juzaweb CMS: Improper authorization in juzaweb CMS Import Page (CVE-2025-6735) #shorts

Summary

Welcome to today’s security briefing. We’re covering CVE-2025-6735, a critical improper authorization flaw in juzaweb CMS 3.4.2 that allows remote attackers to bypass access controls and manipulate the Import Page component.

Product details

The affected product is juzaweb CMS version 3.4.2. This open-source content management system powers websites by offering themes, plugins, and an admin control panel. The vulnerability resides in the Import Page module, specifically within the /admin-cp/imports endpoint.

Vulnerability type summary

This issue stems from improper authorization and incorrect privilege assignment. In simple terms, the software fails to verify user permissions correctly, granting unauthorized users higher privileges than intended.

Details of the vulnerability

An unknown function in the file /admin-cp/imports can be manipulated with crafted HTTP requests. A remote attacker can trigger the flaw without valid credentials, effectively bypassing the normal access control checks. Public exploit code has already been released, and attempts to contact the vendor went unanswered. If left unpatched, attackers can perform administrative actions, import arbitrary data, or compromise site integrity.

Conclusion

If you’re running juzaweb CMS 3.4.2, immediate action is required. Upgrade to a patched version as soon as it becomes available or apply any interim mitigation steps provided by your vendor. Restrict access to the /admin-cp directory, monitor your logs for suspicious activity, and conduct a full security review to ensure no unauthorized changes occurred.

Watch the full video on YouTube: CVE-2025-6735

Remediation and exploitation details

This chain involves the following actors

  • Unauthenticated Attacker: Exploits missing authorization checks to access import functionality
  • System Administrator: Maintains juzaweb CMS and is responsible for patching and access controls

This following systems are involved

  • juzaweb CMS 3.4.2 (Content management for websites): Vulnerable web application that hosts import functionality
  • Import Page Component (Handles data import into the content management system): Provides the endpoint where authorization checks are missing

Attack entry point

  • /admin-cp/imports: Administrative import endpoint that does not verify user credentials before granting access

Remediation actions

System Administrator
Update juzaweb CMS to version 3.4.3 or apply the vendor’s security patch
juzaweb CMS 3.4.2
System Administrator
Restrict or block external access to /admin-cp/imports via firewall rules or network access controls
Import Page Component
System Administrator
Implement server-side authorization checks in the import handler before processing any request
Import Page Component

Exploitation actions

Missing authorization header manipulation

Unauthenticated Attacker
Crafts and sends an HTTP POST request to /admin-cp/imports without any valid session token or credentials
Import Page Component
Examples:
  • curl -X POST "https://victim.com/admin-cp/imports" -d "dummy=data"

Response code and content analysis

Unauthenticated Attacker
Analyzes the HTTP response code and content to confirm access to the import interface
Import Page Component
Examples:
  • HTTP/1.1 200 OK with HTML form fields for file upload

Data import abuse

Unauthenticated Attacker
Uploads a malicious payload (for example, a script disguised as an import file) to the endpoint
Import Page Component
Examples:
  • curl -X POST "https://victim.com/admin-cp/imports" -F "import_file=@backdoor.php"

Remote code execution or content manipulation

Unauthenticated Attacker
Executes or triggers the uploaded payload by making a follow-up request to the imported resource or by manipulating the import result
juzaweb CMS 3.4.2
Examples:
  • Visit https://victim.com/uploads/backdoor.php in a browser to run commands

Related Content

NOTE: The following related content has not been vetted and may be unsafe.

CVE database technical details

CVE ID
CVE-2025-6735
Description
A vulnerability classified as critical has been found in juzaweb CMS 3.4.2. Affected is an unknown function of the file /admin-cp/imports of the component Import Page. The manipulation leads to improper authorization. It is possible to launch the attack remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.,Es wurde eine kritische Schwachstelle in juzaweb CMS 3.4.2 entdeckt. Es betrifft eine unbekannte Funktion der Datei /admin-cp/imports der Komponente Import Page. Durch Manipulation mit unbekannten Daten kann eine improper authorization-Schwachstelle ausgenutzt werden. Der Angriff kann über das Netzwerk erfolgen. Der Exploit steht zur öffentlichen Verfügung.
Provider
VulDB
CWE / problem types
Improper Authorization,Incorrect Privilege Assignment
Affected Software Versions
juzaweb:CMS:[{'version': '3.4.2', 'status': 'affected'}]
Date Published
2025-06-26T23:31:06.272Z
Last Updated
2025-06-27T14:13:28.943Z