CVE-2023-6139Public exploitNetwork attack vector

Subscriber-level denial of service via unauthorized option update

Published Jan 8, 2024 · Updated Jun 3, 2025

Missing authorization in G5Theme Essential Real Estate before 4.4.0 allows remote authenticated users to interrupt WordPress sites. The gsf_save_options AJAX action accepts a subscriber-accessible nonce and writes plugin options without checking an administrative capability. A subscriber account is required, and the resulting unauthorized settings change can interrupt site availability without exposing or reading site data.

CVSS severity6.5
Medium
EPSS probability0.61%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authorization in G5Theme Essential Real Estate before 4.4.0 allows remote authenticated users to interrupt WordPress sites. The gsf_save_options AJAX action accepts a subscriber-accessible nonce and writes plugin options without checking an administrative capability. A subscriber account is required, and the resulting unauthorized settings change can interrupt site availability without exposing or reading site data.

The record

CVE
CVE-2023-6139
Published
Jan 8, 2024
Updated
Jun 3, 2025
Vendor
G5Theme
Product
Essential Real Estate
Classifications
CWE-862, T1499
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 8, 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 <4.4.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

G5Theme · Essential Real Estateversion=0 <4.4.0

Published CVSS scores

6.5NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
6.5CISA-ADPCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/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.

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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-862Missing Authorization
T1499Endpoint Denial of Service

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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