CVE-2025-53251Network attack vector

Authenticated code execution via unrestricted file upload

Published Aug 21, 2025 · Updated Apr 28, 2026

Unrestricted file upload in An-Themes Pin WP before 7.2 allows remote authenticated users to place executable files on the web server. The theme's bundled Responsive Menu upload handling accepts dangerous file types without adequate validation, permitting storage of a web shell. Subscriber-level access is required; executing the uploaded shell grants code execution in the web server's security context.

CVSS severity9.9
Critical
EPSS probability0.34%
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 An-Themes Pin WP before 7.2 allows remote authenticated users to place executable files on the web server. The theme's bundled Responsive Menu upload handling accepts dangerous file types without adequate validation, permitting storage of a web shell. Subscriber-level access is required; executing the uploaded shell grants code execution in the web server's security context.

The record

CVE
CVE-2025-53251
Published
Aug 21, 2025
Updated
Apr 28, 2026
Vendor
An-Themes
Product
Pin WP
Classifications
CWE-434, CAPEC-650, T1505.003, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Aug 21, 2025CVE publishedPublication date reported by the CVE source.
  2. Apr 28, 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 <=7.2 changes=[{"at":"7.2","status":"unaffected"}]

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

An-Themes · Pin WPversion=0 <=7.2 changes=[{"at":"7.2","status":"unaffected"}]

Published CVSS scores

9.9PatchstackCVSS:3.1/AV:N/AC:L/PR:L/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.

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 exploitUnconfirmed

Weakness, pattern, technique

CWE-434Unrestricted Upload of File with Dangerous Type
CAPEC-650Upload a Web Shell to a Web Server
T1505.003Web Shell
T1190Exploit Public-Facing Application

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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