CVE-2023-47840Public exploitNetwork attack vector

Subscriber-level code execution via unchecked plugin installation

Published Dec 29, 2023 · Updated Apr 28, 2026

Missing authorization in Qode Essential Addons 1.5.2 and earlier allows remote authenticated users to execute code by installing a plugin. The install_plugin() function processes an attacker-chosen plugin slug without checking whether the caller can install plugins, enabling unauthorized installation and activation. Subscriber access and a valid REST API nonce are sufficient; activated plugin code can take control of the WordPress site.

CVSS severity9.9
Critical
EPSS probability1.41%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Missing authorization in Qode Essential Addons 1.5.2 and earlier allows remote authenticated users to execute code by installing a plugin. The install_plugin() function processes an attacker-chosen plugin slug without checking whether the caller can install plugins, enabling unauthorized installation and activation. Subscriber access and a valid REST API nonce are sufficient; activated plugin code can take control of the WordPress site.

The record

CVE
CVE-2023-47840
Published
Dec 29, 2023
Updated
Apr 28, 2026
Vendor
Qode Interactive
Product
Qode Essential Addons
Classifications
CWE-94, 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 <=1.5.2 changes=[{"at":"1.5.3","status":"unaffected"}]

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Qode Interactive · Qode Essential Addonsversion=n/a <=1.5.2 changes=[{"at":"1.5.3","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
8.8NIST NVDCVSS: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 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-94Improper Control of Generation of Code ('Code Injection')
T1190Exploit Public-Facing Application

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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