CVE-2022-43689Network attack vector

Server IP disclosure via SVG entity expansion

Published Nov 14, 2022 · Updated Apr 30, 2025

XXE in Concrete CMS before 8.5.10 and 9.0.0 through 9.1.1 allows remote authenticated users to disclose the server IP via DNS. The SVG sanitizer expands external XML entities, causing crafted entity URLs to trigger outbound DNS requests that reveal the server address. The vendor's assessment requires high privileges and high attack complexity, although GitHub's assessment reports no required privileges and low complexity.

CVSS severity2.2
Low
EPSS probability0.69%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
Coverage for this vulnerability

See if you're affected

Explore vulnerability checks for your environment with Hinoki.

Book a demo

Summary

What happened

XXE in Concrete CMS before 8.5.10 and 9.0.0 through 9.1.1 allows remote authenticated users to disclose the server IP via DNS. The SVG sanitizer expands external XML entities, causing crafted entity URLs to trigger outbound DNS requests that reveal the server address. The vendor's assessment requires high privileges and high attack complexity, although GitHub's assessment reports no required privileges and low complexity.

The record

CVE
CVE-2022-43689
Published
Nov 14, 2022
Updated
Apr 30, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-611
Attack vector
network
Privileges
Unavailable

Timeline

How it unfolded

  1. Nov 14, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 30, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesUnavailable in this record.

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

2.2Concrete CMSCVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:N/A:N
5.3GitHubCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
5.3CISACVSS: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
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-611Improper Restriction of XML External Entity Reference

Public exploit references

No public exploit references are available in this record.

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

Technologies

Your stack

See the directory against your own environment.

Your stack

Check the software in your environment

Book a demo to see how Hinoki identifies affected software and validates exploitability in your environment.

Book a demo