CVE-2025-5139Public exploitNetwork attack vector

Unauthenticated command execution via nmconexao injection

Published May 25, 2025 · Updated Jun 11, 2025

Command injection in Qualitor Software Qualitor 8.20 and 8.24 allows remote attackers to execute server commands via the nmconexao parameter. The testaConexaoOffice365.php endpoint fails to neutralize attacker-controlled nmconexao input before it reaches an operating-system command. No authentication or user interaction is required, but an Office 365-type connection must be configured; exploitation runs unauthorized commands on the server.

CVSS severity8.1
High
EPSS probability2.57%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Command injection in Qualitor Software Qualitor 8.20 and 8.24 allows remote attackers to execute server commands via the nmconexao parameter. The testaConexaoOffice365.php endpoint fails to neutralize attacker-controlled nmconexao input before it reaches an operating-system command. No authentication or user interaction is required, but an Office 365-type connection must be configured; exploitation runs unauthorized commands on the server.

The record

CVE
CVE-2025-5139
Published
May 25, 2025
Updated
Jun 11, 2025
Vendor
Qualitor Software
Product
Qualitor
Classifications
CWE-74, CWE-77, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. May 25, 2025CVE publishedPublication date reported by the CVE source.
  2. Jun 11, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=8.20
  2. Affected versionversion=8.24

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Qualitor Software · Qualitorversion=8.20; version=8.24

Published CVSS scores

6.3VulDBCVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N
2.9VulDBCVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
6.8VulDBAV:N/AC:M/Au:N/C:P/I:P/A:P
5.6VulDBCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L
8.1NIST NVDCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-74Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')
CWE-77Improper Neutralization of Special Elements used in a Command ('Command Injection')
T1190Exploit Public-Facing Application

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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