CVE-2022-25356Public exploitNetwork attack vector

Unauthenticated registration key disclosure via XML injection

Published Apr 5, 2022 · Updated Sep 5, 2025

XML injection in Alt-N MDaemon Security Gateway 2.1.0 through 8.5.0 allows remote attackers to disclose configuration data. The SecurityGateway.dll login handler incorporates arbitrary URL parameters into processed XML, and parser validation errors return configuration values. No authentication is required; disclosed data is limited to the administrator email address, 2FA protection type, and product registration keys.

CVSS severity5.3
Medium
EPSS probability5.72%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

XML injection in Alt-N MDaemon Security Gateway 2.1.0 through 8.5.0 allows remote attackers to disclose configuration data. The SecurityGateway.dll login handler incorporates arbitrary URL parameters into processed XML, and parser validation errors return configuration values. No authentication is required; disclosed data is limited to the administrator email address, 2FA protection type, and product registration keys.

The record

CVE
CVE-2022-25356
Published
Apr 5, 2022
Updated
Sep 5, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-91, CAPEC-250, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Apr 5, 2022CVE publishedPublication date reported by the CVE source.
  2. Sep 5, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

5.3NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
5.0NIST NVDAV:N/AC:L/Au:N/C:P/I:N/A:N
5.3CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

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-91XML Injection (aka Blind XPath Injection)
CAPEC-250XML 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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