CVE-2023-6623Public exploitNetwork attack vector

Unauthenticated file inclusion via overwritten template path

Published Jan 15, 2024 · Updated Jun 11, 2025

Local file inclusion in ReviewX Team Essential Blocks before 4.4.3 allows remote attackers to include server files through the REST API. The template renderer passes REST-supplied data to PHP extract() without EXTR_SKIP, letting __file replace the path later passed to include. No account is required; parsing and code execution depend on the selected local file and server configuration.

CVSS severity9.8
Critical
EPSS probability50.67%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Local file inclusion in ReviewX Team Essential Blocks before 4.4.3 allows remote attackers to include server files through the REST API. The template renderer passes REST-supplied data to PHP extract() without EXTR_SKIP, letting __file replace the path later passed to include. No account is required; parsing and code execution depend on the selected local file and server configuration.

The record

CVE
CVE-2023-6623
Published
Jan 15, 2024
Updated
Jun 11, 2025
Vendor
ReviewX Team
Product
Essential Blocks
Classifications
CWE-22, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 15, 2024CVE publishedPublication date reported by the CVE source.
  2. Jun 11, 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 <4.4.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

ReviewX Team · Essential Blocksversion=0 <4.4.3

Published CVSS scores

9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.8CISA-ADPCVSS: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.

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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
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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