CVE-2023-6636Network attack vector

Administrator-level arbitrary file upload via missing type validation

Published Jan 11, 2024 · Updated Apr 8, 2026

Arbitrary file upload in WPSoul Greenshift 7.6.2 and earlier allows remote authenticated users to place dangerous files on the WordPress server. The gspb_save_files function writes administrator-supplied files to the affected server without first validating their file types. Administrator-level capabilities are required, and execution of an uploaded file by the server turns the arbitrary write into remote code execution.

CVSS severity7.2
High
EPSS probability1.27%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Arbitrary file upload in WPSoul Greenshift 7.6.2 and earlier allows remote authenticated users to place dangerous files on the WordPress server. The gspb_save_files function writes administrator-supplied files to the affected server without first validating their file types. Administrator-level capabilities are required, and execution of an uploaded file by the server turns the arbitrary write into remote code execution.

The record

CVE
CVE-2023-6636
Published
Jan 11, 2024
Updated
Apr 8, 2026
Vendor
WPSoul
Product
Greenshift – animation and page builder blocks
Classifications
CWE-434, T1105
Attack vector
network
Privileges
admin

Timeline

How it unfolded

  1. Jan 11, 2024CVE publishedPublication date reported by the CVE source.
  2. Apr 8, 2026Record 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 <=7.6.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesadmin

What is affected?

WPSoul · Greenshift – animation and page builder blocksversion=0 <=7.6.2

Published CVSS scores

7.2NVDCVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
7.2WordfenceCVSS: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.

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
Privilegesadmin
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-434Unrestricted Upload of File with Dangerous Type
T1105Ingress Tool Transfer

Public exploit references

No public exploit references are available in this record.

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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