CVE-2022-4043Public exploitNetwork attack vector

Administrator object injection via settings deserialization

Published Jan 9, 2023 · Updated Apr 9, 2025

PHP object injection in WP Custom Admin Interface before 7.29 allows remote authenticated users to inject objects through imported settings. The import_settings action passes the attacker-controlled settings value to PHP unserialize(), instantiating declared classes without an allowlist. Administrator access and a suitable gadget class are required; deserialization then invokes gadget-defined behavior in the WordPress PHP process.

CVSS severity7.2
High
EPSS probability17.69%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

PHP object injection in WP Custom Admin Interface before 7.29 allows remote authenticated users to inject objects through imported settings. The import_settings action passes the attacker-controlled settings value to PHP unserialize(), instantiating declared classes without an allowlist. Administrator access and a suitable gadget class are required; deserialization then invokes gadget-defined behavior in the WordPress PHP process.

The record

CVE
CVE-2022-4043
Published
Jan 9, 2023
Updated
Apr 9, 2025
Vendor
Northern Beaches Websites
Product
WP Custom Admin Interface
Classifications
CWE-502, T1190
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Jan 9, 2023CVE publishedPublication date reported by the CVE source.
  2. Apr 9, 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=0 <7.29

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

Northern Beaches Websites · WP Custom Admin Interfaceversion=0 <7.29

Published CVSS scores

7.2NIST NVDCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
7.2CISA-ADPCVSS:3.1/AV:N/AC:L/PR:H/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.

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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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-502Deserialization of Untrusted Data
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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