CVE-2023-31231Network attack vector

Authenticated file upload via missing type validation

Published Dec 20, 2023 · Updated Apr 28, 2026

Unrestricted file upload in Unlimited Elements For Elementor 1.5.65 and earlier allows remote authenticated users to upload dangerous files. The File Manager accepts attacker-supplied files without validating their types before storing them on the WordPress server. Contributor-level access is required, and the upload places attacker-chosen content on the server; execution depends on server handling and destination.

CVSS severity9.9
Critical
EPSS probability0.65%
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 Unlimited Elements For Elementor 1.5.65 and earlier allows remote authenticated users to upload dangerous files. The File Manager accepts attacker-supplied files without validating their types before storing them on the WordPress server. Contributor-level access is required, and the upload places attacker-chosen content on the server; execution depends on server handling and destination.

The record

CVE
CVE-2023-31231
Published
Dec 20, 2023
Updated
Apr 28, 2026
Vendor
Unlimited Elements
Product
Unlimited Elements For Elementor
Classifications
CWE-434, T1105
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Dec 20, 2023CVE 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=n/a <=1.5.65 changes=[{"at":"1.5.66","status":"unaffected"}]

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Unlimited Elements · Unlimited Elements For Elementorversion=n/a <=1.5.65 changes=[{"at":"1.5.66","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
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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