CVE-2023-4521Public exploitNetwork attack vector

Unauthenticated command execution via retained web shell

Published Sep 25, 2023 · Updated Apr 23, 2025

Remote code execution in Moove Agency Import XML and RSS Feeds before 2.1.5 allows remote attackers to execute operating-system commands. The 2.1.4 package retains the PHP web shell at uploads/169227090864de013cac47b.php, which executes input supplied through the cmd query parameter. Any network client able to reach the plugin directory can invoke the shell without a WordPress account and gain the web server process's execution privileges.

CVSS severity9.8
Critical
EPSS probability40.55%
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 Moove Agency Import XML and RSS Feeds before 2.1.5 allows remote attackers to execute operating-system commands. The 2.1.4 package retains the PHP web shell at uploads/169227090864de013cac47b.php, which executes input supplied through the cmd query parameter. Any network client able to reach the plugin directory can invoke the shell without a WordPress account and gain the web server process's execution privileges.

The record

CVE
CVE-2023-4521
Published
Sep 25, 2023
Updated
Apr 23, 2025
Vendor
Moove Agency
Product
Import XML and RSS Feeds
Classifications
CWE-94, T1059
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 25, 2023CVE publishedPublication date reported by the CVE source.
  2. Apr 23, 2025Record 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=2.1.4 <2.1.5

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Moove Agency · Import XML and RSS Feedsversion=2.1.4 <2.1.5

Published CVSS scores

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 exploitPublished

Weakness, pattern, technique

CWE-94Improper Control of Generation of Code ('Code Injection')
T1059Command and Scripting Interpreter

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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