CVE-2023-51410Network attack vector

Authenticated arbitrary file upload via send_email validation gap

Published Dec 29, 2023 · Updated Apr 28, 2026

Unrestricted file upload in WPVibes WP Mail Log 1.1.2 and earlier allows remote authenticated users to place arbitrary files on the server. The send_email function accepts an uploaded attachment without validating its file type, permitting dangerous content to be stored in the WordPress environment. Contributor-level access or higher is required, and code execution additionally depends on the server executing the uploaded file.

CVSS severity9.9
Critical
EPSS probability0.61%
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 WPVibes WP Mail Log 1.1.2 and earlier allows remote authenticated users to place arbitrary files on the server. The send_email function accepts an uploaded attachment without validating its file type, permitting dangerous content to be stored in the WordPress environment. Contributor-level access or higher is required, and code execution additionally depends on the server executing the uploaded file.

The record

CVE
CVE-2023-51410
Published
Dec 29, 2023
Updated
Apr 28, 2026
Vendor
WPVibes
Product
WP Mail Log
Classifications
CWE-434, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Dec 29, 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 <=1.1.2 changes=[{"at":"1.1.3","status":"unaffected"}]

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

WPVibes · WP Mail Logversion=n/a <=1.1.2 changes=[{"at":"1.1.3","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
8.8NISTCVSS:3.1/AV:N/AC:L/PR:L/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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-434Unrestricted Upload of File with Dangerous Type
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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