CVE-2022-3359Public exploitNetwork attack vector

PHP object injection via unsafe import deserialization

Published Dec 12, 2022 · Updated Apr 22, 2025

PHP object injection in Averta Phlox Core Elements before 2.10.7 allows context-dependent attackers to trigger gadget methods through imported files. The auxin_customizer_import AJAX action base64-decodes an uploaded import file and unserializes its content without restricting permitted classes. Exploitation requires an authorized user to import the crafted file and a compatible gadget chain on the WordPress site; the resulting behavior is limited by that chain.

CVSS severity8.8
High
EPSS probability0.74%
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 Averta Phlox Core Elements before 2.10.7 allows context-dependent attackers to trigger gadget methods through imported files. The auxin_customizer_import AJAX action base64-decodes an uploaded import file and unserializes its content without restricting permitted classes. Exploitation requires an authorized user to import the crafted file and a compatible gadget chain on the WordPress site; the resulting behavior is limited by that chain.

The record

CVE
CVE-2022-3359
Published
Dec 12, 2022
Updated
Apr 22, 2025
Vendor
Averta
Product
Phlox Core Elements
Classifications
CWE-502, T1203
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 12, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 22, 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 <2.10.7

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Averta · Phlox Core Elementsversion=0 <2.10.7

Published CVSS scores

8.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
8.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:R/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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-502Deserialization of Untrusted Data
T1203Exploitation for Client Execution

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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