CVE-2023-6049Public exploitNetwork attack vector

Unauthenticated PHP object injection via cookie deserialization

Published Jan 15, 2024 · Updated Jun 3, 2025

PHP object injection in Estatik Real Estate Plugin before 4.1.1 allows remote attackers to inject objects through a crafted cookie. The plugin applies PHP deserialization to the attacker-controlled es_wishlist cookie, instantiating the serialized object it contains. A suitable gadget chain from another installed plugin or theme is required; successful exploitation enables file deletion, sensitive-data access, or code execution.

CVSS severity9.8
Critical
EPSS probability0.93%
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 Estatik Real Estate Plugin before 4.1.1 allows remote attackers to inject objects through a crafted cookie. The plugin applies PHP deserialization to the attacker-controlled es_wishlist cookie, instantiating the serialized object it contains. A suitable gadget chain from another installed plugin or theme is required; successful exploitation enables file deletion, sensitive-data access, or code execution.

The record

CVE
CVE-2023-6049
Published
Jan 15, 2024
Updated
Jun 3, 2025
Vendor
Estatik Inc.
Product
Estatik Real Estate Plugin
Classifications
CWE-502, CAPEC-586, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 15, 2024CVE publishedPublication date reported by the CVE source.
  2. Jun 3, 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 <4.1.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Estatik Inc. · Estatik Real Estate Pluginversion=0 <4.1.1

Published CVSS scores

9.8Wordfence IntelligenceCVSS:3.1/AV:N/AC:L/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.

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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
CAPEC-586Object 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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