CVE-2025-23953Public exploitNetwork attack vector

Unauthenticated web-shell upload via unchecked file handling

Published Jan 22, 2025 · Updated May 11, 2026

Unrestricted file upload in Scriptonite user files 2.4.2 and earlier allows remote attackers to place web shells on the server. The wp_head-linked uploadHelper function passes the uploaded file and its basename directly to move_uploaded_file without validating its type. No authentication is required; a crafted frontend POST stores executable content under the WordPress uploads tree, enabling code execution by the web server.

CVSS severity10.0
Critical
EPSS probability0.66%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Unrestricted file upload in Scriptonite user files 2.4.2 and earlier allows remote attackers to place web shells on the server. The wp_head-linked uploadHelper function passes the uploaded file and its basename directly to move_uploaded_file without validating its type. No authentication is required; a crafted frontend POST stores executable content under the WordPress uploads tree, enabling code execution by the web server.

The record

CVE
CVE-2025-23953
Published
Jan 22, 2025
Updated
May 11, 2026
Vendor
Scriptonite
Product
user files
Classifications
CWE-434, CAPEC-650, T1505.003
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jan 22, 2025CVE publishedPublication date reported by the CVE source.
  2. May 11, 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 <=2.4.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Scriptonite · user filesversion=0 <=2.4.2

Published CVSS scores

10.0PatchstackCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/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 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-434Unrestricted Upload of File with Dangerous Type
CAPEC-650Upload a Web Shell to a Web Server
T1505.003Web Shell

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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