins.

Primary sources

Practitioner notes

Contributed

Peer-ranked notes from engineers who’ve handled CVE-2025-6918 in production — separate from our analysis above.

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What this is

A place for practitioners to share what actually worked: a mitigation you’ve tested, a configuration change, a version- or environment-specific caveat, or a link to a verified patch. The most useful notes rise to the top as peers upvote them, so the signal stays high.

What belongs here
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  • Version or environment caveats, and links to real fixes
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