CVE-2023-48777Public exploitNetwork attack vector

Authenticated code execution via pre-validation file write

Published Mar 26, 2024 · Updated Apr 28, 2026

Remote code execution in Elementor Website Builder 3.3.0 through 3.18.1 allows remote authenticated users to execute code via template import. The handle_elementor_upload function writes decoded base64 fileData to a temporary path before validating its extension and leaves rejected files in place. Contributor-level access reaches the Elementor AJAX importer, and successful placement of executable PHP grants control of the WordPress server.

CVSS severity9.9
Critical
EPSS probability4.10%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Remote code execution in Elementor Website Builder 3.3.0 through 3.18.1 allows remote authenticated users to execute code via template import. The handle_elementor_upload function writes decoded base64 fileData to a temporary path before validating its extension and leaves rejected files in place. Contributor-level access reaches the Elementor AJAX importer, and successful placement of executable PHP grants control of the WordPress server.

The record

CVE
CVE-2023-48777
Published
Mar 26, 2024
Updated
Apr 28, 2026
Vendor
Elementor
Product
Elementor Website Builder
Classifications
CWE-434, T1505.003
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Mar 26, 2024CVE 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

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=3.3.0 <=3.18.1
  2. Affected versionversion=3.3.0 <=3.18.1 changes=[{"at":"3.18.2","status":"unaffected"}]

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Elementor · Elementor Website Builderversion=3.3.0 <=3.18.1; version=3.3.0 <=3.18.1 changes=[{"at":"3.18.2","status":"unaffected"}]

Published CVSS scores

8.8WordfenceCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
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 exploitPublished

Weakness, pattern, technique

CWE-434Unrestricted Upload of File with Dangerous Type
T1505.003Server Software Component: Web 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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