CVE-2025-5421Public exploitNetwork attack vector

Authenticated code execution via unrestricted plugin editing

Published Jun 2, 2025 · Updated Jun 2, 2025

Improper access control in Juzaweb CMS 3.4.0 through 3.4.2 allows remote authenticated users to edit installed plugin code. The /admin-cp/plugin/editor route permits a role with all permissions disabled to open the plugin editor and save changes to plugin functions. Any low-privilege account can alter server-executed plugin code, enabling arbitrary code execution in the CMS process.

CVSS severity5.3
Medium
EPSS probability0.43%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper access control in Juzaweb CMS 3.4.0 through 3.4.2 allows remote authenticated users to edit installed plugin code. The /admin-cp/plugin/editor route permits a role with all permissions disabled to open the plugin editor and save changes to plugin functions. Any low-privilege account can alter server-executed plugin code, enabling arbitrary code execution in the CMS process.

The record

CVE
CVE-2025-5421
Published
Jun 2, 2025
Updated
Jun 2, 2025
Vendor
Juzaweb
Product
Juzaweb CMS
Classifications
CWE-266, CWE-284, T1505
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 2, 2025CVE publishedPublication date reported by the CVE source.
  2. Jun 2, 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=3.4.0
  2. Affected versionversion=3.4.1
  3. Affected versionversion=3.4.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Juzaweb · Juzaweb CMSversion=3.4.0; version=3.4.1; version=3.4.2

Published CVSS scores

6.5VulDBAV:N/AC:L/Au:S/C:P/I:P/A:P
6.3VulDBCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
5.3VulDBCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

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-266Incorrect Privilege Assignment
CWE-284Improper Access Control
T1505Server Software Component

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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