CVE-2025-49444Network attack vector

Unauthenticated web-shell upload via missing type validation

Published Jun 17, 2025 · Updated Apr 28, 2026

Arbitrary file upload in Merkulove Reformer for Elementor 1.0.5 and earlier allows remote attackers to place web shells on servers. The upload handler accepts attacker-controlled files without validating their file types before storing them in the WordPress site. When the web server executes uploaded PHP files, the unauthenticated upload provides remote code execution in the site's context.

CVSS severity10.0
Critical
EPSS probability0.37%
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 Merkulove Reformer for Elementor 1.0.5 and earlier allows remote attackers to place web shells on servers. The upload handler accepts attacker-controlled files without validating their file types before storing them in the WordPress site. When the web server executes uploaded PHP files, the unauthenticated upload provides remote code execution in the site's context.

The record

CVE
CVE-2025-49444
Published
Jun 17, 2025
Updated
Apr 28, 2026
Vendor
Merkulove
Product
Reformer for Elementor
Classifications
CWE-434, CAPEC-650, T1505.003, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Jun 17, 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 <=1.0.5

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Merkulove · Reformer for Elementorversion=0 <=1.0.5

Published CVSS scores

10.0PatchstackCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
9.8WordfenceCVSS: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 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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